Could the XMOS XVF3800 be an alternative to the XU316 in future hardware designs?

[Hedda]

Could the XMOS XVF3800 be an alternative to XU316 in future hardware designs when XMOS has not (yet) release open-source firmware?

• https://www.xmos.com/xvf3800

Could maybe the Open Home Foundation convince XMOS XVF3800 firmware under XMOS PUBLIC LICENCE so ESPHome projects can use it?

• https://github.com/esphome/voice-kit-xmos-firmware/blob/dev/LICENSE.rst

For the official reference hardware from XMOS see their XK-VOICE-SQ66 4 microphone development kit / evaluation kit:

• https://www.xmos.com/develop/xvf3800/

  • https://www.xmos.com/xk-voice-sq66

XVF3800 is similar to XU316 in concept but higher-end + supports 4 microphones (for either a square mic array or a linear mic array) and uses those and XMOS's proprietary "state of the art" real-time DSP voice processing that combine AEC (Acoustic Echo Cancellation), de-reverberation, noise suppression algorithms, multiple adaptive beamformers, and AGC (Automatic Gain Control), which in practice apparently means that it will work much better at capturing clear high-quality speech in a big noisy rooms (where many people are talking at the same time) when compared to solutions based on the XU316 chip

• https://www.xmos.com/file/xvf3800-product-brief/?version=latest

You may have heard about the new ReSpeaker 4-mic board from Seeed Studio based which is has this XMOS XVF3800 chip instead of XU316:

• https://www.seeedstudio.com/ReSpeaker-XVF3800-4-Mic-Array-With-XIAO-ESP32S3-p-6489.html

  • https://www.seeedstudio.com/ReSpeaker-XVF3800-USB-Mic-Array-p-6488.html

For discussion about ESPHome integration for ReSpeaker XMOS XVF3800 using closed-source firmware on the XVF3800 see this thread:

• https://community.home-assistant.io/t/respeaker-xmos-xvf3800-esphome-integration/927241

  • https://github.com/formatBCE/Respeaker-XVF3800-ESPHome-integration

For reference, ReSpeaker XVF3800 can be flashed and used similar to XU316 but today it needs closed-source binary blob firmware images:

• https://github.com/respeaker/reSpeaker_XVF3800_USB_4MIC_ARRAY/blob/c17a9223908ae036c24117e37a6b5f8a84edb622/xmos_firmwares/dfu_guide.md

  • https://github.com/respeaker/reSpeaker_XVF3800_USB_4MIC_ARRAY