ECS MANUAL - Penton Audio USA
Contents
1. ae 12 E OT E t 12 dus gc M 13 iyu i2 8 0 0 M H e e 13 NAI Ses n Z5pe cM s 13 R SEO C TOR NCC A A 13 AVCONTROLINPUT CONECTORS EN 14 5 LOGIG OUTPUTS e ei Ir eh el 15 OIRS2 32 CONNECTOR M 15 H ETHERNET R145 CONNECTOR iacuit nbi nna E TNO 16 8 TELEPHONE CONNECTOR Losisemtastas beo arb isedb uim EnA 16 9 AUDIO INPUT OUTPUT OONNECTOR eene ene nnnnnnnn nnn ene rn sene iniii 16 FRONT ACCES LOD Sree MNT TTTT 17 ACOUSTIC ECHO CANCELLATION AEC ME 22 ACOUSTIC ECHO EXPLANATION EE 22 ACOUSTIC ECHO CANCELLATION R EES oin nir eniinn E ESES 23 Dies d xa DEVI EE 25 SEENEN 25 EIER EE NET 26 ien Kenjda ule 28 SNENA eR CT Tm 28 ATEIS ECS MANUAL Version EN 1 BI EIE TRE RS e 28 AEG AH Ke ege AT E 30 ENEE 30 BI Te EE 32 AEC WITH CODEC SERVER AND LOCAL AMPUHICATION mmn 33 SONEN ate Tm 33 BI Si a Ss Ca sare cess sa erm ces T Tm U 33 AEC WITH FULL EXAMPLE 2 mics 2 lines local amplification eee 34 Seas MI d GENERE RET DN 34 Desin EC ee 35 AEC COMPONENT FUNCTIONS nees EES 36 AEC Coefficient Reset T u 36 Volume GIS OAV ANG CONL Ol EE 36 Nom Gnear Proc2. ON Jess Logic Input e mn 9 Ip xM23456786 AC 100 240V 50 60Hz OFF Audio Out PPM 1 Audio In PPM 1 hield RS 485 RS 485 AUDIO output MAINHN SIDE AUDIO OUT POWER SYSTEM 24 VDC CR MASTER PPM PPM AUDIO RS 485 INPUT MAIN OUT v ECS MANUAL Version EN 1 Connection example for several PPMs with JB PPM mic Audio 2 b PPM mic Audio 3 We need external Ss power supply ATEIS op A ECS MANUAL Version EN 1 Rj45 pin out 12345678 12345678910 IN WM For practically all the wiring you ll need straight CAT5 cable 4 pairs hihi With PPM a straight CAT5 cable 5 pairs is needed provided with PPM Junction Box v RS 485 MAIN IN AUDIO 4 AUDIO SES See OUTPUT LOCAL POWER 4 24 VDC SLAVE PPM MASTER PPM S AUDIO RS 485 INPUT MAIN OUT v nd GND p 24VDC from UAP em Line OUT 24VDC lt from adapter Line IN 24VDC Slave RS 485 A B Master RS 485 A B ATEIS 57 A ECS MANUAL Version EN 1 Connectors AUDIO OUTPUT line out This signal comes from the PPM s microphone to be connected in a ECS input Shielded audio cable RS 485 MAIN IN AUDIO OUT To ECS It is the BUS 485 to be connected into the ECS You can also have access with this JB output to the PPM s microphone signal to be connected to a ECS input 12345678 Pin 1 RS 485 B Pi
3. 0 0 0 0 e GEET yp JEMIE yp JM AEC Coefficient Bypassed rf G EE Far End aa Jus Volume dB CN E La Near End Yolum ei cis ATE S 40 A Adjust signal coming from the other side ECS MANUAL Version EN 1 3 side on the input component 4 In the AEC 2 adjust the volume level End parameter 5 is clear and without feedback noise 6 In the AEC 2 make proper adjustmen Make proper adjustment of the input sensitivity of the far end signal coming from the other of far end signal coming from the other side with Near Make proper adjustment of the volume level of the Mixer until the audio from the other side t of Background Noise Threshold then To Press Noise reduction Enable button to make noise reduction working P Echo Heer tec wir IE al rfe Ie e T Ime Res Bm Signal a AEC level adjustment Coefficient Reset ar Far End Volume dB Near End Volume dB F Near End Level dB NLP F Threshold dB Noise Reduction Enable NR Threshold dB 41 mer am S PP ud EF e mm Client 1 transmission system CODEC SERVER out AEC in BYPASSED EN Input Component pass Bypass I Mute a E Kode T input sensitivity of Far End signal must be set off line Near End Level control of Far End signal level adjustment only for pre settings ATEIS ECS MANUAL Version EN
4. ECS MANUAL Version EN 1 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 Microphone Amplified Loudspeaker 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 functions 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
5. 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 Type the IP address and click ENTER ATEIS is A ECS MANUAL Version EN 1 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 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 gt Type the gateway IP and click ENTER Version 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 19 A ECS MANUAL Version EN 1 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 gt Allows the user management e D click here and type the ID e PX click here and 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 gt e Edit click here to set the time e Return go back to Root menu Device ID gt Display the device ID It s fixed e Return go back to Root menu ATEIS 20 A ECS MANUAL Version EN 1 Reset gt Allows
