MIDI Forum

I do not know what device is meant with "Roland", but I guess that that data at its input is not passed through to its output. You then need a USB/MI...

If you were using a hardware synthesizer connected with a MIDI cable, the last message sent would be the one that is effective. Anyway, trying to s...

From a technical point of view, the USB protocol is bidirectional, so the working output implies that this is not a hardware problem. Yamaha docume...

In General MIDI, the only per-channel pitch controller is the Pitch Bend message. In GM2/GS/XG, you could use the Scale/Octave Tuning Adjust message ...

Other technical question belong into the appropriate forum. If in doubt, Stack Overflow.

Talking about using your software would belong here. Technical questions regarding the MIDI specifications would belong into "MIDI Specifications". ...

The YDP-131 manual is not very clear about it, but the only place where it mentions that data from the MIDI IN is played is in the section where it de...

There are no padding bytes. Many (meta) events at the beginning of a track have a zero delta time. Please show an example hex dump. They only wa...

This depends on what programming languages you're comfortable with. "Control" is rather vague. What exactly do you expect the platform/library to d...

[quotePost id=18825]if you look at the structure of the four bytes making up the Header Length or Track Length, you'll find (as in so much with MIDI 1...

Historically, MIDI files have always used big endian, and this has always been the more common byte order for interchange and network protocols.

Hardware errors would happen randomly, not always after 5 seconds. But I know of no other setting that might help.

Then please also try to disable USB selective suspend.

This indeed sounds like an overzealous power-saving "feature". What is the exact name of the setting that you tried to disable? "USB selective susp...

The velocity affect's a single note's volume (and maybe other parameters). The expression (CC 11) affects the entire channel, and should be used by t...