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I'm unfortunately in the same boat, BUT, I have found a decent work around in a pinch.

On a mac, you can slow down the ethernet output to 10base instead of the default 100 or 1000. Go to System...

Interesting--- Is there any documentation anywhere online saying this? I assumed since it had a DAC it would be just as capable with the audio library, or is it just not implemented yet? :(

On a new Teensy LC, when I compile any of the example sketches that come with the Teensy Audio Library I'm getting this error:



Using library Audio in folder:...

Aye, now I'm not so sure it's because of the anti-aliasing.... I have a 3rd order low pass filter @ 19.1K (easy values: .1uF & 83ohm) and the harmonics are showing up just as badly & audibly....

Hm... Yup that seems to be the case. Here it is @ 18kHz (offset by .5kHz).
3898

What would you suggest the best (hopefully simplest) way to fix this?

Thanks for helping out

Thanks for the response--- by intense harmonic distortion, I mean that there are very audible frequencies being heard. On an o-scope it looks ok, just has some discrete steps in the sine wave....

Hi there!

I'm looking to output high frequency sine waves (~18kHz - ~20kHz) through this Adafruit mono Class D Amplifier (https://www.adafruit.com/product/2130). Here's the very basic preliminary...