Significant volume difference between left and right channel

[BrandonStudio]

I'm playing aac music from progmem to internal pwm of ESP32 (AudioOutputI2S(0, 2)).

The right channel (GPIO25) output is about 10 dB louder than left channel (GPIO26).
I think this project supports stereo channel, then I'd like to know whether it is my fault (I don't use it properly) or it is a bug of this project.

By the way, the output of internal DAC (AudioOutputI2S(0, 1)) is too loud with a lot noise, is there a way to optimize it?

[github-actions]

This issue is stale because it has been open for 60 days with no activity.