Voice detection with multi-channel interference cancellation
A multichannel audio system with a plurality of multichannel speakers having microphones, where the system receives audio signals from multichannel speakers, an adaptive filter enhances the voice signal portion of the audio signal by canceling interference in the audio signals by eliminating the portion of the audio signal matching reference signals, and processing the voice signal into voice commands.
1. A wireless multichannel audio system:
having a plurality of multichannel speakers, each with a microphone and a signal processor,
receiving non-voice reference audio for the plurality of multichannel speakers,
receiving audio signals from the plurality of multichannel speakers,
enhancing any voice signal in the audio signals by canceling at least a portion of any non-voice signal in the audio signals, and
processing the voice signal into voice commands.
2. System in claim 1 where the non-voice reference audio is identified in audio streams sent to the speakers by wireless multicast packets.
3. System in claim 1 where audio streams sent to the plurality of multichannel speakers are wireless Unicast packets.
4. System in claim 1 where the non-voice reference audio is identified in audio streams sent to the plurality of multichannel speakers by wireless multicast packets.
5. System in claim 1 where the non-voice reference audio is identified in audio streams sent to the plurality of multichannel speakers by wireless groupcast packets.