6. 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 ROOM 2 Je bk ea Ji T b Pa Nt sd T ECHO a T Ba d a gt amp KE This is an example of a standard point to point system XN Room A Room B fa AEC ou In s Eia Le far end far OUT AEC in 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 ATEIS 25 A ECS MANUAL Version EN 1 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 N input from codec far end signal output to codec client 1 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 Lo e
7. The PPM has a Cardio directional microphone capsule and an enhanced audio quality If the PPM SP is linked to an additional keypad V2 the keypad is able to start messages ATEIS 52 A ECS MANUAL Version EN 1 RAC REMOTE ACCESS CONTROL Allow using analogue inputs for selecting a channel among 5 or 8 and setting the volume e RAC5 Wall mounted level and 5 sources selectors e RAC8 Wall mounted level and 8 sources selectors JB JUNCTION BOX Easy chain connection of ECS peripherals URC and PPM using standard CAT5 cables KEY FEATURES e 5 x RJ45 1 Connection to previous JB or ECS bus on the first JB 2 RS485 SIDE for URC connection 3 Easy connection to a Master PPM using the supplied 10 pins cable 4 Connection to first Slave PPM feature not available by now 5 MAIN OUT connection to next JB e 2 internal screw connectors for O dB audio e audio output from PPM microphone Audio Output connect to the Audio In of the ECS e audio input to PPM speaker gt Audio Input connect to the Audio Output of the ECS if needed e 1 input for additional 24V power supply Depending on distance between ECS and PPM URC you will have to put an external power supply e 1 internal switch for PPM Master or Slave selection Slave features are not available for the moment e 1 internal switch for System or Local power supply selection ATEIS 3 A ECS MANUAL Version EN 1 Remote Devices Hardware
8. 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 at 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 international 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 processo
9. Web http www ateis international com Ateis International S A 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 international com Mail info ateis international com 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 international com Ateis France 34 avenue de l Europe Z A Font Ratel CLAIX FRANCE Phone 33 0 4 76 99 26 30 Fax 33 0 476 99 26 31 Web contact http www ateis france fr Ateis Germany Industriestrasse 8 D 63801 Kleinostheim Deutschland Phone 49 0 60 27 97 98 85 Fax 49 0 60 27 97 98 80 Web http www ateis germany de Mail service Qateis germany com 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 NE e Br PEA RRS OD Wu EXrBBUITIEXXAxEH25557 B X610 Fin 021 54495191 92 JESS 021 54495193 Web contact http www ateis com cn ECS MANUAL Version EN 1 HARDWARE DESCRIPTION FRONT PANEL G amp do 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 u
10. 48 96 kHz capable audio processing and the ADSP 21369 400MHz SIMD SHARC Core capable of 2 4 GFLOPS peak performance Every single analogue 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 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 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 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 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 ATEIS ECS
11. Connections Because of the bus 485 and the audio the connection of several PPM is not easy You normally have to create a bus with the RS485 data and power by using junction box daisy chain All audio from PPM must be sent to the LAP Each Junction box has an audio output which is the microphone signal of the PPM connected to the junction box Connect audio output from each junction box to an audio input of the ECS Each Junction box has also an audio input used to get the audio from the ECS and sent it to the PPM speaker Only for the first PPM JB The audio of the first PPM is already on the RJ45 linked to the ECS so you can either use the audio coming from the RJ45 or the audio coming from the JB audio output In summary e 485 daisy chain datas and power go from the ECS to the first JB or PPM then from the first JB PPM to the second etc e Audio star connection Each microphone and or speaker is connected to an input and or output of the ECS For other type of connection Star connection each PPM are directly connected to the ECS we cannot ensure a proper working Note itis advised to not put more than 8 PPMs and or URCs on one ECS It is working with up to 16 PPM but the response time is increased and you will have to use external power supply ATEIS 54 A ECS MANUAL Version EN 1 Connection example for one PPM with JB NET PORT B i A Configurable Audio UO B Configurable Audio I O A POWER
