Yamaha MY4-AEC Owner's Manual
Contents
1. Yamaha YAMAHA HEH 48 ASK 5 YAMAHA 22 48 TEVA TA o PAE RESSCCMHOET MY4 AEC Owner s Manual 185 186 4 Owner s Manual MY4 AEC Owner s Manual 187 Important Notice Guarantee Information for customers in European Economic Area EEA and Switzerland Important Notice Guarantee Information for customers in EEA and Switzerland For detailed guarantee information about this Yamaha product and Pan EEA and Switzerland warranty service please either visit the website address below Printable file is available at our website or contact the Yamaha representative office for your country EEA European Economic Area Wichtiger Hinweis Garantie Information f r Kunden in der EWR und der Schweiz F r n here Garantie Information ber dieses Produkt von Yamaha2. AN CAUTION Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others or damage to the device or other property These precautions include but are not limited to the following Be sure to properly ground the host device to prevent electrical shock and or malfunction Do not touch the metallic leads pins of the circuit board when handling the card The pins are sharp and may cause hand cuts Wear a pair of heavy gloves during installation to avoid scratching or cutting your hands on sharp edges Avoid touching exposed connectors and metal parts to minimize the possibility of bad connections Drain all static electricity from your clothing and body before handling the card Static electricity can damage the card Touch an exposed metal part of the host device or other grounded object beforehand Do not drop the card or subject it to physical shock as this can result in breakage and or malfunction Do not drop screws or other small parts inside the card If power is applied while screws or similar metal objects are loose inside the unit the card may malfunction or be damaged If you cannot retrieve dropped objects yourself refer the problem to qualified Yamaha service personnel Yamaha cannot be held responsible for damage caused by improper use or modifications to the device or data that is lost or destroyed
3. for transmission to remote Office X Mix the To Far end 3 and To Far end 4 outputs from the AEC component and connect the mixed output to To Office Y for transmission to remote Office Y When multiple speakers are being used in the same meeting room be sure to connect the mixed signal to them in parallel AEC may not function properly if the output balance between the speakers changes Nearend voice 1 Matrix Moxer 4 Input Op m Binz 2 MY4 AEC Owner s Manual 23 Inthe Matrix Router section of the AEC component editor select one or more of the From Far end signals to be used as the reference for each AEC channel 1 4 The On buttons in the Matrix Router section can be used to select microphones and locations for each meeting room For this example the Matrix Router is set as shown below With these settings it is possible to simultaneously hold independent conferences between the small meeting room and Office X Far end A using AEC channels 1 and 2 and between the medium meeting room and Office Y Far end B using AEC channels 3 and 4 From Far end A From Far end 24 MY4 AEC Owner s Manual Appendix Specifications GENERAL SPECIFICATIONS Sampling Frequency 44 1 2 10 to 48 2 6 88 2kHz 10 to 96 2 6 Power requirements 395mA 3 3V 295 Temperatu
4. gt NR Far end Voice C From Far end D NR Far end Voice D Matrix Router lt Li 1 Li 1 A 1 1 Near end Mic 4 To Far end 4 4 4 1 i i FBS Near end Voice 4 Pid 1 Near end Mic 3 To Far end 3 NR Je 4 AEC pog FBS Near end Voice 3 iy I Near end Mic 2 i FBS Near end Voice 2 lt Near end Mic 1 FBS Near end Voice 1 To Far end 1 NR gt Reference signal FBS Feedback suppressor Noise reduction MY4 AEC Owner s Manual 7 The Connectors and Their Functions ACOUSTIC ECHO CANCELLER AES EBU Dee DUNS O o JETES o O 5 o 0 0 0 0 G3 0 6 LAB SI SS LAA WSF SI SIS YAMAH MODEL MYA AEC MADE JAPAN AES EBU IN and OUT Connectors These connectors support four channels of AES EBU format digital audio input and output to and from the host DME64N 24N unit but those signals are not directly routed via the MY4 AEC processing section Signals from the host s analog or digital inputs must be routed to the MY4 AEC card s AEC processing
