Thanks for the advice lbernstone. I'm sorry, maybe I'm not clear enough (sorry, since english is not my mother language). Sound quality is now great. Without problems. I use audio read and audio write without problems: i2s_channel_read( rx_handle, &rxbuf[0], BUFFER_SIZE*2, &readsize, 1000); i2s_chan...

Thanks for the answer. The problem was the pin definition. Pin 8 is led built in, so that was one problem. There is other pin (didnt care about finding out witch one) so I changed all of them: #define SD_CS GPIO_NUM_21 // SD Chip Select (SS) #define SD_CLK GPIO_NUM_20 // SD Clock (SCK) #define SD_MO...

Hi! I'm working on a project that requires an autonomous device to record audio (44.1 kHz, 16 bits minimum). It works well with the following hardware: ESP32 32S, PMOD I2S2, Micro SD Card Module, Sandisk Extreme Pro. The project is not powered by any switching device, and caps are placed on all the ...