12. L i L i i i i i i i i i al a S822 a eee TT ROOM A ROOM B Speaker ATE S 29 A ECS MANUAL Version EN 1 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 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 Pe e 1 2 3 4 1 34009 340093 n3 a D conec 1 4 SERVER D 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 ATE S 30 A ECS MANUAL Version EN 1 Client 1 Client 1 signal i far end signal from video codec As each client receives it
13. Minimum audio level By 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 Adjust the Pre Processing Adjust the Post Processing Client 1 v TTT transmission system local echo suppressor CODEC 34002 SERVER far end i mixer our AEC d BYPASSED R 2 ZW Auto Mixer a3 3 On Teede P em am eE Ehuble ine s sources IT Imm a Mute the remote sources See E dic ai a ee 43 ECS MANUAL Version EN 1 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 Glient 1 CODEC SERVER um transmission system local echo lient 1 signal suppressor ele far end i ar OUT AEC in Enable all audio Fa in the mixer 23009 em zs T We i dodici n ERLE dB 0 0 0 0 PEC Active the AEC on Perform 15 Eg Coefficient H alts Peri Peri Lai CNN Perform aM ag fe alal Ir Reset the AEC coefficient Far End faz a SA 50 The system is ready ATEIS 44 ECS MANUAL Version EN 1 TELEPHONE CARD wow Line tel Set By linking
14. loudspeaker use the microphone signal far in as reference ATEIS 3 ECS MANUAL Version EN 1 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 CODEC SERVER far end n l ar OUT AEC o 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 ATEIS 33 ECS MANUAL Version EN 1 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 Microphones Every microphone has to use the AEC before to be sent to the
15. 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 cable length is 10 meters between two ECS 3 RS485 CONNECTORS Here starts the RS485 network connection for PPM and or URC e Power and e DATA A and B The RS485 port at the rear side of the unit is used for additional units like the URC Universal Remote Controller or the PPM Programmable Paging Microphone ATEIS 3A ECS MANUAL Version EN 1 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 higer diameter cables However we have seen data cable lengths up to 850m working just fine You will have to put external power every three remote devices PPM or URC or every 300m Note It is recommended to not put more than 8 remote devices PPM and or URC on one ECS You can of course use more remote devices ECS can manage up to 16 PPMs but this increase the response time of the devices and you will have to be very carefull in the wiring by adding external power supply 4 CONTROL INPUT CONECTORS Either connects logical input TTL
16. 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 t ca e CO CD Lr En c2 i B E Ln LJ a S 5 HT 5 Ma E E d 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 ATEIS 21 A ECS MANUAL Version EN 1 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 rt The main idea of AEC is to simulate the impulse response of the echo path included space reflection and time delay According 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 d
17. 1 Adjust local sources 7 Make proper adjustment of the input sensitivity of the local microphones on the input component 8 In the AEC 1 adjust the microphone volume level with Near End parameter 9 In the AEC 1 make proper adjustment of Background Noise Threshold then To Press Noise reduction Enable button to make noise reduction working Input Co nent E Input Compo Overload Thd dB d A E i E S Client 1 Li Lia wae i far end gen ine our AEC p BYPASSED 2 ATE S nA WI D A um cmm i Euan m 1 Echo 8 m ERLE dB za Coefficient Reset Far End Volume dB Near End Volume d6 E 8 Near End Level dB NMear End Level control of mics level xi 1 uu a a 4 NLP NLP Threshold dB Noise Reduction En able NR Threshold dB CODEC SERVER 34002 ECS MANUAL Version EN 1 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
18. AL Version EN 1 LOCAL ECHO SUPPRESSOR COMPONENT d Eg DSP Component m Local Echo Suppressor This component is designed for suppressing local Echo or feedback 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 Time ims Local Echo Suppressor Parameters Gain Reduction aa 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 Attack Time 1to100 The time needed to change the volume from original level to the ms ms expected level Pre Processing Release Time 100 to5k The time needed to change the volume from expected level to the ms ms original level Post Processing 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 1to100 The time needed to change the volume from original level to the ms ms expected level Post Processing Release Time ms 100 to5k The time needed to
