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by john12john
Thu Mar 23, 2017 12:28 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Add an I2S mic using device tree & simple-audio-card
Replies: 36
Views: 24828

Re: Add an I2S mic using device tree & simple-audio-card

The mics sample to 24 bits, supporting S24_LE & S32_LE formats natively. The former is still 32 bits wide, padded with 00's - perfect for our 32-bit processor. If you want 16-bit, you'll have to do it in software. That's probably do-able by editing that .asoundrc chain with another plugin to do the...
by john12john
Tue Mar 21, 2017 8:27 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Add an I2S mic using device tree & simple-audio-card
Replies: 36
Views: 24828

Re: Add an I2S mic using device tree & simple-audio-card

Hey all, great instructions! I got it working using this I2S mems microphone breakout from Adafruit: https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/overview I was wondering if you manage to change the bit-rate. I'd like to do recording with a bit rate of 16bit but it seems this sam...

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