The MIDI Forum

  Wednesday, 25 March 2020
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Hi, even though I've been utilizing MIDI for many years, I've decided to start getting into MIDI file creation. It's not just a matter of recording your tracks and exporting as a MIDI file!!
I've learned to create a 'Header' on each track to create the required CC information, but here's my problem.
I've opened up a pre recorded midi file to work on. I've managed to input the program change info so that it uses the sounds that I want, but I have a track with strings (General MIDI No.49) that seem to have a slow attack on them. If I delete the header, they play normal, but as soon as I add a header, the attack is back! I haven't added any attack information.
Any thought would be gratefully received!:)
1 year ago

Have you got the GM number right?

The GM sound list runs 1 to 128, and 49 is Strings, and 50 is 'slow' syrings, i.e. with a slow attack. But the numbers that appear in the midi file are always 1 less, i.e. running 0 to 127, and the standard strings will therefore appear as 48 and the slow strings will be 49.

This will not be anything to do with the header, but it might be to do with whatever manipulation you're doing to the file when you do whatever with the header.

If there;s still a problem, please attach the midi file that has the problem.

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