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ESP8266 for audio recording!

PostPosted: Sat Dec 07, 2019 1:26 am
by Subham Hati
Using NODEMCU ESP8266 and MAX9814 Electret microphone module, i want to stream the audio samples to a server. My audio requirements are basic- 8kHz in .wav format.
The closest project I have found is : https://www.hackster.io/middleca/sendin ... net-f097b4

Is this possible?

Re: ESP8266 for audio recording!

PostPosted: Fri Dec 13, 2019 4:28 am
by eriksl
Yes, best way is to use an external ADC which is connected to the ESP using I2S. I2C could do as well, I think, for this sample rate, but then you would have to use a very efficient I2C implementation, i.e. not the one that comes from Espressif.