Search found 3 matches
- Mon Oct 02, 2023 6:47 pm
- Forum: ESP-IDF
- Topic: Inputting audio to an ESP32 from an INMP441 I2S microphone: success
- Replies: 13
- Views: 70691
Re: Inputting audio to an ESP32 from an INMP441 I2S microphone: success
I had the same problems a few weeks ago. And finally solved it in a different thread.
- Fri Sep 22, 2023 11:39 am
- Forum: ESP-IDF
- Topic: I2s microphone sample rate seems halft as big as it's supposed to
- Replies: 5
- Views: 3760
Re: I2s microphone sample rate seems halft as big as it's supposed to
Ok. Found it. By setting .slot_cfg.data_bit_width to 24 bit, I effectively decreased the pitch by 3/4. You can simply set .slot_cfg = I2S_STD_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_32BIT, I2S_SLOT_MODE_STEREO), like TS already mentioned. Correct (tested) code for the Megaphone: #include <std...
- Thu Sep 21, 2023 11:10 pm
- Forum: ESP-IDF
- Topic: I2s microphone sample rate seems halft as big as it's supposed to
- Replies: 5
- Views: 3760
Re: I2s microphone sample rate seems halft as big as it's supposed to
Funny thing is, this has been hidden in plain sight for years... https://www.esp32.com/viewtopic.php?f=13&t=1756&start=10#p9283 I'm using ESP-IDF5.1 as well, and wrote a piece of code that will output the input from my 2 microphones to an external DAC. #include <stdio.h> #include <string.h> #include...