The XVF3500 voice processor is able to deliver 2-channel full duplex acoustic echo cancellation (AEC) and has been designed for developers working in the growing 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 accurately calibrated, and the latency adjusted, to enable after-market far-field voice accessories for existing consumer electronics products.
Commenting Mark Lippett, President and CEO at XMOS said, “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.”
Commands are accurately captured from across the room for processing by a cloud-based speech recognition system and the XVF3500 voice processor provides sophisticated voice digital signal processing (DSP) including a full duplex acoustic echo canceller (AEC) with barge-in capability that enables users to interrupt or pause a device that’s playing music, and an adaptive beamformer that follows a speaker.
In additional it offers sophisticated dereverberation, automatic gain control, and noise suppression to provide clear voice interaction even in noisy environments.