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ECS User Manual v1

1. 15 4 CONTROL INPUT CONNECTORS ccccccccsecccccesececcsecsseensesceeuceceesusecsseeesseeeuceseueuneseseenesss 16 By LOGIC OUTPUTS CONNECTORS 19 99 5 908 0009 0 00R Inti adiret E 17 B RS232 CONNE TOR arcsec adum sacra RR SeRcbMtUacadbs E 17 7 ETHERNET RJA5 CONNECTOR tette tette tette teretes 18 S TEEEPHONE CONNECTOR ourediestitemion iMt tds eRtieu E MT ereMR M edpP Det UI IM DEM DMEUE 18 9 AUDIOAINPUT OUTPUT CONNECT OR sitio e ate SEIS ED bene ui apte tt EDS Ee Reo Up e E ENN 18 zie V Neg E ECD IM ms 19 ACOUSTIC ECHO CANCELLATION AEC iocis desde p Fa SUE Do YyDISS PURSE RHve PUE Fe iP EDS Sa av SEM FR VOR M dva S eR toS eds 24 ACOUSTIC ECHO EXPLANATIQODL ni Statu PV a I IS ERERPEE E EC E E EE NP RESET TEMPS ESES HU RE o UR REMIS P TE I bSESERSUdUER 24 ACOUSTIC ECHO CANCELLATION RULES 2 0 cesses ecnssecnseecuscecnccesecssecasseceseeceseeseseusesenss 25 PATE PP LOIN c manse ees 2 PEG VT EVV DE VCE Sarees 2 SA ENG a E E E de cad eanion eias nabnde secon abaaietiaascuatiosendmeussteceteon 27 ECS MANUAL Version EN 2 Design tB BS eee nnn eee nee FIM EUM TUM MIU ee Un ENU NEU UM UE 29 AEC WITERONE DEVICE aeneis Eu ssm E E NUEVE SRUIUU CRI PIERII nM MU DESI MUCIUS UE 31 PENE oae oSv server ne nee MM UN A MEINEM DUUM TUM 31 BIB dc M T 31 AECA CODEC SERVER eee ene En EMINUS NU ee 33 SPENE Rm
2. 53 VOIP Transmit COmDOHBGS TE ssa vereio Ee ab RNEEENPEEHEREIRPSQEECHEEREEEIPESIES E PUE RUV E REbEGERRER SE SEVCVIPENE mmnelasys 54 AP EINE S Tr E 55 VolP Receive Component ssessessessessessessessessesseesessersrrsrrsrrsresresressrsrrosroseosessesseoseeseeseeseesee 56 LOCALECHO SUPPRESSOR eatsie cates ciceaceseer sotatsec cere esata vacaceea betes cade eas ual MMC EUR CS UN ELI 57 Me RIBERUNTE 58 Design In the eS E ier detenta uti UC E eU IM UMEN I M EI MN MINES 58 LOCAL ECHO SUPPRESSOR COMPONENT csccssssssessonssectcnssscnesssestcussscueussscnsoussestenssseneeusrenee 59 ADDITIONAL DEVICES FOR ECS SYSTEM sescssssncscssnoteasdesianssutincagducannaasaneworaducedosasusssbaeteiessadeeneneaueeans 60 URC UNIVERSAL REMOTE CONTROL not available ssec 60 IRR ES E RET 60 als duree qii AUR Re A MT TERT 60 RAC REMOTE ACCESS CONTROL uiocisisise pea itiebas udeUbhiduti sensi tor oc NUN EREE EE 61 PAIS PIOU m 61 Connect URC TO EC tinretacuienrndueenes 62 CONNEC ERACO EC kerni S E 62 ATEIS 5 ECS MANUAL Version EN 2 ATEIS INTRODUCTION WELCOME Thank you for choosing ATEIS ECS We hope you will enjoy using this exciting piece of technology as much as we enjoy developing and building it This manual can be updated a
3. Port A E E RSAB5 b Control Ir pul p Output 4 Configurable Audio I O Configurable Audio I O Configurable Audio I O ECS MANUAL Version EN 2 Schematic TC AEC Example ECS with Telephone Card calling a Cellphone TC Transmit Room A Design in the ECS Regarding the basic schematic above here is the corresponding design which must be created with Ateis Studio software The TC Transmit component is the interface between the local microphone or audio sources and the telephone line Its input has to be linked to an input component where the microphone is physically connected to the ECS The TC Receive component is the interface between the local listening system loudspeaker and the telephone line Its output has to be linked to an output component where the listening system is physically connected to the ECS You can use any input output channels of the ECS ECS MANUAL Version EN 2 TELEPHONE CARD COMPONENT The telephone card component allows using the ECS as a telephone interface In the ECS configuration design the telephone card consist of a TC transmit component and a TC receive component When your PC with Ateis Studio software is connected live with the ECS the TC transmit and TC receive component offer a telephone interface allowing you to manage the telephone call TC Transmit Component The TC transmit component provides the telephone keypad with the standard funct
4. Echo Detect led This led lit when an echo is detected Signal led This led lit when an audio signal is detected ERLE dB Echo Return Loss Enhancement The decrement of echo it indicates the quality of the AEC AEC Coefficient Selector Function supplied for AEC controlled status It Perform offers 4 functions Bypass Hold e Perform turn on the AEC function e Bypass turn off the AEC function Reset e Hold hold the parameters of the echo lt coefficient EM o x PE F TE Da ss Reset Reset the echo cancellation on the channel echo cancellation Reset the echo cancellation on the channel the channel Volume dB ref a Audio volume of the Far end audio signal d 3 _ Volume dB WWearena fe A ro rae Volume dB E m m Near End Vu meter Audio volume of the Near end audio signal Local k Volume IIT dB v Selector NonLinear Process Soft The purpose is to suppress the remain echo in F Medium complex environment Aggressive Coefficient It offers four functions Microphone Off Threshold off NLP function off dB soft weak intensity of remain echo suppression medium medium intensity of remain echo suppression aggressive aggressive intensity of F 7 remain echo n 38 SEO suppression NR Threshold Microphone 50 to 20 The threshold value of the Nonlinear Process J Threshold dB dB Noise
5. Paging mE m Customized L o 7 alll HETE aai E JE E I A o ATEIS 52 e ECS MANUAL Version EN 2 Machine Status Area Parameters Mute the caller signal Level control of the caller signal Level control of the ring signal Auto answer Manus Active the auto answer function by selecting after how many Mter 1 ri rings the ECS will answer After 4 rings After 5 rings After 6 rings Button Active the noise suppression on the caller signal Active the echo cancellation on the line Active the Voice Enhance on the line Light when a DTMF signal is detected Display the last DTMF signal received VoIP You can link two ECS devices through an IP network instead of a telephone line In the ECS configuration design the Voice over IP VoIP consist of a VoIP transmit component and a VoIP receive component When your PC with Ateis Studio software is connected live with the ECS the VoIP transmit and VoIP receive component offer an interface allowing you to manage the VoIP call Schematic A system using a VoIP link with AEC will have the corresponding design which must be created with Ateis Studio software VoIP COMPONENT The VoIP component allows using the ECS as a VoIP phone In the ECS configuration design the VoIP consist of a VoIP transmit component and a VoIP receive component When your PC with Ateis Studio software is connected live with the ECS a VoIP ECS MANUAL Version E
6. IP address of the PPM IT5 which will allow to control the ECS IP Server Display the IP address of the SIP Server User IP Server User ID to be registered on the SIP server Password Ser Display Display the password to be connected to the SIP Server ver IP Local Display the IP address of the router used if the device in behind a router Routing Server VoIP Receive Component The VoIP Receive component allows seeing the incoming call and provides also some controls Here you can adjust the audio level of the incoming caller signal and mute it The auto answer function is available allowing the ECS to automatically answer the incoming call VoIP Receive Machine Status Area Parameters Received 60 to 20 dB Level control of the received signal signal Level Immediately Selecting after how many rings the ECS will answer After 1 Ring After 2 Rings After 3 Rings ATE S 56 ECS MANUAL Version EN 2 LOCAL ECHO SUPPRESSOR The local echo suppressor is needed if a microphone is amplified and its signal is sent to a loudspeaker for a local listening In this case two problems may appear There is a risk of feedback Larsen when the microphone receives its own sound highly The signal will be indefinitely amplified which result in a high frequency signal on the loudspeaker very uncomfortable called Larsen The pre processing of the local echo suppressor limits the input to avoid feedback It didn t stop the feedback
