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Psygnosis DAT / WAV files from Formula 1 (1995, PC)
Posted: Mon Jun 03, 2019 3:06 pm
by PTRACER
Using Game Extractor, I managed to extract the WAVs from the DAT but the files still won't play properly.
The header is interesting, since it says RIFF WAVEcmp rather than WAVEfmt. Also the data following suggests it's a mono @ 22050. Problem is nothing seems to understand it.
I can just about hear the sound through the garbage if I import it at 11025. Any thoughts?
https://www.4shared.com/postDownload/ez ... OER02.html
Re: Psygnosis DAT / WAV files from Formula 1 (1995, PC)
Posted: Sat Oct 19, 2019 8:54 pm
by DrMcCoy
Mid 90s, so probably some ADPCM codec. Try opening it as raw IMA ADPCM in Audacity. Or extract the contents of the data (or cmp) chunk prior, and open that in Audacity.
It that sounds exactly right, bingo. It it sounds slightly like it should, you need to figure out which exact ADPCM scheme it is and what the parameters are. There the fun begins, because there are a million of different variations out there.
Re: Psygnosis DAT / WAV files from Formula 1 (1995, PC)
Posted: Tue Oct 22, 2019 3:50 am
by Pingu
DrMcCoy wrote: ↑Sat Oct 19, 2019 8:54 pm
Mid 90s, so probably some ADPCM codec. Try opening it as raw IMA ADPCM in Audacity. Or extract the contents of the data (or cmp) chunk prior, and open that in Audacity.
It that sounds exactly right, bingo. It it sounds slightly like it should, you need to figure out which exact ADPCM scheme it is and what the parameters are. There the fun begins, because there are a million of different variations out there.
If you look closely enough at the file in the hex editor, you can see the stream is compressed with ZLIB I believe, not IMA codec. So, the data of the stream will need to be decompressed before anything can be used.