ESP32 Forum

Hi,

Is it possible to access the raw pdm data (not converted to i2s) in the i2s_pdm_rx esp-ifd example?

I am looking for an easy way to potentially store the raw pdm data eventually. Either in flash(I only need a few seconds) or on an SD card

Thanks

It's a pity that the raw PDM is not supported in IDF currently. But will be supported in the future

Note that you may be able to work around this by configuring the I2S peripheral in normal (I2S) mode with the correct parameters for the PDM serial format; you should be able to receive the raw samples that way (but you won't have access to the decoded samples as the decoder isn't used.)