5. Small Meeting Room Near End Speaker 1 Microphone 1 e Office X Remote Far End Teleconferencing System ES Speaker 2 Microphone 2 OUT Analog Network IN OUT Analog DME24N IN Analog IN OUT MY4 AEC IN Analog Analog TIl Teleconferencing Office Y system Remote Far End Microphone 1 Network OUT Analog af Speaker 1 Speaker 2 Medium Meeting Room Near End Microphone 2 22 MY4 AEC Owner s Manual Make the required virtual connections the DME Designer configuration window Connect the signal from the microphones in the small and medium local meeting rooms Conf S Mic1 2 and Conf Mic1 2 and the audio signal from the remote locations From Office X and From Office Y to the appropriate inputs of the AEC component Mix the Near end Voice 1 and Near end Voice 2 outputs and the Far end Voice A outputs from the AEC component and connect the mixed output in parallel to the small meeting room speakers Conf S SP 1 and SP 2 Mix the Near end Voice 3 and Near end Voice 4 outputs and the Far end Voice outputs from the AEC component and connect the mixed output in parallel to the medium meeting room speakers Conf M SP 1 and SP 2 Mix the To Far end 1 and To Far end 2 outputs from the AEC component and connect the mixed output to To Office X
6. Minh City Vietnam 84 8 3818 1122 OTHER ASIAN COUNTRIES Yamaha Corporation Sales amp Marketing Division Nakazawa cho 10 1 Naka ku Hama matsu Japan 430 8650 Tel 81 53 460 2312 OCEANIA AUSTRALIA Yamaha Music Australia Pty Ltd Level 1 99 Queensbridge Street South bank Victoria 3006 Australia Tel 3 9693 5111 COUNTRIES AND TRUST TERRITORIES IN PACIFIC OCEAN Yamaha Corporation Asia Pacific Music Marketing Group Nakazawa cho 10 1 Naka ku Hama matsu Japan 430 8650 Tel 81 53 460 2313 PA36 HEAD OFFICEYamaha Corporation Audio Products Sales and Marketing Division Nakazawa cho 10 1 Naka ku Hamamatsu Japan 430 8650 MY4 AEC Owner s Manual 191 YAMAHA Yamaha Pro Audio global web site http www yamahaproaudio com Yamaha Manual Library http www yamaha co jp manual C S G PA Development Division 2011 2013 Yamaha Corporation 312YJTO BO Printed in Japan WW75420
7. adjust the input gain of each channel Adjust the DME24N HA Gain while watching the Mic In meters in the AEC component editor so that the yellow segment lights only occasionally NOTE AEC may not function properly if the gain is set too high Internal Head Ame OME24N HR RD MY4 AEC Owner s Manual 15 5 Open the Oscillator component editor set the Wave Form type to Pink and engage the Output section On button Go back to the AEC component editor and while watching the Ref In meter adjust the oscillator output level so that the yellow segment lights only occasionally 59 Oscillator Oscillator Mono 16664 lt 2714H gt 16 MY4 AEC Owner s Manual Check that the ERL Echo Return Loss meter the AEC component is moving If this meter is moving over a wide range it means that a large portion of the pink noise being output from the speaker is being picked up by the corresponding microphone and therefore a large amount of echo will be transmitted to the remote location Carefully adjust the positions and pickup directions of the four microphones in relation to the speakers in order to reduce this echo level as much as possible The more you can reduce the echo at this stage the more effective the AEC will be NOTE f the local meeting room is very reflective or reverberant it may be difficult to reduce the echo level sufficiently by simply repositioning the microphones and speakers In s
8. amp YAMAHA ACOUSTIC ECHO CANCELLER CARD MY4 AEC Owner s Manual Bedienungsanleitung Mode d emploi Manual de instrucciones Manuale di istruzioni FUR FCC INFORMATION U S A 1 IMPORTANT NOTICE DO NOT MODIFY THIS UNIT This product when installed as indicated in the instructions contained in this manual meets FCC requirements Modifications not expressly approved by Yamaha may void your authority granted by the FCC to use the product 2 IMPORTANT When connecting this product to accessories and or another product use only high quality shielded cables Cable s supplied with this product MUST be used Follow all installation instructions Failure to follow instructions could void your FCC authorization to use this product in the USA 3 NOTE This product has been tested and found to comply with the requirements listed in FCC Regulations Part 15 for Class B digital devices Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices This equipment generates uses radio frequencies and if not installed and used according to the instructions found in the users manual may cause interference harmful to the operation of other electronic devices Compliance with FCC regulations does not guara