7. Microphones Every microphone has to use the AEC before to be sent to the mixer 1 for the transmission One microphone needs one AEC channels The reference of these AEC channels is the Far End signal after the AEC treatment If there is a local amplification each microphone has to use a local echo suppressor before to be sent to the mixer 2 for the local amplification Audio line The audio sources which are not microphones don t need use AEC They are directly sent to the mixer1 and 2 for the transmission and the local amplification Far End signal If the transmission system use a codec server then the Far End signal has to use one AEC channel The reference of this AEC channels is the mixed signal of all the local audio sources output of mixer 1 Schematic Client 1 transmission system CODEC SERVER microphone 1 S near AEC ou E end oe output to hu transmission microphone D i system cc SS line 2 CD 23002 local echo suppressor mixer local amplification local echo 2 suppressor Far End signal ong AEC ou coming from transmission system D D 5 e As the AEC component contains four channels all these three AEC modules for mic 1 mic 2 and far end signal are in one AEC component Design in the ECS Regarding the complete schematic above here is the corresponding design which must be created with Ateis Studio software ECS MANUAL Version EN 2 The AEC
8. 4 76 99 26 31 Web contact http www ateis france fr Ateis Germany Kirchenstrasse 11 82194 Gr benzell Deutschland Phone 49 0 8142 305070 30 Fax 49 0 8142 305070 39 Web http www ateis germany de Mail vertrieb ateis germany de Ateis UK Fountain Court 2 Victoria Square Victoria Street St Albans Hertfordshire AL1 3TF UK phone 44 0 8456 521 511 Fax 44 0 8456 522 527 Web contact http www ateis co uk Ateis China ieS FE ERRA tub Nhu Eiri 7TJK RE P2555 DAAB610E FIG 021 54495191 92 EE 021 54495193 Web contact http www ateis com cn ECS MANUAL Version EN 2 ECS PRESENTATION The ATEIS ECS is the new Ateis processor which includes the echo cancellation component in more than general functions of UAPg2 and LAPg2 Designed for Teleconference amp Conference applications the ECS is the new DSP audio Matrix for medium paging application and multi zone audio routing According to its powerful audio numerical signal treatment the ECS can easily be used in an exigent environment requiring audio quality Thanks to its Ethernet port you can easily connect and pilot the ECS through an IP network or direct from a PC by using RJ 45 connector ECS s programming is done through convivial software Ateis Studio based on graphical Windows design environment The signal path is defined by adding DSP components Equalizer Gate Compressor delay simply inserted in a clear and easy g
9. ADDITIONAL DEVICES FOR ECS SYSTEM To maintain simple secure and intuitive interfaces for operators the ECS offers different types of remote controllers e Universal Remote Control URC e Programmable Paging Microphone PPM IT5 amp PPM IT5 F e RACS or RAC8 URC UNIVERSAL REMOTE CONTROL not available URC can be fully programmed via ECS software to adjust every setting you want volume mute preset components adjustments This remote device is connected to the ECS via the RS485 port PPM IT5 F The PPM IT5 amp the PPM IT5 F allow you to dial for the ECS The PPM IT will be then the remote control of the ECS How to configure the system 1 Goln the PPM IT5 F webpage For that enter the IP address in your favourite internet browser the PPM IT5 IP address 2 Goin Setup gt basic settings Dial agent Dial Agent Agent Enable Disable Dialer IP 192 168 10 212 Select Enable and enter the IP address of the ECS the PPM should take the control of ATEIS 60 ECS MANUAL Version EN 2 3 Open Ateis Studio and add to the configuration a VoIP Transmit component even if you are using the ECS in telephone mode only PP 4 Inthe VoIP Transmit component configure the settings mm cur MN a 111252 93 128 5 _ 5060 a User ID 4 france ecs 1 In Agent IP enter the IP address of the PPM IT5F 5 The shortcut icons on the touchscreen of the PPM IT5 are configured
10. ECS MANUAL Version EN 2 Client 1 NL AEC ou Client 1 signal 4 far end signal from video codec As each client receives its own signal mixed with the others then each client has to use an AEC to remove its own signal from the received signal called far end This is the second using of the AEC Client 1 Client 1 signal ar end signal from video codec In a system with video codec each client has to send a proper signal to the video codec and also to remove its own signal from the incoming signal far end The following schematic includes all the required functions decrypted above on a client side for a system with video codec Client 1 transmission system CODEC SERVER ECS MANUAL Version EN 2 Design in the ECS Regarding the schematic of a system using a codec server here is the corresponding design which must be created with Ateis Studio software The AEC component provides four independent channels As we need one channel for each microphones signal if there are several local microphones and one for the far end signal the using of one AEC component is enough Schematic Glient 1 output to codec client 1 signal input from codec far end signal Design Client 1 ECS input from codec far end signal It s not easy at first sight but this design is exactly corresponding to the schematic The AEC channel 1 linked to the local microp
11. 3rd Party Control List You can now a start a configuration from scratch File gt New b upload REVERSE a configuration to modify it Device Management gt Reverse Device Management CO Deves npe Mesnet SerialNumber Address Redundancy Addr Device Status Name Communication 192 168 100 6 Search l Clear Search Timeout Interval 5 s Search By IP GJ rd Party Control Command GJ 3rd Party Control List Device Management Processing 0 96 Processing 11 Configure the ATEIS NET settings Device management gt ATEIS NET Deploying This operation gives an ATEIS NET ID to the device even if you don t use the ATEIS NET 2048 x 1024 i 1 1 Disconnect Update Telephone Card Se Reverse ECS 1 1 174 192 168 100 6 Redundancy Read j Search Timeout Interval 5 S Search By IP Co ATEISNET Devloving DY Sr emails pm 12 If you start a new configuration Drag amp drop the device into the main window Double clic on the device in the main window to open the ECS DSP configuration window 13 Design your system Please refer to the Ateis Studio Manuel 14 Once you configuration is done download it into the ECS operation store it compiles and uploads the configuration into the device BS ATEIS s A ECS MANUAL Version EN 2 15 You can now either disconnect the PC or still be conne
12. Button Enable the noise gate Reduction Enable NR Threshold 50 to O dB Threshold of the noise gate Noise Reduction ATEIS 4 L ECS MANUAL Version EN 2 AEC SETUP PROCEDURE The design must be stored into the ECS and your PC on which Ateis Studio is running must be On line live with the ECS Now you can start the setup procedure You can have different kind of ECS use but the setup procedure idea is the same for all For example let s take this complete configuration Client 1 transmission system CODEC SERVER far end s OUT AEC eng This procedure is decrypted on several pages but the idea is simple e Turn off local amplification e Bypass the AEC e Adjust signal coming from the other side e Adjust local sources e Adjust the local echo suppressors of the local sources e Activate the AEC Turn off local amplification 1 If you have a local amplification of the local sources then turn off the local application Only the far end signal is allowed in the speakers Mute the local sources in the mixer of the local amplification and just enable the far end signal coming from the other side ECS MANUAL Version EN 2 Client 1 1 N s AEC OU T transmission system local echo Q CODEC suppressor SERVER a O 1 EN Auto Mixer CEA acum On Veve de Mute the local sources E eil d mr lt oo l a al a 3 j ani nis re TE ee Sa E Bypass t
13. component provides four independent channels As we need one channel for each microphones signal and one for the far end signal the using of one AEC component is enough Client 1 Output to codec client 1 signal Input from code Far End signal line 1 Radio line 2 CD local amplification ATEIS 38 ECS MANUAL Version EN 2 AEC COMPONENT FUNCTIONS The AEC component provides four fully independent channels On the component each channel has one input called far in one output and one reference l J Detect r sz r r T r called far end The far end signal will be removed F of the far in signal in order to send a proper signal signa aai e to the other room MERE oo EN ca ccc mew T AE tional ok I IS mm Coefficient 77 Las near end 1 output 1 Reset near end 2 output 2 near end 3 output 3 Far End near end 4 output 4 Volume dB ref _ Near End Volume dB a Local Microphone Threshold Noise Reduction F Threshold dB AEC Coefficient Reset On each channel you can independently activate the echo cancellation process by setting the AEC Coefficient parameter on Perform You can also let it working without the process activates by keeping the AEC coefficient by choosing Hold Of course you can deactivate it on Off Coefficient dl The reset button is used to reset the AEC coefficient Volume display and control ATE S 39
14. e ECS MANUAL Version EN 2 Far End The far end volume and near end volume vu meters display respectively the Volume dB far end and near end volume level If you want to modify the volume of a source near end inputs then you have to use the Near End Level knobs in the AEC component When the system is Volume dB properly adjusted it is not advised to change the volume by using another parameter than this one Non Linear Process NLP The microphone captures the sound coming from the loudspeaker and also the speaker s voice llicrophone Threshold If on the microphone capsule the sound pressure level of the loudspeaker dB sound is near of the sound pressure level of the speaker s voice then the AEC component won t be able to recognize them In this case the AEC process is stopped and the non linear process is activated Rn A es AEC ou All you have to do is to choose the type of the non linear process soft medium aggressive or off Soft Medium Aggressive Off The Microphone Threshold should be set up at the maximum level of the Near End volume ATEIS 40 ECS MANUAL Version EN 2 AEC COMPONENT PARAMETERS This component is used to avoid reflected signals caused by acoustic echo between microphones and speakers in remote conference applications The control window of the AEC module is opened by a double click on the icon in the DESIGN AREA and appears like this AEC Parameters
15. in the PPM IT5 webpages To add an icon one or several devices to call go in Setup device list gt Add New Device Then go in Setup Main window Page Content Add a device Page Content Allow using analog inputs for selecting a channel among 5 or 8 and setting the volume e RACS5 Wall mounted level and 5 sources selectors e RAC8 Wall mounted level and 8 sources selectors Rj45 pin out ATEIS 61 e ECS MANUAL Version EN 2 12345678 I M For practically all the wiring you ll need straight CAT5 cable 4 pairs l hh ni Connect URC to ECS Connect RAC to ECS 18 12 3 4 5 6 7 8 9 10 j Analog Control Input ATEIS 62 o ECS MANUAL Version EN 2 ATEIS We all hope at Ateis you will enjoy using this master piece of technology We remains at your entire disposal for any comments or request do not hesitate to contact your local dealer for further information ATEIS 63
16. vues tue Duc uin ld tese dup at ed beo adapt 6 CINT CE v 7 NNN crer E m 8 PS REINES time csidesanees 9 AAEN hg oh i eee nee en een fee ee er ee ne ee en ee ene eee eee es 10 Miei p E ee 10 AUDIO m nae 10 EENH IN ORCUTIK 11 S9 1 0 E pues eared rset bane ee setae pean eet odes acess 11 SOTEM CONFIGURATION Ree nr re mere r ee ee ree ee eee ee 11 PRESET MANAGEMEN ee cn Ee S 12 ATER INSIGNE C 12 SYTEM REQUIREMENT r 12 SYSTEM CONFIGURATION PROCEDURE ccsssscscsscscnscvenstecnssecnscsevacescnsessasevenstecassscacsscers 12 FIRMWARE UPDATE escrin 14 HAROWARE DESCRIPTION mT 14 FRONT PANE Correre E E S 14 DO DLU DATA A ee ee ee ree 14 ZI ENTER BUTTON erinra eT ERE eee neces 14 H BACK BUTTON P 14 4 NETA7 NET BLED ecn eee meee eee 14 5 CONFIGURABLE AUDIO 1 0 INDICATOR eeeeeeennnnnnnnmennnnnnnnnnnnnnnn ness 14 O ETHERNET TED ere ER 15 TPOWER TED o E E A 15 PEAR MAU al MERECE E ERR 15 MA VY ECON ceecee 15 PARI eee seo c 15 Senses ize
17. 1 signal input from transmission system or codec Far End signal ECS MANUAL Version EN 2 AEC APPLICATIONS The principal applications where you will use an ECS are AEC with a telephone line see Telephone Card chapter AEC through a video conference system because the AEC of the ECS is superior to the ones offered by the video system and if you need a lot of audio inputs AEC with an internet link see VoIP chapter AEC WITH TWO DEVICES Schematic In a system without video codec each side receives the incoming signal called far end coming from the other side Without AEC this signal contains the audio sources of the other side microphones and maybe PC DVD etc and the echo due to the acoustic reflections on the other side The idea of the AEC is to send a proper signal to the other side The AEC simulates the local reflections and removes them from the signal to be sent The AEC component modifies the signal of the local microphone by using the far end signal as reference ROOM 1 T i m ECHO M D ri This is an example of a standard point to point system ATEIS 27 e ECS MANUAL Version EN 2 Hoom A Hoom B d bd b Add EE tt ET LIILIIIILIIIIJ On the both sides there is an AEC component on the microphones in order to send a proper signal to the other side The reference signal of the AEC is the signal coming from the other side called far end signal ECS MANUAL
18. 33 BeA EC T 35 AEC WITH CODEC SERVER AND LOCAL AMPLIFICATION eere 36 we FM iN e NER 36 D scieninthe ECS sese sd ore E Menu Is quisi 36 AEC WITH FULL EXAMPLE 2 mics 2 lines local amplification cccccccceessecceceeeseeeeeeeeeeeeeees 37 SY G1 00119 eT mm 37 Desrenanthe EG aes rahee cee sccrdinnastcetnceyerecest E E S 37 AEC CONIPONENT FUNCTIONS erben dedos epi ride te iride a tac EEE 39 AEC eo e mE cci NUR 39 Volume display and CONT Ol PER RU 39 Non Linear Process NEP eeanen ene eee ee mee nse nee ee me nt nee fete nee Pe On ere nner eee 40 AEC COMPONENT PARAIVIET ERSicscnistwssccscensenicvecaumsos sates dateecnasaddanawe ivuconoasananionteuecaaveddauioaiameasweaces 41 AEC SE UIP PROGR Ei aise screctpcare cre eters E sem aetna ufui erm ies aded deste beu Ede 42 TEL FPHONE CARD 49 SCE DIOL cates ENEA eee este mm 49 feri uem A r E tensa nes cea eed dataetecenatoane satan daecoeseedensol ssusencseet 50 OSHS MIA E oec act sectors dtu cane oseven senses E tana eadeatseeveunoueeienioasusunee ac 50 TELEPHONE CARD COMPONENT jcctetcscccssensced tocanaceasentcetevesncceddavios iuuconeesacendoaduacceaneedauiestaeeanecene 51 TC Transmite COMPONE oneee E 51 WE RECEIVES COMPODGN Esec EE E 52 NOU E 53 St ANN SENT m 53 yeso je M
19. AT 5 cable 3 Power up ECS device The power LED will turn red at the front panel section 4 Start Ateis Studio 5 Choose the right network card on which the ECS network is linked Device Management gt Network NIC ECS MANUAL Version EN 2 Device Management NIC Broadcom NetXtreme 57xx Gigabit Controller M IP Address 0 0 0 0 UDP Port 19760 3rd Party Control Command 3rd Party Control List Disconnected Net Fait Bevac 512x512 Fi 2048x1024 Be ii empty E 6 Even if your PC is not in the same subnet as your ECS Ateis Studio is able to discover Ateis devices on the network Device management gt Search Ateis Studio will return a list of all ATEIS products it will find on the network 7 Check the IP address of your ECS written on the front panel screen device Setting gt Network gt IP Address The default factory setting of the IP address is the IP address 192 168 100 5 8 You can modify if needed the IP address of your ECS on the front panel device Setting gt Network gt IP Address 9 Now you will need to modify the IP address of your PC to be in the same subnet than your ECS device s 10 Select the ECS you want to be connected on and connect the Ateis Studio to the ECS Device Management gt Connect Device status Name Communication prn l om Search Timeout Interval 5 Is Search By IP 3rd Party Control Command EJ
