i2s_adc_dac to generate .wav file

[joicetm]

Hi,

I have just tried the example code and it is working fine.
How can i generate the .wav file from the recorded data. is there any documentation on that.

[ESP_Sprite]

Not really, but in theory you could esptool.py to extract the data on the partition where the sound was recorded, then use a program like Sox to convert from raw data to wav. Or you could modify the example itself to write a wav header to the output data; the wav file format is not that hard to generate a header for.