9. bundle and fasten the cables NOTE Do not tin plate with solder the exposed end f cables will be frequently connected and 1 6 mm or less disconnected as in the case of a portable installation approx we recommend that you use ferrules with insulation 7 mm sleeves Use a ferrule whose conductor portion has an ALA external diameter of 1 6 mm or less and a length of uu approximately 7 mm such as the Al0 5 6WH made by the Phoenik Contact corporation 10 4 Owner s Manual 1 Loosen terminal screws 2 Insert cables Loosen als 3 Slotted Screwdriver Terminal Screw 3 Securely tighten terminal screws Pull the cables not too strongly to confirm that they are securely NOTE connected A slotted screwdriver with a blade width of about 3 millimeters is recommended 3mm or less mm MY4 AEC Owner s Manual 11 4 Bundle the cables and the 5 Insert the Euroblock plug into Euroblock tab using the the AES EBU IN or OUT supplied cable tie connector of the MY4 AEC NOTE Trim any excess part of the cable tie as necessary 12 MY4 AEC Owner s Manual Basic Connection and Setup Example 1 Teleconferencing with a Remote Location This is an example of a teleconferencing system set up to allow multiple participants to hold conferences with a remote location Office Preparation The first step is to make the basic local near end co
10. k d Yamaha k pviseleti irod val EGT Eur pai Gazdas gi T rs g Oluline m rkus Garantiiteave Euroopa Majanduspiirkonna ja veitsi klientidele T psema teabe saamiseks selle Yamaha toote garantii ning kogu Euroopa Majanduspiirkonna ja veitsi garantiiteeninduse kohta k lastage palun veebisaiti allj rgneval aadressil meie saidil on saadaval prinditav fail v i p rduge Teie regiooni Yamaha esinduse poole EMP Euroopa Majanduspiirkond Svar gs pazi ojums garantijas inform cija klientiem EEZ un v Lai sa emtu detaliz tu garantijas inform ciju par o Yamaha produktu k ar garantijas apkalpo anu EEZ un veic l dzu apmekl jiet zem k nor d to t mek a vietnes adresi t mek a vietn ir pieejams druk jams fails vai sazinieties ar j su valsti apkalpojo o Yamaha p rst vniec bu EEZ Eiropas Ekonomikas zona nformacija del garantijos pirk jams ir veicarijoje reikia i samios informacijos apie Yamaha produkt ir jo technin prie i r visoje EEE ir veicarijoje apsilankykite m s svetain je toliau nurodytu adresu svetain je yra spausdintinas failas arba kreipkit s Yamaha atstovyb savo aliai EEE Europos ekonomin erdv D le it upozornenie Inform cie o z ruke pre z kazn kov v EHP a vaj iarsku Podrobn inform cie o z ruke t kaj ce sa tohto produktu od spolo nosti Yamaha a garan nom servise v
11. please contact your local authorities or dealer and ask for the correct method of disposal European models Purchaser User Information specified in EN55103 1 and EN55103 2 Conforms to Environments E1 E2 and E4 4 4 Owner s Manual Introduction Thank you for choosing the Yamaha MY4 AEC The MY4 AEC is an acoustic echo canceller card designed for use with the DME64N 24N Digital Mixing Engines that can effectively reduce troublesome acoustic echoes due to secondary pickup of speaker output and reflections from room surfaces in teleconferencing situations It is also capable of reducing feedback as well as ambient noise from air conditioning and fans This technology enables noise free high intelligibility teleconferencing in just about any environment Four AES EBU input and output channels are provided all with built in sample rate conversion capability The MY4 AEC can also connect to digital audio devices that do not allow word clock synchronization Installation Refer to the DME64N 24N owner s manual for installation details The screws on the left and right sides of the card also ground earth the device so be sure to tighten them securely Supplied Items Owner s Manual this document 3 pin Euroblock plugs x 4 Cable ties x 4 MY4 AEC Owner s Manual 5 Principle of Operation How Acoustic Echo and Noise are Reduced Acoustic echo occurs in a teleconferencing system when the sound fr
12. 1 Office X 4 Speaker 2 d iem Microphone 2 Analog Microphone 3 P MY4 AEC Microphone 4 IN Analog gt IN OUT Analog Network 1 Teleconferencing system 18 MY4 AEC Owner s Manual Make the required virtual connections the DME Designer configuration window Connect the signal from the four local microphones Mic1 Mic4 and the audio signal from the remote location From Office X to the appropriate inputs of the AEC component Mix the Near end Voice 1 Near end Voice 4 outputs and the Far end Voice outputs from the AEC component and connect the mixed output in parallel to the meeting room speakers SP 1 and SP 2 Mix the To Far end 1 To Far end 4 outputs from the AEC component and connect the mixed output to To Office X for transmission to the remote location When multiple speakers are being used in the local meeting room be sure to connect the mixed signal to them in parallel AEC may not function properly if the output balance between the speakers changes Analog Input Ba Matrix Mixer Analog Output Analog MY4 AEC Owner s Manual 19 3 Adjust the DME Designer AEC component editor parameters so that acoustic echo is effectively cancelled from the audio signal sent to Office X Begin by checking that the connection with Office X is working properly and that conversation is
