1.2 KiB
VAG files
VAG is the PlayStation single waveform data format for ADPCM-encoded data of sampled sounds, such as piano sounds, explosions, and music. The typical extension in DOS is “.VAG”.
See http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf, p.209
WAV creation
Use ffmpeg to create a 16-bit ADPCM mono WAV file - change -ar to reduce filesize (and quality)
$ ffmpeg -i input.mp3 -acodec pcm_s16le -ac 1 -ar 44100 output.wav
You can use Audacity to edit sound.
WAV to VAG convertion using WAV2VAG
Get here : https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c
Change -freq according to the -ar setting above
$ wav2vag input.wav output.vag -sraw16 -freq=44100 (-L)
Bug ?
After conversion with WAV2VAG, the resulting VAG will sometimes have a pop at the very beginning and/or end of the file.
You can check (and delete) this with PsyQ's VAGEDIT.EXE.
You can also force the sampling frequency of an existing VAG file.
VAG & SPU Docs
See
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libformat47.pdf p.209
-
libover47.pdf, p.271
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libref47.pdf, p.980