20. ATEIS ECS MANUAL Full instruction guide for the Echo Cancellation System 18 3 2011 ECS MANUAL Version EN 2 FOR YOUR SAFETY Please follow the instructions in this chapter to get the optimum results from these units EXCLUSION OF RESPONSIBILITY Manufacturer importer or dealer shall not be liable for any incidental damages including personal injury or any other damages caused by improper use or operation of the ECS INTERFERENCE Like all computing devices the ECS uses high frequency digital circuitry that may cause interference on radio or television equipment placed close to the unit The best solution for problems like this is to relocate the affected parts WARNING Warning This sign indicates a potentially hazardous situation that can result in death or serious personal injury e Do not expose the ECS to extreme temperatures direct sunlight humidity or dust which could cause fire or electrical shock hazard e Keep away water or other liquids from the ECS Otherwise fire or electrical shock may result e Connect the power cord only to an AC outlet of the type stated in this Owner s Manual or as marked on the unit Otherwise fire and electrical shock hazard results e When disconnecting the power cord from an AC outlet always grab the plug Never pull the cord A damaged power cord is a potential risk of fire and electrical shock hazard e Avoid touching power plugs with wet hands Doing so is a potenti
21. Adjust local sources 6 Make proper adjustment of the input sensitivity of the local microphones on the input component 7 Inthe AEC 1 make proper adjustment of Background Noise Threshold then To Press Noise reduction Enable button to make noise reduction working EN Input SENOS I Bypass iil Iu Mute I E cr Kods p input sensitivity of mics E must be set off line Power Ss Ze Level adjustment of mics Overload 8 _Thd dB Client 1 V O far end our AEC BYPASSED 2 ATEIS 45 WIN mF Echo l Detect Signal J mM 2 m P dB AEC Coefficient _ Reset I Far End Volume dB zx E m Near End Volume dB NLP a NLP Threshold dB Noise Reduction Enable F NR Threshold dB transmission system CODEC SERVER 293002 ECS MANUAL Version EN 2 Adjust the local echo suppressors of the local sources If you have a local amplification the purpose of this step is to turn on the local amplifier application and to turn off the signal coming from the other side Only the far in signals microphones are allowed in the speakers 10 Enable the local sources in the mixer of the local amplification mute the far end signal coming from the other side 11 Make adjustment of Pre Threshold of LES Maximum audio level 12 Make adjustment Post Threshold of LES Minimum audio level By
22. ECS It is this component which allows echo cancellation After selecting placing and wiring DSP Components your System will be compiled and sent to the ECS via TCP IP Ethernet port PRESET MANAGEMENT The ECS includes two types of presets The Master presets Design preset they enable completely different designs to be restored Application examples for this feature are hotel meeting rooms with removable walls The Sub Preset presets Parameter preset They enable values of multiple parameters of the same design such as levels gains EQ etc to be restored either from the PC software the remote controllers or the control inputs These Master Presets and Sub Presets reside in the ECS s memory which can be accessed in many ways PC Logic inputs Third party The limitation depends on memory usage In Ateis Studio there is an indication of percentage of used memory ATEIS STUDIO For deep explanation of the Ateis Studio please refer to the Ateis Studio Manual In this manual we will present you how to connect to the ECS and all the ECS special features SYSTEM REQUIREMENT The Ateis Studio software minimum system requirements are Windows XP 7 Vista Processor 2 2 GHerzt PC must have a 10 100baseT NIC SYSTEM CONFIGURATION PROCEDURE 1 Install the Ateis Studio software on your PC please check on www ateis com for the last version 2 Plugthe PC directly or through a network to the ECS with a C
23. If you want to remove the feedback then you have to use the feedback component The second problem that may appear is the residuals echo These echoes are due to the local reflections As the sound in the room is sent to different directions it reflects in the wall the ceiling or the floor So the sound uses different ways between the loudspeaker and the microphone these ways have different lengths that result by several little echoes wall ceiling or floor of the room d Amplified pp Q a T microphone ECS MANUAL Version EN 2 Schematic To avoid the two problems explained above a local echo suppressor is added between the microphone and the listening system The local echo suppressor component is split in two parts The Pre Processing part take care of the feedback and the Post Processing part take care of residual echoes Microphone local echo suppressor Amplified Loudspeaker Design in the ECS Regarding the basic schematic above here is the corresponding design which must be created with Ateis Studio software The input of the Local Echo Suppressor has to be linked to an input component where the microphone is physically connected to the ECS The output of the Local Echo Suppressor has to be linked to an output component where the listening system is physically connected to the ECS You can use any input output channels of the ECS ECS Microphone Ampli
24. L Version EN 2 Preset Inf gt Information about sub preset and master preset e Master Preset at the right is displayed the current master preset number e Sub Preset at the right is displayed the current sub preset number e Return go back root menu Fault Display the current fault and status of the ECS e Return go back to root menu Network IP Address Here you can set the IP address of the ECS o Edit click here to set the IP o Return go back to Network menu Edit gt Type the IP address and click ENTER ATEIS N 0 ECS MANUAL Version EN 2 Sub Mask Here you can set the sub net mask of the ECS o Edit click here to set the mask o Return go back to Network menu Edit gt Type the sub net mask and click ENTER Gateway Here you can set the gateway of the ECS o Edit click here to set gateway IP o Return go back to Network menu Edit Type the gateway IP and click ENTER Version gt Display the current version numbers e MCU Version displays the version of the MCU e DSP Version displays the version of the DSP e Return go back to root menu ATEIS 21 Me ECS MANUAL Version EN 2 Temperature Display the temperature of the ECS e Temperature displays the current temperature inside the ECS e Return go back to root menu User MG Allows the user management e ID click here and type the ID e PX click here a
25. N 2 transmit component and a VoIP receive component offer an interface allowing you to manage the SIP call VoIP Transmit Component The VoIP transmit component provides the standard functions to create an IP link There are two ways of creating this link With a SIP call With a direct call EN VoIP Transmit Component france IT5F 1 france IT5 1 SWiss ecs 1 Machine Status Area Parameters ATEIS 54 ECS MANUAL Version EN 2 Stop the transmit stream but keep the connection Transmit 60 to 20 dB Level control of the transmit signal signal Level Ring Light when the VoIP Receiver is ringing on the other side Two kind of call can be done JA direct call For that you need to enter the IP destination address and the RTP port used for the audio The SIP server For that you need to check SERVER and to set up correctly the SIP Server settings describe below Light when the SIP conversation is started SIP settings Before starting a SIP call you must configure the SIP server s aml Ez Mese Sao I a men ATEIS 55 ECS MANUAL Version EN 2 Display Display the name of the device which is registered in the SIP Server RTP port Display Display the SIP port you will use for the audio stream SIP Port Display Display the SIP port you will use to contact the SIP Server usually 5060 G 722 Select the audio codec you will use for the IP transmission
