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XMOS Delivers Stereo-AEC Voice Kit

New voice kits support clearer audio reception for voice-enabled smart devices.
Posted Dec 4, 2017
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XMOS, a supplier of embedded voice and audio solutions to the consumer electronics market, has released the XVF3500 voice processor, which supports stereo acoustic echo canceller (AEC), along with a stereo AEC far-field linear microphone array solution, the VocalFusion Stereo Evaluation Kit (XK-VF3500-L33).

The XVF3500 voice processor delivers 2-channel full duplex acoustic echo cancellation (AEC). The solution is designed for developers working in the voice-enabled smart TV, soundbar, set-top box, and digital media adapter markets, all of which require stereo-AEC support for across the room voice-interface solutions.

The solution also supports configurable AEC latency, where the AEC reference signals can be calibrated, and the latency adjusted, to enable after-market far-field voice accessories for existing consumer electronics products. It allows commands to be captured from across the room for processing by a cloud-based speech recognition system, even in complex acoustic environments. The XVF3500 voice processor delivers voice digital signal processing, including a full duplex AEC with barge-in capability that enables users to interrupt or pause devices that are playing music, and an adaptive beamformer that follows a speaker. Additional features include dereverberation, automatic gain control, and noise suppression.

"This device and evaluation kit will fuel further growth in the integration of embedded voice-controlled devices at the edges of our rooms, particularly those used for high-quality music and TV control," Mark Lippett, president and CEO of XMOS, said in a statement. "We already have the most comprehensive portfolio of far-field voice capture solutions, and this announcement further consolidates that position."


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