ABelliqueux/nolibgs_hello_worlds
1
0
Fork 0
Code Issues 1 Pull Requests 1 Projects Releases 1 Wiki Activity

Generate clean VAG file

Browse Source
This commit is contained in:
ABelliqueux 2021-08-14 11:46:28 +02:00
parent c5af972fec
commit eb638ed515
1 changed files with 9 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
VAG/README.md
View File

@ -6,34 +6,20 @@ piano sounds, explosions, and music. The typical extension in DOS is “.VAG”.
See [FileFormat47.pdf](http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf), p.209
## WAV creation
## Audio to VAG conversion
Use ffmpeg to create a 16-bit ADPCM mono WAV file - change -ar to reduce filesize (and quality)
We have to convert the audio file to RAW data first :
```bash
$ ffmpeg -i input.mp3 -acodec pcm_s16le -ac 1 -ar 44100 output.wav
ffmpeg -i input.mp3 -f s16le -ac 1 -ar 44100 tmp.dat
```
You can use Audacity to edit sound.
## WAV to VAG convertion using WAV2VAG
Get here : [WAV2VAG](https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c)
Change -freq according to the -ar setting above
then use [`wav2vag`](https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c) to convert the data, making sure the `-freq=` parameter matches the `-ar` value used above :
```bash
$ wav2vag input.wav output.vag -sraw16 -freq=44100 (-L)
wav2vag tmp.dat output.vag -sraw16 -freq=44100
```
### 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.
## VAGedit
You can find a graphical editor in the [PsyQ sdk](http://psx.arthus.net/sdk/Psy-Q/PSYQ_SDK.zip) named `VAGEDIT.exe`.
@ -46,3 +32,7 @@ See
* libref47.pdf, p.980
* [http://psx.arthus.net/code/VAG/](http://psx.arthus.net/code/VAG)
## Ressources
* [wav2vag utility](https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c)