26. Near End Volume dB NLP Threshold dB The system is ready ATE S 48 ECS MANUAL Version EN 2 TELEPHONE CARD wu Line tel Set By linking the Line connector of the ECS to a telephone line and by using a microphone and a loudspeaker then you can use the ECS as a telephone interface The interface of this telephone is available by using the Telephone Card dedicated components in Ateis Studio software which are TC transmit and TC receive i Selector d Telephone Card In option you can also connect a telephone to the Set connector of the ECS allowing you to have a physical interface The telephone line bandwidth is around 300Hz 3 3kHz Thanks to the voice enhance we simulate the bandwith up to 8kHz If a distortion resulting in a metallic sound disturbs the voice disable the voice enhance Schematic e Connect the direct telephone line or a line coming from a PABX central to the Line RJ11 connector of the ECS e In option you can also connect an analog telephone to the Set RJ11 connector of the ECS e Connect a microphone or audio source to an input of the ECS It will be used as telephone microphone e Connect a listening system loudspeaker to an output of the ECS It will be used as a telephone speaker Analogue telephone Direct phone line Or PABX central Amplified Loudspeaker Microphone w A E 267 Line tel Set 8 G 1 2 qe n 1 Net Net
27. V to 240 V 50 60 Hz 100 240 VAC 50 60Hz ECS MANUAL Version EN 2 SYSTEM OVERVIEW MACHINE R5134 a e Porta E B A G 1 2 3 4 3 b T 8 G 1 1 The ECS is made of e 6slots of 4 balanced audio channels e 8 0to5 VDC Control inputs either analog or Logical contacts e 2 logic outputs Dry contacts e RS 232 serial interfacing for third party control e Ethernet port RJ 45 TCP IP based for computer management e RS 485 for connecting ATEIS remote devices URC PPM SP e 90Mbytes memory Message player Wave format 16 24 48kHz 16bits e ATEIS NET links to connect several devices Net Port A Net Port B Audio and control connections are made via Euro block connectors on the rear panel of the units The ECS currently is available in ten different configurations AUDIO The ECS unit handles 6 slots of 4 balanced audio channels Each slot can contain either an input board A D converters or an output board D A converters this is a factory hardware configuration You can choose between them and custom your ECS as you want The ECS can contain from 1 to 4 AEC boards Each one has two ADSP 21363 333 MHz SIMD SHARC Core capable of 2 GFLOPS peak performance That s need for the AEC treatments ECS MANUAL Version EN 2 LINKING If more inputs or outputs are required it is possible to digitally link several ECS by using the Ateis Net This one is explained in the Ateis Studio manual CONTROL Depending on your ne
28. Version EN 2 Design in the ECS Regarding the schematic of a point to point system here is the corresponding design which must be created with Ateis Studio software Client 1 EGS input from codec far end signal With two ECS the same configuration is stored into each ECS There are linked together with two audio signals in the both directions J Re a ee a Mn MM M EMEN EE C MM E E EE MN ECS MANUAL Version EN 2 The complete system with two ECS is linked like this ECS 1 ROOM A ROOM B ATEIS 30 ECS MANUAL Version EN 2 AEC WITH ONE DEVICE Schematic The only difference with the previous chapter is that here the both AEC components are in the same ECS ROOM 1 9a i T ECHO b p FF The schematic is the same only the room separation has been moved Hoom A Hoom B N mar AEC ou far end a OUT AEC eng There is an AEC component on the both microphones in order to send a proper signal to the other side The reference signal of the AEC is the signal coming from the other side called far end signal Wk e o o e o LILILITIILIITI Design in the ECS ATEIS 31 ECS MANUAL Version EN 2 Regarding the schematic of a point to point system here is the corresponding design using one ECS device It must be created with Ateis Studio software ECS client 1 microphone NC H lL _ m client 2 loudpseaker client 1 loudpeaker client 2 microphon
29. al electrical shock hazard e Take care for correct polarity when operating the ECS from a DC power source Reversed polarity may cause damage to the unit or the batteries e Avoid placing heavy objects on power cords A damaged power cord is a fire and electrical shock hazard e Do not cut scratch bend twist pull or heat the power cord A damaged power cord is a fire and electrical shock hazard Ask your ATEIS dealer for replacement e Turn off the unit immediately remove the power cord from the AC outlet and consult your ATEIS dealer in any of the following circumstances o Smoke odour or noise getting out of the unit o Foreign objects or liquids get inside the ECS o The unit has been dropped or the shell is damaged o The power cord is damaged If you continue using the ECS fire and electrical shock may result e Do not drop or insert metallic objects or flammable materials into the unit as this may result in fire and electrical shock e Donotremove the ECS s cover as there are exposed parts inside carrying high voltages that may cause an electrical shock Contact your ATEIS dealer if internal inspection maintenance or repair is necessary e Donottry to make any modifications to the ECS This is a potential fire and electrical shock hazard e Avoid the ECS s ventilation slots to be blocked Blocking the ventilation slots is a potential fire hazard ECS MANUAL Version EN 2 CAUTION Caution This sign indicates a potent
30. cted for on line settings FIRMWARE UPDATE Ateis releases regularly firmware updates We invite you to check if there is any new firmware available for your ECS on www ateis com The firmware is included in the ATEIS STUDIO To upgrade your device please follow this procedure Once you are connected with ATEIS STUDIO on the ECS press Update in Device Management Update ECS 1 1 174 192 168 100 6 Normal ECS 1 9 Search Timeout Interval 5 7 S Search By IP E 1133x535 Bb 888 280 The firmwares have an asu file extension HARDWARE DESCRIPTION FRONT PANEL c oe 66 o 1 JOG DIAL DATA The jog dial allows navigation in the menu of the ECS screen 2 ENTER BUTTON This button is used to enter in a menu or to validate a parameter in the ECS screen 3 BACK BUTTON This button is used to go out of a menu or out of a parameter in the ECS screen 4 NET A NET B LED These independent led turn green when data are received or sent on the port 5 CONFIGURABLE AUDIO I O INDICATOR ATEIS 14 M ECS MANUAL Version EN 2 Inside the ECS you have 6 audio slots named A B C D E and F Each of these audios slots receives either 4 audio inputs channels or 4 audio outputs channels When you switch on the ECS you can see which kind of audio card is fitted in each slots e Green LEDs mean INPUTS e Yellow LEDs mean OUTPUTS When a signal passes through an input or an outp
