Small delay in streaming-i2s-i2s

[malaki86]

I have an XIAO ESP32-S3, INMP441 and MAX98357A, with it streaming the i2s from the mic, directly to the amp. There is a very slight delay, maybe a 10th of a second, from when a sound is made, like speaking or tapping on the mic, until it's played. I've already changed the logger to 'Error', but it didn't make a difference. The code I'm using is the library's example, with the only changes being the pin numbers and log level.

What else can I try to reduce, or even better, eliminate the delay?

[pschatzmann]

The delay is caused by the i2s buffer: which is defined by buffer_size * buffer_count in the config.

Just make this buffer smaller !

[malaki86]

This is correct?

auto config = i2s.defaultConfig(RXTX_MODE);
config.buffer_size = 128;
config.buffer_count = 8;
config.copyFrom(info);

[malaki86]

Reduced it to a buffer_size of 64 and the delay is almost unnoticeable now. Thank you!