13. ATIN AMERICAN COUNTRIES CARIBBEAN COUNTRIES Yamaha Music Latin America S A Torre Banco General Piso No 7 Mar bella Calle 47 y Aquilino de la Guardia Ciudad de Panama Republica de Pan ama Tel 507 269 5311 EUROPE THE UNITED KINGDOM IRE LAND Yamaha Music Europe GmbH UK Sherbourne Drive Tilbrook Milton Keynes MK7 8BL U K Tel 01908 366700 GERMANY Yamaha Music Europe GmbH SiemensstraBe 22 34 25462 Rellingen Germany Tel 04101 3030 SWITZERLAND LIECHTEN STEIN Yamaha Music Europe GmbH Branch Switzerland in Z rich Seefeldstrasse 94 8008 Z rich Switzer land Tel 044 387 8080 AUSTRIA BULGARIA Yamaha Music Europe GmbH Branch Austria Schleiergasse 20 A 1100 Wien Austria Tel 01 60203900 CZECH REPUBLIC HUNGARY ROMANIA SLOVAKIA SLOVE NIA Yamaha Music Europe GmbH Branch Austria Central Eastern Europe Office Schleiergasse 20 A 1100 Wien Austria Tel 01 60203900 POLAND LITHUANIA LATVIA ESTONIA Yamaha Music Europe GmbH Branch Poland Office ul Wrotkowa 14 02 553 Warsaw Poland Tel 022 500 2925 MALTA Olimpus Music Ltd The Emporium Level 3 St Louis Street Msida MSD06 Tel 02133 2144 NETHERLANDS BELGIUM LUX EMBOURG Yamaha Music Europe Branch Ben elux Clarissenhof 5 b 4133 AB Vianen Netherlands Tel 0347 358 040 FRANCE Yamaha Music Europe 7 Ambroise Croizat Zone d activites Pariest 77183 Croissy Beaubourg France Tel 01 64 61 4000 ITALY Yamaha Mus
14. EHP a vaj iarsku n jdete na webovej str nke uvedenej ni ie na na ej webovej str nke je k dispoz cii s bor na tla alebo sa obr tte na z stupcu spolo nosti Yamaha vo svojej krajine EHP Eur psky hospod rsky priestor Pomembno obvestilo Informacije o garanciji za kupce v EGP in vici Za podrobnej e informacije o tem Yamahinem izdelku ter garancijskem servisu v celotnem EGP in vici obi ite spletno mesto ki je navedeno spodaj natisljiva datoteka je na voljo na na em spletnem mestu ali se obrnite na Yamahinega predstavnika v svoji dr avi EGP Evropski gospodarski prostor Ha Yamaha Yamaha Notificare important Informa ii despre garantie pentru clien ii din SEE si Elve ia Pentru informa ii detaliate privind acest produs Yamaha si serviciu
15. R COUNTRIES Yamaha Music Gulf FZE Office JAFZA 16 512 P O Box 17328 Jebel Ali Dubai U A E Tel 971 4 881 5868 ASIA THE PEOPLE S REPUBLIC OF CHINA Yamaha Music amp Electronics China Co Ltd 2F Yunhedasha 1818 Xinzha lu Jin gan qu Shanghai China Tel 021 6247 2211 INDIA Yamaha Music India Pvt Ltd Spazedge building Ground Floor Tower A Sector 47 Gurgaon Sohna Road Gurgaon Haryana India Tel 0124 485 3300 INDONESIA PT Yamaha Musik Indonesia Dis tributor Yamaha Music Center Bldg Jalan Jend Gatot Subroto Kav 4 Jakarta 12930 Indonesia Tel 021 520 2577 KOREA Yamaha Music Korea Ltd 8F 9F Dongsung Bldg 158 9 Samsung Dong Kangnam Gu Seoul Korea Tel 02 3467 3300 MALAYSIA Yamaha Music Malaysia Sdn Bhd No 8 Jalan Perbandaran Kelana Jaya 47301 Petaling Jaya Selangor Malaysia Tel 03 78030900 SINGAPORE Yamaha Music Asia Private Lim ited Block 202 Hougang Street 21 02 00 Singapore 530202 Singapore Tel 65 6747 4374 TAIWAN Yamaha Music amp Electronics Tai wan Co Ltd 3F No 6 Section 2 Nan Jing East Road Taipei Taiwan R O C Tel 02 2511 8688 THAILAND Siam Music Yamaha Co Ltd 3 4 15 and 16th floor Siam Motors Building 891 1 Rama 1 Road Wangmai Pathumwan Bangkok 10330 Thailand Tel 02 215 2622 VIETNAM Yamaha Music Vietnam Company Limited 15th Floor Nam A Bank Tower 201 203 Cach Mang Thang Tam St Ward 4 ist 3 Ho Chi
16. amaha orn EOX Eupurraik g Kwpos Viktigt Garantiinformation f r kunder i EES omr det och Schweiz For detaljerad information om denna Yamahaprodukt samt garantiservice i hela EES omradet och Schweiz kan du antingen bes ka nedanst ende webbaddress en utskriftsv nlig fil finns p webbplatsen eller kontakta Yamahas officiella representant i ditt land EES Europeiska Ekonomiska Samarbetsomr det Viktig merknad Garantiinformasjon for kunder i 5 og Sveits Detaljert garantiinformasjon om dette Yamaha produktet og garantiservice for hele EZS omr det og Sveits kan fas enten ved bes ke nettadressen nedenfor utskriftsversjon finnes pa v re nettsider eller kontakte kontakte Yamaha kontoret i landet der du bor 25 Det europeiske konomiske samarbeidsomradet Vigtig oplysning Garantioplysninger til kunder i og Schweiz De kan finde detaljerede garantioplysninger om dette Yamaha produkt og den f lles garantiserviceordning for EDO og Schweiz ved at bes ge det websted der er angivet nedenfor der findes en fil som kan udskrives vores websted eller ved at kontakte Yamahas nationale repreesentationskontor i det land hvor De bor EDO Det Europ iske konomiske Omr de 188 4 Owner s Manual T rke ilmoitus Takuutiedot Euroopan talousalueen ja Sveitsin asiakkaille suomi Taman Yamaha tuotteen seka ETA alueen ja Sveitsin takuuta k
