This is a port of the sound library written by Kazuki Muraoka for Metal Gear Solid.
This library was later expanded for Metal Gear Solid 2 as well as the Zone of the Enders series.
The library includes a PlayStation SPU emulator for audio synthesis.
This is adapted from rpsx's SPU implementation.
The following sources were referenced to improve rpsx's SPU implementation and fix bugs:
- nocash's psx-spx hardware documentation.
- DuckStation's SPU implementation.
- Mednafen's reverb implementation.
This project is still very much a work-in-progress. Expect some songs to sound slightly (or very) incorrect.
This project supports both FLAC and Opus Ogg output.
libflac-dev libopusenc-dev
make
raven [-d] [-r] [-l loops] [-s song] -o output -e encoder mdx wvx [wvx2] [wvx3]
One mdx file and up to three wvx files can be provided:
- mdx files contain the sequence data for songs.
- wvx files contain the waveform data for songs.
The resident wvx file wv00007f.wvx located in the init stages contains common samples used by all songs.
Some songs require additional wvx files, these are found in the same stage as the mdx file.
The following options are supported:
-d Enables debug output.
-r Forces reverb off.
-l loops Specifies the number of times to loop the song.
-s song Specifies which of the songs from the sequence data to play.
-o output Specifies the name of the output wave file.
-e encoder Specifies the encoder to use. ("flac" | "opus")