31. default the Pre Threshold and Post Threshold are set as 22dB and 40dB in table microphones If output volume of near end in LES is increased it is essential to decrease Pre Threshold level to suppress the local audio echo feedback ECS MANUAL Version EN 2 Adjust the Pre Processing Adjust the Post Processing Glient 1 TILLLLLLLLL transmission system local echo suppressor CODEC SERVER 343003 far end mear OUT AEC eni BYPASSED jp ym JE Enable the local sources i Mute the remote sources Active the AEC 13 Enable the local sources in the mixer of the local amplification 14 In the both AEC set the AEC coefficient function to Reset 15 In the both AEC set the AEC coefficient function to Perform ATEIS 47 ECS MANUAL Version EN 2 Client 1 1 mer AEC ou aren transmission system local echo Q CODEC suppressor SERVER a k ad far end usus pH A Enable all audio D in the mixer E AEC ajmg ss J P Echo 1 2 3 4 Fs 1 2 2 2 2 WERE 0 0 oo oo dB PEC Coefficient Active the AEC on Perform Peril zh ZAE B E e ae Jalal a ia Reset the AEC coefficient p Hold REF Far End ar 37 rs 16 When you are talking into the microphone the near end volume dB show you input volume The Microphone Threshold should be set to the maximum volume displayed in the Near end volme
32. e With one ECS device the both configuration are mixed in one design The signal coming from the remote room B contain the audio source of the room B without AEC treatment The signal sent from room A has to be amplified and send to the loudspeakers eee ee eS SS SS cc i i i i I I I i i i i I i i i I ROOM B Speaker ECS MANUAL Version EN 2 AEC WITH CODEC SERVER Schematic As internet doesn t provide the multi cast the most of time a multi point conference system use a video codec server Each client of this system sends its audio signal to the video codec server The video codec server mixes all the received signals in one and sends it to each client of the system That means that each the clients receive the audio signal of every client and also its own signal It s done like this because otherwise it would take too much process time to send only each signal to its target In this following schematic you can see that the Client 1 send its signal to the codec server and receive a mixed signal of the client signal 2 3 and 4 including its own signal 1 1 a J 1 2 3 4 1 i V CODEC 1 4 SERVER j mO N e 33002 33002 n3 CO The first using of the AEC is to send a proper signal to the codec server It simulates the local reflections and removes them from the signal to be sent The AEC component modifies the signal of the local microphone by using the far end signal as reference
33. e to put external power every three remote devices or every 300m Note It is recommended to not put more than 8 remote devices on one ECS You can of course use more remote devices but this increase the response time of the devices and you will have to be very careful in the wiring by adding external power supply 4 CONTROL INPUT CONNECTORS Either connects logical input TTL IN dry contact or analogical input 10 k Ohm potentiometer Simply connect the switch or relay or potentiometer between the number 1 and 8 and the G ground The number indicates which control logic channel will be used when you define the action of the control input If you use control Input as analog input You can connect Remote Controllers RAC5 or RAC8 Or a simple variable resistor 10K to the analog control inputs as follows G1234 56 7 8 a e co o D o D D a L i SR i P amp jx 7 A CC Pac JP ta 4 Control Inputs You can reduce the step by putting a 100uF capacitor in parallel across the contact If you use control Input as Logic input The logic In is momentary activate when the contact is closed Simple activation of the TTL inputs can be made like this Gi23 45 6 7 8 16 ECS MANUAL Version EN 2 5 LOGIC OUTPUTS CONNECTORS Output The Contact closes when the Logic Output is active The logic outputs are simple dry contact or relay contact with a common rail The common rail i
34. eds there are several ways of configuring and controlling the ECS Ateis Studio upload configuration On line control Download configuration Live control channels amp volume Adjust settings AMX CRESTRON VITY Once a System is stored into the ECSs memories you can disconnect your PC and run it as a standalone audio network There is a range of control devices built for the system you can operate The ECS integrates perfectly into third party control systems like VITY AMX Audace Crestron etc A dialer is under development SYSTEM CONFIGURATION To tell the machine what to do with audio and control signals there is a Windows based graphical design and operating environment software called Ateis Studio With this all in one program you build up the network design signal processing from a huge library of DSP components and apply control sources for all applications routing paging signal processing networking speaker managing etc The signal path of the ECS is built from virtual elements called Components providing the functionality of simple preamps filters dynamics delays or more complex processors like automatic mixers crossovers or feedback killer Their control windows hold all the buttons faders knobs meters etc to set the desired values The system design and the DSP design are done by drag amp drop ECS MANUAL Version EN 2 There is also the AEC component which is particular to the
35. eeds one AEC channels The reference of these AEC channels is the Far End signal after the AEC treatment After proper adjustment of the level in the input component and in the mixer the volume control of the microphone has to be done with the Near End Volume parameter of the AEC component output to transmission system or codec client 1 signal input from transmission system or codec Far End signal ECS MANUAL Version EN 2 Audio lines If there are audio lines like CD DVD Radio etc in more than the microphones they don t need to pass through an AEC They are directly sent to the transmission and the local amplification through mixer if necessary Far End signal If the transmission system uses a codec server then the Far End signal must be treated on one AEC channel The reference of this AEC channels is the mixed signal of all the local audio sources output of the local mixer After proper adjustment of the level in the input component and in the mixer the volume control of the Far End signal has to be done with the Near End Volume parameter of the AEC component output to transmission system or codec cllent 1 signal input from transmission system or codec Far End signal Local amplification If there is a local amplification then each microphone has to pass through a local echo suppressor before to be sent to the local amplification output to transmission system or codec client
36. ertified EN60849 compliant by the T V DEVELOPMENT Thanks to a development team that includes thirty engineers and to constant investment we are able to respond quickly to the demands of our various markets with specific solutions and cutting edge technology We have distributors in more than fifteen countries in Europe and the Middle East with whom we have carried out major projects In choosing ATEIS you are guaranteed a trustworthy partner that can be counted on for the long term ATEIS Field of applications ATEIS s audio systems have been installed into following markets Railways Subways Airports ECS MANUAL Version EN 2 High raise buildings Hotels Restaurants Shopping center and Malls Theme parks Places of worship Stadia Museums Industrial buildings Industrial plants Commercial buildings CONTACTS ATEIS Europe bv Sydneystraat 42 3047BP ROTTERDAM NETHERLANDS Phone 31 0 10 2088690 Fax 31 0 10 2088699 Web http www ateis europe com Ateis Suisse SA Chemin du D vent 1024 Ecublens Switzerland Phone 41 0 21 881 25 10 Fax 41 0 21 881 25 09 Web http www ateis ch Mail info ateis ch Ateis Middle East Building SEA room 324 DAFZA DUBAI United Arab Emirats Phone 971 4609 1325 24 Fax 971 4609 1326 Web contact http www ateis ae Ateis France 34 avenue de l Europe Z A Font Ratel CLAIX FRANCE Phone 33 0 4 76 99 26 30 Fax 33 0