17. da Musique Lt e This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation PRECAUTIONS PLEASE READ CAREFULLY BEFORE PROCEEDING Please keep this manual in a safe place for future reference WARNING Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock short circuiting damages fire or other hazards These precautions include but are not limited to the following Do not install the card in any Yamaha products not specified by Yamaha for use with the card to avoid possible electrical shock fire or equipment damage Do not attempt to disassemble or modify the card Do not apply excessive force to card connectors or other card components Mishandling of the card may lead to shock fire hazard or equipment failure Be sure to disconnect the power cable of the host device before installing the card and connecting disconnecting the cables in order to eliminate shock hazard undesired noise and avoid equipment damage Turn off all peripheral devices connected to the host device before installation and unplug all related cables in order to eliminate shock hazard undesired noise and avoid equipment damage
18. he illustrations as shown in this manual are for instructional purposes only and may be different from the ones on your equipment The company names and product names in this manual are the trademarks or registered trademarks of their respective companies MY4 AEC Owner s Manual 3 Information for Users on Collection and Disposal of Old Equipment This symbol on the products packaging and or accompanying documents means that used electrical and electronic products should not be mixed with general household waste For proper treatment recovery and recycling of old products please take them to applicable collection points in accordance with your national legislation and the Directives 2002 96 EC El By disposing of these products correctly you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling For more information about collection and recycling of old products please contact your local municipality your waste disposal service or the point of sale where you purchased the items For business users in the European Union If you wish to discard electrical and electronic equipment please contact your dealer or supplier for further information Information on Disposal in other Countries outside the European Union This symbol is only valid in the European Union If you wish to discard these items
19. ic Europe GmbH Branch Italy Viale Italia 88 20020 Lainate Milano Italy Tel 02 935 771 SPAIN PORTUGAL Yamaha Music Europe GmbH Ib rica Sucursal en Ctra de la Coruna km 17 200 28231 Las Rozas Madrid Spain Tel 34 91 639 88 88 GREECE Philippos Nakas S A The Music House 147 Skiathou Street 112 55 Athens Greece Tel 01 228 2160 SWEDEN FINLAND ICELAND Yamaha Music Europe GmbH Ger many filial Scandinavia J A Wettergrensgata 1 Box 30053 S 400 43 G teborg Sweden Tel 46 31 89 34 00 DENMARK Yamaha Music Europe GmbH Tyskland filial Denmark Generatorvej 6A DK 2730 Herlev Den mark Tel 44 92 49 00 NORWAY Yamaha Music Europe GmbH Ger many Norwegian Branch Grini N ringspark 1 N 1361 ster s Norway Tel 67 16 78 00 RUSSIA Yamaha Music Russia LLC Room 37 bld 7 Kievskaya street Mos cow 121059 Russia Tel 495 626 5005 OTHER EUROPEAN COUNTRIES Yamaha Music Europe GmbH Siemensstra e 22 34 25462 Rellingen Germany Tel 49 4101 3030 AFRICA Yamaha Music Gulf FZE Office JAFZA 16 512 P O Box 17328 Jebel Ali Dubai UAE Tel 971 4 881 5868 MIDDLE EAST TURKEY Yamaha Music Europe GmbH Merkezi Almanya T rkiye Istanbul ubesi Maslak Meydan Sokak No 5 Spring Giz Plaza Ba ms z B l No 3 34398 i li stanbul Tel 90 212 999 8010 CYPRUS Yamaha Music Europe GmbH Siemensstra e 22 34 25462 Rellingen Germany Tel 04101 3030 OTHE
20. ions du mode d emploi ne sont donn es que pour information Yamaha Corp se r serve le droit de changer ou modifier les produits et leurs caract ristiques techniques tout moment sans aucun avis Du fait que les caract ristiques techniques les quipements et les options peuvent diff rer d un pays l autre adressez vous au distributeur Yamaha le plus proche Las especificaciones y descripciones de este manual del propietario tienen s lo el prop sito de servir como informaci n Yamaha Corp se reserva el derecho a efectuar cambios o modificaciones en los productos o especificaciones en cualquier momento sin previo aviso Puesto que las especificaciones equipos u opciones pueden no ser las mismas en todos los mercados solicite informaci n a su distribuidor Yamaha Le specifiche e le descrizioni presenti in questo manuale sono fornite a fini puramente informativi Yamaha Corp si riserva il diritto di modificare prodotti o specifiche in qualsiasi momento senza preavviso Dato che le specifiche le apparecchiature o le opzioni possono essere diverse da paese a paese verificarle con il proprio rappresentante Yamaha Yamaha
