Shifting pitch in a MIDI file?

Angel de Vicente angelv at
Mon Dec 13 14:32:46 GMT 2010


On 13/12/10 13:36, Angel de Vicente wrote:
> Hi,
> On 13/12/10 13:13, Ralf Mardorf wrote:
>> Add a track and send Pitch to all channels, but note, that the steps for
>> the Pitch Wheel are defined by the synth e.g. 0 or 2 or 12 semi
>> steps ;). MIDI does also know a master tune, but this isn't supported by
>> every synth. You might have not an issue for the sample rates, regarding
>> to the bad tuning, I once had this too. I did a new install and the
>> tuning was ok.
> You mean add a track and send the pitch (from the virtual keyboard) to
> it? I've never done anything like this, so if you have pointers to
> documentation that I can read in order to do this sort of thing I would
> be grateful.

In the end, changing the software synthesizer to ZynAddSubFx instead of 
QSynth seems to do the trick, since it has options to do a Glogal or a 
per-instrument keyshift, plus a fine tune/detune knob, with an 
integrated keyboard to test the exact tuning in Hz, so I think this 
should be fine.

Ángel de Vicente

High Performance Computing Support PostDoc
Instituto de Astrofísica de Canarias
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