Midifile Optimizer

Midifile Optimizer Pro is an advanced software application that you can use to edit and play Midi files. It supports up to 16 channels and comes packed with a lot of useful features, such as a drum editor, volume normalizer, and event editor.

Play Midi files and make adjustments

After a rapid and uneventful setup operation, you are welcomed by a user-friendly interface with a colorful and flat look, showing all Midi controls. You can begin by opening a .mid-formatted file.
It's possible to play the track, seek a position by moving a slider, as well as check out the number of channels, current song position, tempo, and transpose.

Tweak channels separately and swap sounds

Midifile Optimizer lets you tweak the volume level for each channel individually along with the master volume for all of them, increase or decrease the octave, run a channel solo by muting all the other ones, or mute any channel.
Furthermore, you can enable looping mode while playing the Midi file and specify the loop start and duration, adjust the panorama, expression, reverb and chorus effects, increase or decrease the tempo, transpose, as well as view a form with all sounds and change them: piano, chromatic percussion, organ, guitar, bass, strings, ensemble, brass, reed, pipe, ethnic, SFX, percussive, or synth (lead, Pan, SFX).
Midifile Optimizer also lets you view a list with all events and insert new ones, edit drums and lyrics (if available), and switch to a different intelligent transpose mode. Settings can be exported to file and imported later, while the UI look can be swapped with another one.

Evaluation and conclusion

No error dialogs were shown in our tests, and the software application didn't hang or crash. It had a good response time and minimal impact on computer performance, using low CPU and RAM.
All in all, Midifile Optimizer features some powerful, intuitive and fun settings for playing with Midi sound files, and it can be handled even by casual users.