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Playback speed problem

Open srgzah-ida opened this issue 5 years ago • 2 comments

Hello. Thanks for the nice library, but there is a problem with it.

I generated a .mid file according to your instructions. Then I try to play the recording using AVMIDIPlayer. For some reason the recorded midi is played at double speed. If I set AVMIDIPlayer.rate = 0.5, then it sounds like normal. Could you help me with problem? Maybe I'm generating the midi incorrectly?

srgzah-ida avatar Feb 18 '20 14:02 srgzah-ida

I agree, great library. It seems the default bpm is 60 but is playing back at 120 when you import it. I'm seeing this behaviour when I create a new midiData object from scratch. But I haven't figured out yet how to change the midi files BPM to 60 (or any other tempo) by default so a player knows what the bpm should be.

9SL9 avatar Mar 31 '20 07:03 9SL9

I just read today that 120 is the default speed for MIDI files that don't provide a tempo, so perhaps it has something to do with that.

bcichowlas avatar May 29 '22 01:05 bcichowlas