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Is it mandatory to have an audio codec or DSP chip to use ESP ADF in a custom board ?
Posted: Wed Jan 10, 2024 1:49 am
by migmel
Hello guys,
I have a custom board which includes a MEMS INMP441 digital output microphone and a MAX98357 audio amplifier. Not any audio specific codec or DSP chip.
So, I wonder if it is still possible to develop ESP ADF applications with this custom board.
If not, why? If yes, what should I accomplish to do so?
Thank you
Re: Is it mandatory to have an audio codec or DSP chip to use ESP ADF in a custom board ?
Posted: Wed Jan 10, 2024 4:04 pm
by liaifat85
It is possible to develop ESP ADF (Espressif Audio Development Framework) applications with your custom board that has a MEMS INMP441 microphone and an MAX98357 audio amplifier. audio codec or DSP chip is not mandatory.
Re: Is it mandatory to have an audio codec or DSP chip to use ESP ADF in a custom board ?
Posted: Thu Aug 15, 2024 5:59 pm
by rafaBG
@liaifat85, can you show us how to do it? I'm able to run a project using ESP-ADF, but I only get silence from microphone (INMP441), via I2S.
When I configure the project, under "Audio HAL", if I set "Audio Board" to "Custom audio board", the project crashes because I don't have a 'board.h' file.
So, how can I fix this (use ESP-ADF I2S stream without codec/DSP chip, on an ESP-WROOM-32D)?
PS.: The reason I want to use ESP-ADF instead of the normal I2S driver (which is working perfectly, by the way) is that ADF offers other features that I will use (mostly HTTP stream directly from the I2S stream).
I appreciate any help!
Re: Is it mandatory to have an audio codec or DSP chip to use ESP ADF in a custom board ?
Posted: Tue Oct 29, 2024 10:20 am
by pcouderc
Have you successed in your project ? I have a similar project.