Creating audio pipeline for raw PCM audio output of AFE algorithm to I2S0 and stream it as PDM.

newguy001
Posts: 3
Joined: Fri Dec 02, 2022 4:50 pm

Creating audio pipeline for raw PCM audio output of AFE algorithm to I2S0 and stream it as PDM.

Postby newguy001 » Tue Dec 06, 2022 11:24 pm

I am using voip example linked here: https://github.com/espressif/esp-adf/bl ... /README.md

I want to create an audio pipeline where I take the output of the AFE Algorithm (16bit PCM) and via I2S0 stream it as PDM.

[codec_chip] ---> i2s_stream ---> filter ---> algorithm ---> i2s_stream (PCM to PDM I2S0) ---> [External MCU]

I want this pipeline to be always active.

I need help coding this using voip example linked above.
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