21. l de garantie Pan SEE si Elvetia vizitati site ul la adresa de mai jos fi ierul imprimabil este disponibil pe site ul nostru sau contactati biroul reprezentantei Yamaha din tara dumneavoastr SEE Spatiul Economic European http europe yamaha com warranty URL 4 MY4 AEC Owner s Manual 189 For details of products please contact your nearest Yamaha representative or the authorized distributor listed below NORTH AMERICA CANADA Yamaha Canada Music Ltd 135 Milner Avenue Toronto Ontario MIS 1 Canada Tel 416 298 1311 U S A Yamaha Corporation of America 6600 Orangethorpe Avenue Buena Park CA 90620 U S A Tel 714 522 9011 CENTRAL amp SOUTH AMERICA MEXICO Yamaha de M xico S A de C V Insurgentes Sur 1647 Piso 9 Col San Jos Insurgentes Delegaci n Benito Juarez M xico D F C P 03900 Tel 55 5804 0600 BRAZIL Yamaha Musical do Brasil Ltda Rua Joaquim Floriano 913 4 andar Itaim Bibi CEP 04534 013 Sao Paulo SP BRAZIL Tel 011 3704 1377 ARGENTINA Yamaha Music Latin America S A Sucursal Argentina Olga Cossettini 1553 Piso 4 Norte Madero Este C1107CEK Buenos Aires Argentina Tel 011 4119 7000 VENEZUELA Yamaha Music Latin America S A Sucursal Venezuela Manzanares Plaza P4 Ofic 0401 Manzanares Baruta Caracas Venezuela Tel 58 212 943 1877 190 4 Owner s Manual PANAMA AND OTHER L
22. nnections and determine the optimum microphone and speaker locations as well as gain settings The AEC system will have the best possible effect if these initial steps are carried out properly 1 Prepare the following equipment DME24N x 1 MY4 AEC x 1 Microphones x 4 Speakers x 2 NOTE Be sure to choose microphones and speakers that have good frequency response characteristics in order to ensure optimum AEC operation 2 Connectthe microphones and speakers to the analog IN and OUT connectors on the DME24N rear panel as shown in the diagram MY4 AEC Owner s Manual 13 Meeting Room Near End Microphone 1 x Speaker 1 Microphone 2 OUT Speaker 2 Microphone 3 Analog DME24N Microphone 4 MY4 AEC IN Analog 3 Make the required virtual connections in the DME Designer configuration window e Connect the signals from microphone inputs 1 4 to the Near end 1 Near end Mic 4 inputs on the AEC component Place an oscillator that will be used for AEC adjustment in the configuration window and connect it to the AEC component From Far end A input The Far end voice A output is connected to the conference room speakers SP 1 and SP 2 in parallel Analog Input si AEC 5 Analog Output Analog Oscillator Mono 1 2 14 MY4 AEC Owner s Manual 4 Speak into the microphones you would during an actual conference and
23. ntee that interference will not occur in all installations If this product is found to be he source of interference which can be determined by urning the unit OFF and ON please try to eliminate he problem by using one of the following measures Relocate either this product or the device that is being affected by the interference Utilize power outlets that are on different branch circuit breaker or fuse circuits or install AC line filter s In the case of radio or TV interference relocate reorient he antenna If the antenna lead in is 300 ohm ribbon lead change the lead in to co axial type cable If these corrective measures do not produce satisfactory results please contact the local retailer authorized to distribute this type of product If you can not locate the appropriate retailer please contact Yamaha Corporation of America Electronic Service Division 6600 Orangethorpe Ave Buena Park CA90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries This applies only to products distributed by YAMAHA CORPORATION OF AMERICA class B This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada This applies only to products distributed by Yamaha Canada Music Ltd class B Ceci ne s applique qu aux produits distribu s par Yamaha Cana
24. om a speaker or reflections from surfaces of the room are picked up by a microphone and transmitted to the other party resulting in a loss of intelligibility Projectors and air conditioning systems also produce noise that can interfere with clear teleconferencing The echo cancelling and noise reduction capabilities of the MY4 AEC help to achieve maximum clarity and intelligibility for smooth effective communication Remote Local x e DMEGANJ2AN VL UN gs 4j How s business How s business 4 2 4 Hello LM fan noise installed and active at the remote location 6 MY4 AEC Owner s Manual n order to reduce acoustic echo originating from the remote location an echo canceller must be 4 Signal Flow The local and remote locations in a teleconferencing system are referred to as the near end and far end respectively The MY4 AEC acoustic echo canceller AEC works by comparing the reference signal received from the far end with the signal from the microphone in order to determine which components of the signal are echo and then subtracts only the far end echo component from microphone signal The near end sound is thus clearly transmitted to the far end without echo From Far end NR Far end Voice A From Far end NR Far end Voice B From Far end