19. ATEIS INTERNATIONAL ECS MANUAL Full instruction guide for the Echo Cancellation System Ateis International 3 3 2010 ATEIS ECS MANUAL Version EN 1 CONTENTS dag eoe ET 4 12395 c E 4 Moss Ire C te 4 PRODUCT te 4 DEVELOPMENT orrn c H m 4 ATEIS Field paper Seat 4 Ze PRESENTATION EE 5 INS TALLA TIO P 6 expired ege 7 MA MINE E E E ENEE E EAEE A E TE EN 7 Eet 7 Rid Te T O 7 TEVE ONFE CURA e E E 7 PRESET MANAGEMENT RETE 8 INR Oasis oats P 8 CONNEC TON 8 SP ONE gccte 8 BV Sa e ven tets 8 OFFLINE PROGRAMMING E 8 EE EE ee 9 magie E 11 HARDWARE DESCRIPTION WEE 12 PRONT PANEL ME 12 zb Bee DAT T 12 aS Nd A Ho MTC ee 12 BBC i BUT ON T EE 12 Az Wd bcp MT O 12 5 CONFIGURABLE AUDIO W O WE 12 samo
20. 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 analogue input You can connect Remote Controllers RAC5 or RACS8 Or a simple variable resistor 10K to the analogue control inputs as follows G1 2345678 Oe L n D O a D D ee e r Le au JA 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 ee eS oa o o a n o E P E p F Pi WI ur Lua a a M e ME r 4 Control Inputs pech ATEIS 14 A ECS MANUAL Version EN 1 5 LOGIC OUTPUTS CONNECTORS G 1 2 n 8 SM 7 Kee 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 is 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
21. MANUAL Version EN 1 There is also the AEC component which is particular to the 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 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 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 These Master Presets and Sub Presets residing 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 SYSTEM CONTROL Once a System is stored into the ECSs memories you can disconnect your PC and run it as a standalone audio network You can control all parameters like Channel Level Master Volume etc from assignable control sources or from front knob 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 CONNECTION Audio and control connections are made
22. TEM Lights if the power comes from a local power supply POWER LOCAL Lights if the power comes from ECS READY Lights if the Junction Box is ready to work Connect JB to ECS RS 485 IN PPM s Microphone OUT PPM s Speaker BA OOOOOOOOOOOO Audio UO A TUE Audio I O B 000000000000 o o o o o o o o o o zf zm zm zm rm zm mm rm zm mm mm zm mm mm mm mm mm mm rm mm zm mm mm zm zm mm zm zm zm zm zm d TO RS 485 MAIN IN of the JB LATE D aun a TO RS 485 deet n SIDE of the JB 24V A BG Connect URC to ECS ECS URCI We URC a SERA 24V A BG 24 V A BG 24v A BG ATEIS so A ECS MANUAL Version EN 1 Connect PPM to JB Simply use the CATS 5 pairs provided with your PPM or a standard CAT5 4 pairs Straight from PPM to MASTER PPM of the JB If you use a CAT5 4 pairs you probably will hear some data into the speaker of the PPM This is due to the internal wiring if you do not use speaker simply disconnect it Connect PPM to ECS There is two way to connect one PPM 1 Use a 4 pairs between the ECS and the junction box and then connect the PPM to MASTER PPM of the junction box with a 5 pairs RS 485 IN PPM s Microphone OUT PPM s Speaker B A Configurable Audio UO A Configurable Audio I O B TO RS 485 MAIN IN of the JB 2 Use a CATS5 5 pairs directly between the PPM and the UAP as follow a B A Confi
23. al e Cold audio signal Input and output cards have different connector colours e BLACK OUTPUT e GREEN INPUT 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 ATEIS 16 A ECS MANUAL Version EN 1 FRONT ACCES LCD Screen You can get the access to some function 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 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 MANUAL Version EN 1 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
24. 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 G 1 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 5432 1 OOOOO OOOO 9876 ATEIS 15 A ECS MANUAL Version EN 1 At the rear side of the ECS you also find a DB9f connector for RS232 data communication This port can be used for transparent RS232 data multipoint communication through the network for using with IDA4 or for 3rd party control applications Note RS232 does support cable lengths up to 15 m a DTR data terminal ready nc 7 RIS request to send nc 8 CTS clear to send nc m ring indicator ne n c non connected 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 pilot ECS system e To monitor ECS system 8 TELEPHONE CONNECTOR There are two connectors One is to connect the telephone line The other is to connect a physical telephone allowing you to have a physical interface in more than the software interface 9 AUDIO INPUT OUTPUT CONNECTOR Balanced Audio input or output e S Shield e Hot audio sign
