[pulseaudio-discuss] Pulseaudio on the ESP32 ?

[Denis Shulyaka]

Hi JF,

PA relies on ALSA drivers for the sound cards, including I²S, so unless you
have a Linux port on this chip, there's a lot of work. Also, active noise
cancelation is easier said than done.

Best regards,
Denis Shulyaka

сб, 4 сент. 2021 г., 00:03 JF <pulseaudio at domn.net>:

> Hello,
>
> I would like to know if anyone has ever tried to interface pulseaudio with
> an ESP32 chip ?
>
> This extremely popular 3$ chip has ethernet, wifi 802.11n and bluetooth
> 4.2+BLE capabilities as well as a pair DMA capable I²S bus capable of
> operation is both master or slave modes.
>
> This is on of the most popular chip currently in use by Arduino IDE users,
> making it extremely accessible for hobbyist use.
>
> Infomation regarding the I2s programming interface
>
> https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/i2s.html
>
> More information about this chip
> https://en.wikipedia.org/wiki/ESP32
>
> A variant of this chip called the ESP32-A1S, comes with on board audios
> ADC/DACs ?
> Although the details are not clear about this one for me. It is a
> audio-centric variant.
> https://docs.ai-thinker.com/en/esp32-a1s
> https://github.com/donny681/esp-adf
>
> I've been a subscribe to this mailing list for a while but I have not yet
> spotted discussion of this chip.  I am under the impression that this chip
> could be the ideal hobbyist pulseaudio platform.
>
> (My intention is to create 3d printed wifi gaming headest with DSP
> capability and active noise cancellation. I know the doc says wifi's
> not good enough for audio, but I want to try it out for myself, especially
> with the latest 802.11ax standard)
>
> Thanks !
>
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