25. oskevat yksityiskohtaiset tiedot saatte alla olevasta nettiosoitteesta Tulostettava tiedosto saatavissa sivustollamme Voitte my s ottaa yhteytta paikalliseen Yamaha edustajaan ETA Euroopan talousalue Wazne Warunki gwarancyjne obowiazujace w EOG i Szwajcarii Polski Aby dowiedzie sie wi cej temat warunk w gwarancyjnych tego produktu firmy Yamaha serwisu gwarancyjnego w ca ym i Szwajcarii nale y odwiedzi wskazan poni ej stron internetow Plik gotowy do wydruku znajduje si na naszej stronie internetowej lub skontaktowa si z przedstawicielstwem firmy Yamaha w swoim kraju EOG Europejski Obszar Gospodarczy D le it ozn men Z ru n informace pro z kazn ky v EHS ve v carsku Podrobn z ru n informace o tomto produktu Yamaha a z ru n m servisu v cel m EHS a ve v carsku naleznete na n e uveden webov adrese soubor k tisku je dostupn na na ich webov ch str nk ch nebo se m ete obr tit na zastoupen firmy Yamaha ve sv zemi EHS Evropsk hospod sk prostor Fontos figyelmeztet s Garancia inform ci k az EGT ter let n s Sv jcban l v s rl k sz m ra A jelen Yamaha term kre vonatkoz r szletes garancia inform ci k valamint az EGT re s Sv jcra kiterjed garanci lis szolg ltat s tekintet ben keresse fel webhely nket az al bbi c men a webhelyen nyomtathat f jlt is tal l vagy pedig l pjen kapcsolatba az orsz g ban m
26. possible If echo can be heard with the default AEC section Effect setting of 1 try increasing the setting in small increments Echo cancellation efficiency will increase as the setting is increased but sound quality will decrease at the same time so it is necessary to find the best setting for conditions in the local meeting room while actually listening to the audio signal Other parameters can usually be left at their default settings Refer to the DME Designer owner s manual for details on the individual AEC component parameters 20 MY4 AEC Owner s Manual Example 2 Teleconferencing with Two Remote Locations from Two Meeting Rooms Using one MY4 AEC card multiple participants in two meeting rooms can teleconference with wo separate remote locations Office X and Office Preparation Referring to Example 1 use an oscillator component to determine the ideal microphone and speaker positions for each meeting room The following equipment is used DME24N x 1 MY4 AEC x 1 Microphones x 4 Speakers x 4 Remote Connection and Settings 1 Connect the microphones speakers and teleconferencing system to the analog IN and OUT connectors on the rear panel of the DME24N as shown in the diagram A total of four microphones can be connected for the medium and small near end meeting rooms allowing multiple participants to confer simultaneously in both rooms MY4 AEC Owner s Manual 21
27. re Range Operating 0 to 40 C Storage 20 to 60 C Weight 160g DIGITAL INPUT OUTPUT CHARACTERISTICS Terminal Format Audio Data Length Level Connector IN 1 2 3 4 AES EBU 24bit RS422 Euroblock OUT 1 2 3 4 AES EBU 24bit RS422 Euroblock Professional use MY4 AEC Owner s Manual 183 Dimensions med 164 1 176 1 TU Ed 184 MY4 AEC Owner s Manual unit mm Specifications and descriptions in this owner s manual are for information purposes only Yamaha Corp reserves the right to change or modify products or specifications at any time without prior notice Since specifications equipment or options may not be the same in every locale please check with your Yamaha dealer Die technischen Daten und Beschreibungen in dieser Bedienungsanleitung dienen nur der Information Yamaha Corp behalt sich das Recht vor Produkte oder deren technische Daten jederzeit ohne vorherige Ank ndigung zu ver ndern oder zu modifizieren Da die technischen Daten das selbst oder Sonderzubeh r nicht in jedem Land gleich sind setzen Sie sich im Zweifel bitte mit Ihrem Yamaha Handler in Verbindung Les caract ristiques techniques et les descript