25. change the volume from expected level to the ms original level ATEIS iA ECS MANUAL Version EN 1 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 PPMTouch e RAC5 or RACH e To connect several devices on a ECS It may be helpful to use a Junction Box JB Note It is recommended to not put more than 8 remote devices PPM and or URC on one ECS Putting more will increase the time response of the URCs and or PPMs URC UNIVERSAL REMOTE CONTROL 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 Allow you to have up to 64 buttons with additional Keypad With the ECS Software you can select in which area s outputs the microphone will be heard when you press a PPM s key You can also define pre or post chime when an announcement is done This remote device is connected to the ECS via the RS485 port The PPM has an Omni directional microphone capsule PPM SP stacking paging Same features as the PPM and a small memory 2min audio in the PPM SP allow storing the message if the PPM SP cannot rout the message to the desired zone When the zone becomes available the message will be played
26. e en e e e www www www www www ww e e e e e e e e e ee eee ATEIS 26 A ECS MANUAL Version EN 1 The complete system with two ECS is linked like this ECS 1 ROOM A ROOM B ATEIS 27 A ECS MANUAL Version EN 1 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 ar Zei ECHO kr IF The schematic is the same only the room separation has been moved Hoom A Hoom B i far OUT AEC in 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 Design in the ECS 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 ATEIS 28 A ECS MANUAL Version EN 1 ECS client 1 microphone NC 1 client 2 loudpseaker client 1 loudpeaker client 2 microphone 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 sj LI L d i L LI d L i L i i i i i L i i LI L i
27. ected This led lit when an audio signal is detected P rF P 1 2 3 4 ua pe pe pere ps Coffee Pow In Peri Pert peri Peri 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 e Hold hold the parameters of the echo coefficient xui Reset Button Reset the echo cancellation on the channel gu net dB E T UU PITE Ee 8 4 x Far End Vu meter Audio volume of the Far end audio signal Volume dB i d Near End Vu meter Audio volume of the Near end audio signal Vehmet db Volume dB dB Near End Level 90 to 20 dB volume adjustment of the near end audio signal ear End Selector NonLinear Process Soft The purpose is to suppress the remain echo in Medium complex environment Aggressive Off es m Ka th i D It offers four functions off NLP function off soft weak intensity of remain a TI P NLP Threshold dB echo suppression medium medium intensity of remain echo suppression Noise Reduction Enable aggressive aggressive intensity of remain echo suppression m NR Threshold dB Noise Reduction Enable ATEIS 38 ECS MANUAL Version EN 1 AEC SETUP PROCEDURE The design must be stored
28. eleted 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 22 A ECS MANUAL Version EN 1 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 Far In 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 AEC Rules Microphones Every microphone has to use the AEC before to be sent to the transmission through a mixer if necessary Each microphone needs 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 E
29. ess NEP EE 37 AEC COMPONENT PARAMIETERS rtis oua EF uE ecu na Mets renine iea aE 38 PEC SETUP PROCEDURE m P 39 zz gi E 45 SS CU i eR TROU T m 45 BICI M la Kan a P RT TEE 46 TELEPHONE CARD COMPONENT geet 46 TC Irans mit EK EEN 46 TC Receive COMPONENT EE 48 LOCAL ECHO SUPPRESSOR ees secant ocaecesce Socce PURSE QUIM siuiuR ME qiu ano P re Ie uai ag RENDER EuS D LOn EUER MM Sd 49 SVS US sapere ees HH C eee 50 B i MN zi Gs Pm 50 LOCAL ECHO SUPPRESSOR COMPONENT RE 51 ADDITIONALDEVIGES FOR ECS SYSTEM EN 52 URC UNIVERSAL SEENEN 52 22 MT 52 PPMP SLAC ie DOS E 52 RAC REMOTE ACCESS CONTROL EE 53 JE CUNCTION BOK n M 53 Remote Devices Hardware Connections ccccseccsscceecceecceeeeeceeeceeeeeneceneceneceneenseeeeeseeeneeeeesgeees 54 Connection example for one PPM with JB opas o geed eegne 55 Connection example for several PPMs with IB 56 Fe DIMOU RR RED Em 57 JUNON BOX EE 57 Gentili cc O non 59 Connect WIRE tO ECS WII E 59 CONNECT URCO EC dtm 59 OMIM CE TV e E 60 Connect PPMTO ECS ae T 60 one T T 60 ATEIS 3 ECS MANUAL Version EN 1 INTRODUCTION
