search

TreeFallSound / pi-stomp

pi-stomp is a DIY high definition, multi-effects stompbox platform for guitar, bass and keyboards
https://treefallsound.com
GNU General Public License v3.0
104 stars 19 forks source link

MIDI keyboard out of tune through the pi-stomp #60

Closed MarnixMeersman closed 1 year ago

MarnixMeersman commented 1 year ago

Hi,

I guess this either due to the soundcard or a setting in the MOD UI, but for some reason my midi keyboard is 40 cents out of tune when I use it through the pi-stomp. The problem seems to be with the pi stomp as the same keyboard plugged into a DAW like garageband is perfectly in tune. I also tried different generator plugins in the MOD plugin library, but all of them heb the same pitch shift.

Regards, Marnix

rreichenbach commented 1 year ago

This is almost for sure a problem that we discovered recently with the initialization of the IQAudio Codec Zero audio card. It causes problems for plugins which rely on sample rate including tuner, pitch shift and tone generators. For example, playing the A string on a guitar thru the Tuna Tuner will show a frequency of around 117Hz instead of 110Hz as it should.

Micah applied a fix earlier this month to reinitialize the card upon every boot. To get this change, you'll unfortunately need to reinstall from scratch:

https://www.treefallsound.com/wiki/doku.php?id=software_installation_64-bit

If you try this, please report back on whether this fixes the issue you are seeing.

MarnixMeersman commented 1 year ago

Hi,

Indeed, a full re-install fixed my issues. Also I'm really pleased to see how much has changed since my last install. I had one more question, what does this blue logo next to the bypass relay switch do? image

rreichenbach commented 1 year ago

Glad that resolved your issue. Will close the issue.

That blue toolbar button toggles on/off the global DAC EQ. Eventually, you'll be able to long press it and it'll allow you to adjust the 5 bands. In the meantime, you can run 'alsamixer' via ssh scroll to the right and adjust the 5 bands there (DAC EQ1... DAC EQ5).