API for supporting Echo Cancellation in Windows Vista/7. Ask Question 5. One of the questions responded to the ability of VoIP software to perform echo cancellation when running on Windows Vista. Update: It should be noted i'm not looking for an echo-cancellation API, i'm looking for an API to sample the playing output. As we have probably all experienced from time to time, acoustic echo can turn what should be a simple conversation into something that resembles a dog's. ![]() Acoustic Echo Cancellation Software| AEC Providing Reliable Signal Processing Solutions Since 2001 • • • • • • • • • • • • • • • • • • • • • • • • ACOUSTIC ECHO CANCELATION DSP ALGORITHMS has a long history providing reliable acoustic echo cancellation solutions. Our AEC solutions have been used in pioneering projects such as the British Telecom's VoIP client on Windows Mobile smartphones back in 2006 when smartphones were dominated by Windows Mobile devices. Back then smartphone application processors used to operate at maximum speed of 200 MHz and needed to run a complete VoIP client including the AEC on top of the Windows Mobile operating system, and all had to be responsive with good audio quality. With today's multiple cores and GHz processors, AEC audio quality is more important than resource consumption, and our AEC solutions have been evolving with market requirements like no others, improving quality while keeping the robust features intact. Today, our acoustic echo cancellation solutions are used in all communication and conferencing markets where an AEC has an added value, from large multi-microphone installed audio systems to tiny mobile devices. What professionals say about our AEC Solutions William Westlake, product manager at British Telecom after testing the Microsoft VoIP client with DSP ALGORITHMS AEC plug-in on Windows Mobile 6.0: 'The Voice Quality is now superb, better than GSM and maybe as good as PSTN.' Mark Hemmer, after testing Symetrix' SymNet Designer 6.0: 'I loaded 6.0 into the system for testing in an Auditorium that seats up 500 people. This location has over 40 audience microphones used for questions and answers, plus another 4 wireless and 5 wired microphones on the platform, plus a podium microphone. They regularly do both video and teleconferencing from this location and due to the size of the room, PA is mandatory. I submixed all 50 microphones through 2 automixers and simply inserted a SymNet 6.0 single channel AEC in the signal path. Docuworks 8 keygen generator free. I was amazed at how well it worked. This Facility uses a Polycom for video conference and A Gentner DH20 for teleconference, both of these items work well but we would still notice some glitches and echo at times probably due to the extreme environment. Running the SymNet 6.0 AEC in circuit with these two devices completely removed this problem with no artifacts. With the internal AEC in the Gentner and Polycom bypassed, the system was equally problem free.' CUSTOMERS' PRODUCTS HIGHLIGHTS It has always been a joy to own and use a high quality Crestron® control system with a beautiful touch panel to control every thing in the house or office from heating and lighting to audio and video. With the introduction of the Rava Sip Client this joy is doubled. Users of touch panels running Rava can now make hands-free audio and video calls over the Internet directly from their control panels, all hands free thanks to our AEC. With 6-element tracking microphone array and our AEC solution running at 48kHz sampling rate, the performance is unprecedented and the possibilities are unlimited. Not only that, you also get a professional-quality device at a consumer-grade price.
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