Shifting pitch in a MIDI file?

Angel de Vicente angelv at
Mon Dec 13 22:49:07 GMT 2010


On 13/12/10 17:59, Lars-Erik Helander wrote:
> I have had similar problems in the past with Qsynth and the remedy was
> - as indicated by others in this thread - to make sure that the
> sampling setting in Qsynth matches that of Jack (44100 or 48000). In
> case you are unsure how to set it up properly, press the "Setup"
> button of Qsynth, then select the "Audio" tab and try the various
> options available for "Sample Rate". The ones most likely to work
> would be 44100 or 48000.

yes, that was the problem. Jack was set to 48000 while Qsynth was set at 
44100. When both are at 48000 the "Free Music Instrument Tuner" reports 
a nice 440Hz Concert A with the Virtual Keyboard. But this doesn't seem 
to affect the other synth that I tried: ZynAddSubFX: with this one, 
either 44100 or 48000 sample rate produce a concert A in tune...

In any case, I think the problem can be considered solved now. Thanks a lot,

Ángel de Vicente

High Performance Computing Support PostDoc
Instituto de Astrofísica de Canarias
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