Search found 2 matches

by awwende
Thu Jun 14, 2018 6:37 pm
Forum: General Discussion
Topic: I2S external dac works with mono but not stereo signals
Replies: 1
Views: 3867

Re: I2S external dac works with mono but not stereo signals

I think I found what the problem is, in the i2s_config there are settings for the dma buffer count and length. If I adjust the values, I can reduce the noise, or if they're too large, they seem to introduce echoing/reverb. I'm not sure what the correct values are though. In this example ( https://gi...
by awwende
Wed Jun 13, 2018 5:34 pm
Forum: General Discussion
Topic: I2S external dac works with mono but not stereo signals
Replies: 1
Views: 3867

I2S external dac works with mono but not stereo signals

I've been playing with the MAX98357A ( https://www.adafruit.com/product/3006 ). I've been using SparkFun's ESP32 Thing ( https://www.sparkfun.com/products/13907 ) with the motion shield ( https://www.sparkfun.com/products/14430 ) to play .wav files from an SD card. I used audacity to convert the ste...