Hi Sparkfun folk, I’ve been working with the [https://www.sparkfun.com/products/20690 and after a few hours of confusion I realized that despite the multitude of gain controls available, the one thing this board cannot seem to do is attenuate the input, i.e. it can’t behave like a volume control. It is possible to set negative gain, but only in combination with compression, which raises the gain offset, so effectively the compression can only boost low levels, it doesn’t actually reduce high levels.
Here are a couple of posts about it:
https://e2e.ti.com/support/audio-group/ … fixed-gain
https://e2e.ti.com/support/audio-group/ … -tpa2016d2
Anyway, maybe add a note in the product description or library to this effect? It was an unwelcome surprise for me.](SparkFun Qwiic Speaker Amp - DEV-20690 - SparkFun Electronics)