OPNMIDI Player

WohlstandFox

About this app

It's a small and simple MIDI player with OPN2 (Yamaha YM2612) or OPNA (YM2608) FM synthesis. The player can play any MIDI, MUS, or XMI file you will have on your device. Player has General-MIDI and Semi-XG compatible bank timbre bank made from imported instruments from various Sega Megadrive/Genesis games, ported from OPL3, or originally made. Optionally you can use external timbre bank file in WOPN to get the different sounding of your music.

# Key features of the libOPNMIDI synthesizer:
* OPN2 emulation
* Customizable bank of FM patches (You have to use the bank editor (https://github.com/Wohlstand/OPN2BankEditor) to create own soundbank)
* Stereo sound
* Number of simulated OPN2 chips can be specified as 1-100 (maximum channels 600!)
* Pan (binary panning, i.e. left/right side on/off)
* Pitch-bender with adjustable range
* Vibrato that responds to RPN/NRPN parameters
* Sustain (a.k.a. Pedal hold) and Sostenuto enable/disable
* MIDI and RMI file support
* Real-Time MIDI API support
* loopStart / loopEnd tag support (Final Fantasy VII)
* 111'th controller based loop start (RPG-Maker)
* Use automatic arpeggio with chords to relieve channel pressure
* Support for multiple concurrent MIDI synthesizers (per-track device/port select FF 09 message), can be used to overcome 16 channel limit
* Partial support for GS and XG standards (having more instruments than in one 128:128 GM set and ability to use multiple channels for percussion purposes, and support for some GS/XG exclusive controllers)
* CC74 "Brightness" affects a modulator scale (to simulate frequency cut-off on WT synths)
* Portamento support (CC5, CC37, and CC65)
* SysEx support that supports some generic, GS, and XG features
* Full-panning stereo option (works for emulators only)

# Links
* The source code of player: https://github.com/Wohlstand/OPNMIDI-Player-Java
* The source code of libOPNMIDI: https://github.com/Wohlstand/libOPNMIDI
* The OPN2 bank editor which allows you to create or modify WOPL timbre bank files: https://github.com/Wohlstand/OPN2BankEditor/

Ratings and reviews

This once had a mode labeled "experimental" that while active, made a lot of quantization noise. When set to CMF volume control, it was purely quantization noise, and when you put the gain factor to around 50 you could hear it loud and clear, which almost sounded like chiptune. I see it was removed. Sad, it was kinda cool.

If this could output the midi data so I could play my external sound module this would be very useful to me. The filename being visible in the UI would be nice as well as not repeating the song.

Very straight forward and no bugs. Can you add FMMIDI? Reply: Well, that was a fast response! Downloaded FMMIDI and currently playing rn! A question, what's your favorite YM2608 bank/emulator?

What's new

- Updated libOPNMIDI
- Fixed the work on Android 11+ systems
- Small tweak of default settings