28. section via the host s processing section in order to apply echo cancellation as shown in the illustration below Operational details are provided in the DME Designer owner s manual Built in sample rate conversion is provided for all inputs and outputs sample rate conversion settings are also made via the DME Designer software Use the supplied Euroblock plugs for connection refer to Euroblock Connection on page 10 NOTE The channel 3 and channel 4 inputs and outputs IN3 4 and OUT3 4 in the above illustration cannot be used when the DME64N 24N word clock sampling rate is set to 88 2 kHz or 96 kHz 8 MY4 AEC Owner s Manual DME64N 24N AEC Processing MY4 AEC SRC SRC Analog Out Mic In AES EBU AES EBU OUT1 2 0UT3 4 IN1 2 IN3 4 MY4 AEC Owner s Manual 9 Euroblock Connection Please be sure to use the supplied Euroblock plugs to connect the AES EBU IN and OUT connectors Cable preparation To prepare the cable for attachment to a Euroblock approx connector strip the wire as shown in the illustration 7mm using stranded wire to make connections With a Euroblock connection stranded wires may be prone to breakage because of metal fatigue due to the weight of the cable or due to vibration Bundle the cables and the Euroblock tabs using the supplied cable ties page 12 When rackmounting your equipment use a lacing bar when possible to
29. sowie ber den Pan EWR und Schweizer Garantieservice besuchen Sie bitte entweder die folgend angegebene Internetadresse eine druckf hige Version befindet sich auch auf unserer Webseite oder wenden Sie sich an den f r Ihr Land zust ndigen Yamaha Vertrieb EWR Europ ischer Wirtschaftsraum Remarque importante informations de garantie pour les clients de l EEE et la Suisse Pour des informations plus d taill es sur la garantie de ce produit Yamaha et sur le service de garantie applicable dans l ensemble de l EEE ainsi qu en Suisse consultez notre site Web l adresse ci dessous le fichier imprimable est disponible sur notre site Web ou contactez directement Yamaha dans votre pays de r sidence EEE Espace Economique Europ en Nederlands Belangrijke mededeling Garantie informatie voor klanten in de EER en Zwitserland Voor gedetailleerde garantie informatie over dit Yamaha product en de garantieservice in heel de EER en Zwitserland gaat naar de onderstaande website u vind een afdrukbaar bestand op onze website of neemt u contact op met de vertegenwoordiging van Yamaha in uw land EER Europese Economische Ruimte Aviso importante informaci n sobre la garant a para los clientes del EEE y Suiza Para una informaci n detallada sobre este producto Yamaha y sobre el soporte de garant a en la zona EEE y Suiza visite la direcci n web que se incluye m s abajo la version del archivo para imprimir esta disponible en n
30. uch cases it may be necessary to apply acoustic panels to the walls or use other means to reduce room reflections f only the green segment of the ERL meter lights setting the Effect parameter to 1 or 2 should be optimum but if the yellow segment of the ERL meter lights an Effect setting of 3 or 4 will be required to produce the best results Since the actual effectiveness of the processing will depend on the rooms in which it is used it is important make adjustments while actually connected to and conferring with the remote location f the input signal becomes distorted for any reason before it reaches the Near end Mic 1 4 inputs of the AEC component echo cancelling will not function properly Enter the microphone to speaker distance in meters into the Acoustic Echo Canceller section Distance field If multiple speakers are used enter the distance between the microphone and nearest Speaker for each channel If the distance is less than 2 meters use the default value of 2 For greater distances enter the appropriate value MY4 AEC Owner s Manual 17 Remote Connection and Settings 1 Connect the microphones speakers and teleconferencing system to the analog IN and OUT connectors on the rear panel of the DME24N as shown in the diagram Four microphones can be connected at the near end location allowing multiple conference participants Meeting Room Near End Speaker 1 Microphone
31. uestro sitio web o p ngase en contacto con el representante de Yamaha en su pa s EEE Espacio Econ mico Europeo Avviso importante informazioni sulla garanzia per i clienti residenti nell EEA e in Svizzera Per informazioni dettagliate sulla garanzia relativa a questo prodotto Yamaha e l assistenza in garanzia nei paesi EEA e in Svizzera potete consultare il sito Web all indirizzo riportato di seguito disponibile il file in formato stampabile oppure contattare l ufficio di rappresentanza locale della Yamaha EEA Area Economica Europea Aviso importante informa es sobre as garantias para clientes da AEE da Sui a Portugu s Para obter uma informa o pormenorizada sobre este produto da Yamaha e sobre o servi o de garantia na AEE e na Sui a visite o site a seguir o arquivo para impress o est dispon vel no nosso site ou entre em contato com o escrit rio de representac o da Yamaha no seu pa s AEE Area Econ mica Europ ia onpeiwon MAnpo opies eyyUnons yia Tous TreAdTES oTov EOX kai EABer a EAAnvik yy nonc oXETIKG pe rrap v rrpoi v Yamaha k Auur rou EOX rnv EMer a rrapak ro ioroosA a eivai SiaGEoipn pac rj arreuOuv8s re avrimpoourre a Y
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