37. fied Loudspeaker ECS MANUAL Version EN 2 LOCAL ECHO SUPPRESSOR COMPONENT It s shared in two parts pre processing and post processing The Pre Processing limits the level to a threshold above which the gain will be reduced This is to avoid feedback The Post Processing removes the echo below a threshold This is to avoid the residual echo The control window of the Local Suppressor Echo module is opened by a double click on the icon in the DESIGN AREA and appears like this Pre Processing Local Echo Suppressor Parameters Gain Reduction as Display the gain of output volume Pre Processing gt Threshold 40 to 0 When input volume is bigger than Pre Processing Threshold it dB dB will Reduce the volume to Threshold Pre Processing gt Attack Time 1 to 100 The time needed to change the volume from original level to the ms ms expected level Pre Processing gt Release Time 100 to 5k The time needed to change the volume from expected level to the ms ms original level Post Processing gt Threshold 40 to 20 When input volume is smaller than Post Processing Threshold it dB dB will suppress the residue echo sound Post Processing Attack Time 1 to 100 The time needed to change the volume from original level to the ms ms expected level Post Processing Release Time ms 100to5k The time needed to change the volume from expected level to the ms original level ECS MANUAL Version EN 2
38. gnal If you want to use unbalanced signal please connect the Cold pin with the Shield S pin There is a hardware clip operation on input board over 15dBu The excellent sonic performance is being achieved by advanced 24 bit A D and D A converters together with the 48 96 kHz capable audio processing Every single analog audio input can be software defined for five different sensitivities input gain of OdB 12dB 24dB 40dB or 54dB it means the input device have sensitivities of OdB 12dB 24dB 40dB or 54dB and for 48V phantom power operation This can be set for each single channel and each machine independently ECS MANUAL Version EN 2 FRONT ACCES LCD Screen You can get the access to some functions and parameters of the ECS by using the JOG DIAL the ENTER button and the BACK button e The JOG DIAL allows moving in the menu or modifying a parameter e By pushing the ENTER button you enter in a menu or you select a parameter If the screen is on rest the ENTER button displays the root menu e By pushing the BACK button you get out of a menu or you cancel the selection On rest the screen displays the ECS logo Hite i ACOUSTIC Masssssssnnasseaen twee a Click on ENTER to displays the root menu e Device Setting enter in the Device Settings e DSP function enter in the DSP function e Return go back on rest Use the JOG DIAL to move in and click ENTER Device Settings gt ECS MANUA
39. he AEC 2 Inthe both AEC set the AEC coefficient function to Bypass Client 1 transmission system CODEC SERVER 93002 BYPASSED gt a far end E m maar L mixer OUT AEC and P 1 E 2 P 3 P 4 m on 0 0 0 0 0 0 0 0 per a qu m E Byp Byp Be yp AEC Coefficient Bypassed QU c et Bypass Lal 2 D Far End dr TT Volume dB 4 50 E lie p 4 m Near End Volum e dia ECS MANUAL Version EN 2 Adjust signal coming from the other side 3 Make proper adjustment of the input sensitivity of the far end signal coming from the other side on the input component 4 Make proper adjustment of the volume level of the Mixer until the audio from the other side is clear and without feedback noise 5 In the AEC2 make proper adjustment of Background Noise Threshold then To Press Noise reduction Enable button to make noise reduction working Client 1 transmission system Z CODEC SERVER n sar OUT AEC ena BYPASSED BS Auto Mixer 3556 Echo Detect Signal ir T Lat pe T P Ee level adjustment erum ent Bypl E PYP 4 Reset iili Near End Volume dB EY IE mE IS E input sensitivity of Far End signal must be set off line NLP Threshold dB Noise M E B Reduction Enable i G 4 A NR Threshold Adjustment of dB ii noise threshold POverioad 3 ATEIS 44 4 ECS MANUAL Version EN 2
40. hone use the far end signal as reference The AEC channel 2 linked to the local loudspeaker use the microphone signal near end as reference ECS MANUAL Version EN 2 AEC WITH CODEC SERVER AND LOCAL AMPLIFICATION Schematic With the AEC the local reflexions are removed on the signal sent to the codec server If the client wants to hear its own microphone signal by using a loudspeaker and of course an amplifier then in order to avoid the local echo reflexion on the local loudspeaker it is needed to use also the local echo suppressor component please see Local Echo Suppressor chapter for detail about this component Client 1 transmission system local echo o Seen CODEC suppressor far end signa SERVER mixer Design in the ECS Regarding the schematic of a system using a codec server and a local amplification here is the corresponding design which must be created with Ateis Studio software The AEC component provides four independent channels As we need one channel for each microphones signal if there are several local microphones and one for the far end signal the using of one AEC component is enough Client 1 ECS output to codec client 1 signal input from codec far end signal ECS MANUAL Version EN 2 AEC WITH FULL EXAMPLE 2 mics 2 lines local amplification In this example we include 2 microphones and 2 audio sources Radio and CD in a system with codec server
41. ially hazardous situation that can result in moderate or minor personal injury and or property damage e To prevent the unit from falling down and causing personal injury and or property damage avoid installing or mounting the unit in unstable locations e Leave enough space above and below the unit to provide good ventilation of the ECS If the airflow is not adequate the ECS will heat up inside and may cause a fire e Operate the ECS in an environment with a free air temperature of between 0 C and 40 C 32 F and 104 F e Turn off all audio equipment when making any connections to the ECS and make sure to use adequate cables e Do not use benzene thinner or chemicals to clean the ECS Use only a soft dry cloth e Ifthe ECS is moved from a cold place e g overnight in a car to a warmer environment condensation may form inside the unit which may affect performance Allow the ECS to acclimatize before use ECS MANUAL Version EN 2 CONTENTS FOR 6 8 5 Ai Gc 2 Ed S INPS eus 6 WEL ONIE 6 moin EPIS e 6 x9 bsc 6 DEVELOPMENT eT 6 ATES Field OF applICatlONiSucsses ietisiesexe esrb tiu sod na gebaut ies Petex
42. ions of a telephone The component is split in two parts The User Telephone Area allowing you to type a telephone number to start the call and to stop it The Machine status Area which contains several status led showing you the current state of the interface EN TC Transmit TW Telephone im m E EE E eE JOA E E adojodadda SSF er Jada J J A Fi P UurentNumber i Back E Level Last Number Ne S a User Telephone Area Parameters Current Number display Display the current target telephone number Last Number display Display the previous target telephone number ECS MANUAL Version EN 2 Machine Status Area Parameters Light when the ECS is dialling Light when the call is established until the end of the call Light when the telephone is ringing on the other side Light when the telephone line is busy on the other side TC Receive Component The TC receive component allows to see the incoming call with the DTMF Decoder and provides also some controls Here you can adjust the audio level of the incoming caller signal and of the incoming ringing signal that you will hear in the speaker connect to the TC receive output The auto answer function is available allowing the ECS to automatically answer the incoming call A Noise suppression can be activated and also a line echo cancellation in order to reduce the noise and the echo due to the telephone line Fes m Voice Enhance ud eeu