30. gurable Audio I O A Ss Audio I O e E alt 8 8 el T s s s i si Connect RAC G 12 34 567 8 9 10 LJ WE ATE S 60 A
31. 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 far AEC ou Ini Lat e transmission system d CODEC SERVER far end our AEC i This procedure is decrypted on several pages but the idea is simple Turn off local amplification Bypass the AEC Adjust signal coming from the other side Adjust local sources Adjust the local echo suppressors of the local sources Active the AEC Turn off local amplification 1 Ifyou 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 ATE S 30 A ECS MANUAL Version EN 1 Client 1 1 K a AEC ou local echo suppressor transmission system tz STI CODEC SERVER 23002 Mute the local sources 7 3 7 7 m i E LA d Bypass the AEC 2 In the both AEC set the AEC coefficient function to Bypass Client 1 1 oi Fi transmission system O CODEC g I SERVER C far end je OUT AEC ij BYPASSED 7 2 m AEC S M Lea E z SC P 4 res ep mp m a 0 0 0 0
32. lable 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 J p Line Echo Cancellation Machine Status Area Parameters Caller signals Mute Button led Mute the caller signal Caller signals Level 15 to 12 dB Level control of the caller signal Ring signals Mute Button led Mute the ring signal Ring signals Level 15 to 12 dB Level control of the ring signal Auto answer i Active the auto answer function by selecting after how many rings the ECS will answer After 1 ring After 2 rings After 3 rings After 4 rings After 5 rings After 6 rings Noise suppression Button Active the noise suppression on the caller signal DTMF decoder Button led Enable the DTMF decoder enabled DTMF using Light when a DTMF signal is detected DTME history Display the last DTMF signal received Line echo cancellation Active the echo cancellation on the line ATEIS ag IA ECS MANUAL Version EN 1 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 loudspeake
33. 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 microphone 1 d fa AEC ou output to E transmission mixer missi microphone A pum system transmission system a A au WICH RK P pp LI line 1 Radio ol line 2 CD GEZ suppressor mixer local amplification local echo suppressor Far End signal eg coming from transmission system 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 ATE S 34 A ECS MANUAL Version EN 1 Design in the ECS Regarding the complete schematic above 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 microphone
34. n 2 RS 485 A Pin 3 Line in WIE Pin4 24Vdc l Pin 5 Ground Pin 6 Line in l Pin 7 Line out Pin 8 Line out RS 485 SIDE BUS 485 to connect URC 12345678 Pin 1 RS 485 B Pin 2 RS 485 A l l Pin 3 NC Pin 4 24Vdc l Pin 5 Ground Lal Pin 6 8 NC LOCAL POWER 24VDC To gives power to the JB through a local power supply MASTER PPM CATS 5 pairs To connect the PPM 12345678910 Pin 1 Slave RS 485 A Pin 2 24Vdc Pin 3 Master RS 485 Pin 4 Master RS 485 A Pin 5 Line out PPM Mic Pin 6 Line out PPM Mic Pin 7 Line in PPm speak Pin 8 Line in PPm speak Pin 9 Ground Pin10 Slave RS 485 B RS 485 MAIN OUT To next Master To connect another JB daisy chain 12345678 mum Pin 1 RS 485 B Pin 2 RS 485 A Pin 3 NC INN Pin 4 24Vdc Pin 5 Ground EM WE Pin 6 8 NC ATEIS ss A ECS MANUAL Version EN 1 AUDIO INPUT To send audio signal from a ECS output to the PPM speaker Shielded audio cable SLAVE PPM CATS 5 pairs NOT AVAILABLE FOR THE MOMENT to connect Slave PPM E Pin 1 Slave RS 485 B Pin 2 Slave RS 485 A Pin 3 Line in Pin 4 24Vdc Pin 5 Ground Pin 6 Line in Pin 7 Line out Pin 8 Line out Internal Switches POWER S W To choose between local power supply or the ECS power supply Master Slave NOT AVAILABLE FOR THE MOMENT chose if the PPM connected to this JB is a Master or a Slave LEDs POWER SYS
35. nance or repair is necessary e Do not try to make any modifications to the ECS This is a potential fire and electrical shock hazard ATEIS ECS MANUAL Version EN 1 e Avoid the ECS s ventilation slots to be blocked Blocking the ventilation slots is a potential fire hazard CAUTION Caution This sign indicates a potentially 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 fthe 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 ATEIS 10 A CONTACTS ECS MANUAL Version EN 1 ATEIS Europe bv Sydneystraat 42 3047BP ROTTERDAM NETHERLANDS Phone 31 0 10 2088690 Fax 31 0 10 2088699
