AEC and playback quality

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Joined: Sun Jun 30, 2019 6:47 pm

AEC and playback quality

Post by fastjack79 » Tue Sep 17, 2019 1:05 am


As of today, the Respeaker Mic Array v2 AEC algorythm is limiting the audio/music playback to 16Khz (the 48Khz firmware has pretty bad AEC).
It seems that WebRTC AEC algorythm allows a sample rate up to 32Khz.
Do you think you can increase the playback sample rate to 32Khz and keep the AEC performance identical to the 16Khz one (which would greatly improve music playback quality while preserving AEC performance)?
Can you check with your software guys to see if this is at all possible?


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Re: AEC and playback quality

Post by bill.yu » Thu Sep 19, 2019 2:06 pm

Hi there~

We checked with software team that it can NOT be acheived due to XMOS calculation resource limit. thanks.

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