43. nd type the Password e Login e Logout Date gt e Edit click here to set the date e Return go back to Root menu Time e Edit click here to set the time e Return go back to Root menu Device ID Display the device ID It s fixed e Return go back to Root menu ATEIS 22 M a ECS MANUAL Version EN 2 Reset Allows resetting the device e Yes click here to confirm that you want reset the device e Cancel click here to not reset the device and go back to root menu Sensitivity Displays the inputs sensitivity of the ECS inputs You cannot change them here e Return go back to Root menu Saver Here you can choose the saving time e Edit click here to set the saver time e Return go back to Root menu ECS MANUAL Version EN 2 ACOUSTIC ECHO CANCELLATION AEC ACOUSTIC ECHO EXPLANATION In remote conference applications reflected signals caused by acoustic echo between microphones and speakers are normal for example when two people communicate with each other in different places A s voice from the microphone will travel through the speaker in room B and reflect to the microphone It would result in acoustic echo The acoustic echo usually appears when microphones and speakers are in the same space It can decrease the quality of the conversation Echo The main idea of AEC is to simulate the impulse response of the echo path included space reflection and time delay According
44. raphical window by drag en drop operation You can recreate a complex audio system in a simple 1U space machine Forget the addition of machines that required racks and too much long cables in the past Once programmed you can pilot your system through PC VITY Crestron or AMX You can also disconnect the PC and the networked devices run as a standalone system however it can be controlled through a range of controllers logical TTL Input logical TTL Output analogical inputs RS485 network Wall mounted source selectors smart controllers and programmable paging microphones are available ECS MANUAL Version EN 2 INSTALLATION RACK MOUNTING If needed fit the rack mounting brackets to each side of the ECS by using the 6 pcs Phillips M3X screws supplied with the package SITTING The ECS takes only a single 19 rack space and generates little heat itself Consider leaving enough ventilation space above and below the unit Do not mount the ECS directly above heat generating devices like power supplies or power amplifiers ECS cooling is provided by a fan at the left side of the unit Be sure to not to block the air vent holes along the sides of the housing Normal operation is ensured within a temperature range between 0 C and 40 C 32 F to 104 F POWER CONNECTION Connect the AC to the mains supply via a power cord Check your line voltage before plugging in The power supply of the ECS accepts AC voltages ranging from 100
45. s linked to the ground Caution Do not connect voltage 24V to the common rail No voltage is provided Contact rating relays EGE type EDR201A0500 Maximum voltage 100 VDC Maximum switching current 0 5 amps Maximum switching power 10VA logic contro If the RS485 bus is unused then you can easily use the 24V DC output of the ECS to feed 8 LEDS that each have a 2k2 current limiting resistor BA Gi 2 6 RS232 CONNECTOR Connect third party device Crestron AMX VITY to pilot some desired features of your ECS system by using the Ateis Third party protocol 54321 OOOOO OOOO 9876 Note RS232 does support cable lengths up to 15 m ECS MANUAL Version EN 2 ND request to send n c clear to send n c ring indicator n c n c non connected data set ready n c 7 ETHERNET RJ45 CONNECTOR For connecting the ECS in a TCP IP based network or directly to a computer e To load design in a ECS system e To configure ECS system e To monitor ECS system e To stream audio over IP for IP teleconference systems 8 TELEPHONE CONNECTOR There are two connectors The left one is to connect the telephone line The right one is to connect a physical telephone 9 AUDIO INPUT OUTPUT CONNECTOR Input and output cards have different connector colours e BLACK OUTPUT e GREEN INPUT Balanced Audio input or output e S Shield e Hot audio signal e Cold audio si
46. t any time without prior notice in order to keep this manual up to date In case of errors in this manual or not clear process description feel free to submit us mistakes suggestions or questions by sending an email info ateis europe com subject ECS manual corrections This document intends to be a complete manual and we hope that this Help file will provide you all information or answers needed However if you have any questions feel free to contact us PRESENTATION ATEIS is a leading supplier of high quality PA VA audio equipment with distributors and subsidiaries in 23 countries throughout Europe States Middle East and Asia Since 1981 we are manufacturing reliable and high quality loudspeakers amplifiers security matrices and other audio components Our products are manufactured to ISO 9001 standards and when possible meet local requirements With more than twenty years of experience ATEIS has quickly established itself as a leading manufacturer of Public Address Voice Alarm systems and counter intercoms The constant growth of market share in Europe provides confirmation of the quality of ATEIS s commercial and technical approach PRODUCTS The company now offers a full range of sound equipment microphones preamplifiers digital processors digital audio matrixes loud speaker monitoring systems amplifiers IP terminals etc ATEIS designs and manufactures leading products in the voice alarm systems market which have been c
47. to this concept the audio is sampled at the Far End signal AEC applies the sampled signal 180 degrees out of phase with the Near End signal to eliminate it If the simulation is meeting to the real echo signal the echo will be deleted and not affect the voice of the user The following picture aims to eliminate the echo for user B B will not hear her own voices from the speaker Far End Signal Audio from B Audio Transfer to B ATEIS 24 M ECS MANUAL Version EN 2 The purpose of Ateis AEC is for cancellation the acoustic echo in the remote conference applications The audio quality is wide bandwidth up to 24 kHz With the Double Talk Detection the AEC improves the interactive communication It can also support the maximum delay time achieved to 128ms and perform the echo cancellation efficiently Depending of the application different schematic using the AEC can be made They are explained in the following chapters ACOUSTIC ECHO CANCELLATION RULES At first we have to define the signal labeling Signals Definitions Near end signal The audio signal source on which the echo cancellation process is applied Generally it s the microphone Far End signal The audio signal used as reference for the echo cancellation process reference far end AEC ou near end AEC Rules Microphones Every microphone has to use the AEC before to be sent to the transmission through a mixer if necessary Each microphone n
48. ut the corresponding LED will blink 6 ETHERNET LED Lights when the ECS is connected on line to TCP IP network 7 POWER LED Lights when the ECS is switched on REAR PANEL 1 POWER SECTION Insert provided power cable first into ECS then in the wall power connector 2 LINK CONNECTORS If you want to put several ECS in your rack increase the number of input output or remote controllers simply use straight CAT5 cable to connect Net Port B output to the Net Port A input of the next sub ECS Close the loop by connecting the last ECS to the first one Note this is not a network but a link The maximum length between two ECS is 100 meters for a CAT5 cable For bigger distance please choose a CAT 5 Fiber Optic adapter and Fiber Optic cabling 3 RS485 CONNECTORS Here starts the RS485 network connection for PPM and or URC e Power and B A e DATA AandB pa ECS MANUAL Version EN 2 The RS485 port at the rear side of the unit is used for additional units like the URC Universal Remote Controller Note The maximum cable length depends on the type of cable used and should not exceed 300 m with standard CAT5 This restriction is mostly due to supply voltage drops with low wire gauge in longer cable runs and can be obviated by using external power supplies Junction Box or bigger diameter cables However we have seen data cable lengths up to 850m working just fine You will hav

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