36. nd Volume parameter of the AEC component fa AEC ou a OUIDUL to transmission system or codec client 1 signal el SEI input from transmission system or codec Far End signal ATEIS 23 A ECS MANUAL Version EN 1 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 use 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 client 1 signal far end e em far input from transmission system or codec K 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 1 signal local echo suppressor input from transmission system or codec Far End signal ATEIS 24 A ECS MANUAL Version EN 1 AEC WITH TWO DEVICES Schematic
37. ng 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 graphical 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 mikes are available ECS MANUAL Version EN 1 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
38. nual 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 potential 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 Do not remove 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 mainte
39. 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 V to 240 V 50 60 Hz The ECS can also be powered up from a 24 VDC supply i e backup battery 100 240 VAC 50 60Hz ATEIS ECS MANUAL Version EN 1 SYSTEM OVERVIEW MACHINE Kai Gei GHE DL eh EH2 1 Gen we The ECS is made of e 6slots of 4 audio channels 8 0 to 5 VDC Control inputs either analogue or Logical contacts 2 logic outputs Dry contacts RS 232 serial interfacing for third party control Ethernet port RJ 45 TCP IP based RS 485 for connecting ATEIS remote devices URC PPM SP 90 Mbytes memory Message player Wave format 16 24 48kHz 16bits Devices linked using ATEIS NET One microcontroller and one DSP for standalone operation AUDIO The ECS unit handles 6 slots of 4 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 excellent sonic performance is being achieved by the advanced 24 bit A D and D A converters together with the
40. r very uncomfortable called Larsen 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 use 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 Amplified NI K udspeaker AT ATEIS 49 AN ECS MANUAL Version EN 1 Schematic To avoid the 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 residual echoes and the Post Processing part take care of the feedback 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 Amplified Loudspeaker ATE S so A ECS MANU
41. respectively the Lopez far end and near end volume level If you want to modify the volume of a source near end inputs then you have ET to use the Near End Level knobs in the AEC component When the system is NU properly adjusted it is not advised to change the volume by using another Near End parameter than this one Level ATEIS 36 AN ECS MANUAL Version EN 1 Non Linear Process NLP The microphone captures the sound coming from the loudspeaker and also the speaker s voice Threshold If on the microphone capsule the sound pressure level of the loudspeaker 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 All you have to do is to choose the type of the non linear process soft medium aggressive or off The NLP threshold parameter is not available the threshold is now automatically set ATE S 37 A ECS MANUAL Version EN 1 AEC COMPONENT PARAMETERS d Je DSP Component 1 P ac AEC This component is used to avoid reflected signals caused by acoustic echo between microphones and speakers in remote conference applications TYY 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 Echo Detect e This led lit when an echo is det
42. rs digital audio matrixes loud speaker monitoring systems amplifiers etc ATEIS designs and manufactures leading products in the voice alarm systems market which have been certified 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 ATEIS ECS MANUAL Version EN 1 Airports High raise buildings Hotels Restaurants Shopping center and Malls Theme parks Places of worship Stadia Museums Industrial buildings Industrial plants Commercial buildings 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 Conference application 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 requiri
43. s 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 far 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 far end A ar OUT AEC in ATEIS 3 A ECS MANUAL Version EN 1 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 N output to codec client 1 signal far end far OUT AEC in 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 microphone use the far end signal as reference The AEC channel 2 linked to the local
