Adding to AT's advice if you are using GM you can increase the volume by increasing the velocity.

If the MIDI file is one from the Internet then search each track for volume settings, i.e. CC7, CC11, or CC2. Sometimes the volume settings are on a different track than the sound track.


Life is short so make sure you spend as much time as possible on the Internet arguing with strangers.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware