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AEC reference signal in RAW mode

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AEC reference signal in RAW mode 4 years 4 months ago #42042

  • virajk
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I want to use UMA-8-SP USB mic array in RAW mode to do beamforming on the host. In addition I want to do AEC on the host too. Playback is via UMA-8-SP USB mic array. So I was checking if playback audio data (converted to mono) can be looped back into 8th channel in the capture on MiniDSP board. So on host, when I do 8 ch RAW capture, the 8th channel will contain AEC reference signal.

I tried doing simultaneous playback and capture on UMA-8-SP USB mic array. But 8th channel is always silent. Is it possible to fill playback data into 8th channel?

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USB Mic Array
AEC reference signal in RAW mode