44. s 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 35 A ECS MANUAL Version EN 1 r r r 1 2 3 4 AECCOMPONENTFUNCTIONS S SS a e aai me e a The AEC component provides four fully independent channels il ge ge ge ve ERLE Poo foo Poo Ww Qo 0 0 0 0 0 0 0 0 On the component each channel has one input called far in one 0 D S AFG 5 le s output and one reference called far end The far end signal will be SM EA EES EN removed of the far in signal in order to send a proper signal to the Lm Ty 7 e other room Far End Cl Co c Volume dB T uuu i Near End HEES BEES Volume dB YT far in1 pl output 1 ME far in 2 output 2 m far in 3 output 3 dB far in 4 output 4 i d NLP MLF Threshold dB Noise Reduction Enable NR Jg Threshold 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 oo course you can deactivate it on Off The reset button is used to reset the AEC coefficient Volume display and control The far end volume and near end volume vu meters display
45. sed to go out of a menu or out of a parameter in the ECS screen 4 NET A NET B LED These independent led Light when data are received or sent on the port 5 CONFIGURABLE AUDIO I O 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 output the corresponding LED will blink 6 ETHERNET LED Light when the ECS is connected on line to TCP IP network 7 POWER LED ATEIS 12 Aw ECS MANUAL Version EN 1 Lights when the ECS is switched on Error status Problem on the Ateis Net Normal status Standby status Ihe ECS has no design inside The design inside the ECS does not match with the physical installation If the link led is off The ECS has no input link Power The LED grows The LED grows LED bright in green bright in red The LED flicks in red and green REAR PANEL 1 POWER SECTION Insert provided power cable first into ECS then in the wall power connector Power switch e engaged ON e O engaged OFF 2 LINK CONNECTORS If you want to put several ECS in your rack increase the number of input
46. status led showing you the current state of the interface ATEIS 46 A ECS MANUAL Version EN 1 aj TC Transmit 1 1 mi d F User Telephone Area Parameters Send Button Start the telephone call Finish button Stop the telephone call Current Number display Display the current target telephone number Last Number display Display the previous target telephone number Back Not available ReDail Button Re start the last telephone call Flash ees Not available Machine Status Area Parameters Dialling led Light when the call is established until the end of the call Connect Ringing led Light when the telephone is ringing on the other side MCU Not available e Ready ld Light when the telephone line is properly connected to the ECS Fault led Light when the telephone line is not connected to the ECS Light when the telephone line is busy on the other side ded Light when you pick up the telephone if there is one led 15 to 12 dB Control the volume level of the microphone ATEIS 47 A ECS MANUAL Version EN 1 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 avai
47. 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 dedicated components in Ateis Studio software which are TC transmit and TC receive 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 It s due to its narrow bandwidth we simulate The sound to be up to 6 6 kHz for comfortable listening But there is a distortion resulting in a metallic sound You can put a low pass filer to cut above 3 5kHz that will help Schematic e Connect the direct telephone line or a line coming from a PABX central to the Line RJ11 connector of the ECS e noption you can also connect a analogue 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 asa telephone speaker Analogue telephone Direct phone line Or PABX central Amplified Loudspeaker Microphone SENS o RS232 San C iD d i 4 N et j B 1 2 3 4 58 7 8 60 2 GH en c Jur PS c Re Tine s I RSAB5 4 te Contro input H Output 4 Configurable Audio I O Configurable Audio I O Configurable Audio I O
48. via Euro block connectors on the rear panel of the units COMPONENTS Huge library with audio tools for all applications routing paging signal processing networking speaker managing etc SYSTEM e System design by drag amp drop e DSP design by drag amp drop from component library e Changeable appearance of the control elements OFFLINE PROGRAMMING Design and editing of DSP designs ATEIS ECS MANUAL Version EN 1 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 A 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 Ma
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