Echo cancellation

[RASPIAUDIO]

I made it work on the ESP32 S3 Muse Radio but it’s picking up it’s own response, I think webrtc has built-in noise cancellation but how to activate it?

https://www.youtube.com/watch?v=Q9BVurtly_M&embeds_referring_euri=https%3A%2F%2Fcommunity.openai.com%2F&source_ve_path=Mjg2NjY

[juberti-oai]

There's no echo cancellation built into ESP32, you'll need to find an external AEC library like https://www.espressif.com/en/solutions/audio-solutions/esp-afe.

[shenxiaozheng]

We can refer to these examples to implement the echo cancellation functionality. https://github.com/espressif/esp-skainet/tree/master/examples

[nischalj10]

hey all, I tried echo cancellation (AEC) via ESP-AFE but its too slow for realtime needs. I think the esp32s3 chipset is not capable of doing wifi+realtime audio+ noise cancellation all at the same time.

were any of you successful in accomplishing noise cancellation?

[RASPIAUDIO]

hey all, I tried echo cancellation (AEC) via ESP-AFE but its too slow for realtime needs. I think the esp32s3 chipset is not capable of doing wifi+realtime audio+ noise cancellation all at the same time.

were any of you successful in accomplishing noise cancellation?

@nischalj10 can you share your code ? I can try to run AEC on one core and webrtc on the other

[shenxiaozheng]

I have tested the AEC algorithm of ESP before. CPU usage is less than 20% of a single core. Do you have any tests in this area.

[nischalj10]

@nischalj10 can you share your code ? I can try to run AEC on one core and webrtc on the other

hey @RASPIAUDIO - i have done a simple from scratch implementation of just aec (without realtime webrtc) on my setup and that also does not seem to work. here's the project.

here's my hardware details -

• seeed xiao esp32s3
• inmp 441 mems mic
• max98357a amp for audio out

could you try to run this and mod it so it works?

[nischalj10]

I have tested the AEC algorithm of ESP before. CPU usage is less than 20% of a single core. Do you have any tests in this area.

hey @shenxiaozheng, is it possble to share your implementation, maybe i have missed something here?