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Published 20 hours ago • verified publisher icon tomarus

Sequencer appears to be out by an octave

Open kevinjwalters opened this issue 6 years ago • 2 comments

I think the sequencer is an octave too low for the midi notes it outputs. As an example, I see the sequencer is sending the midi note 57 (0x39) for A4. I checked that against a small Korg synth and see 220Hz coming out indicating it's actually A3 on an audio spectrum analyser.

kevinjwalters avatar Feb 20 '19 22:02 kevinjwalters

Thank you for reporting the first issue on this project. As you probably guessed i'm not really actively working on this project anymore as I'm building the hardware version of it recently. However i still use this on a regular basis.

For now you can use the Transpose method to manually correct the octave.

The next time i'll work on this project i'll definitely look into this and try to roll some fixes.

tomarus avatar Feb 25 '19 18:02 tomarus

Thanks. I'd found it online and started using the midi router as mentioned on https://forums.adafruit.com/viewtopic.php?f=59&t=147909 it's very useful. I then had a play with the sequencer and noticed things looked octave shifted.

I do hardware too: https://forums.adafruit.com/viewtopic.php?f=59&t=147681 :)

kevinjwalters avatar Feb 25 '19 18:02 kevinjwalters