diff options
Diffstat (limited to 'BUGS')
| -rw-r--r-- | BUGS | 17 |
1 files changed, 12 insertions, 5 deletions
@@ -8,11 +8,18 @@ * Music plays back differently. - The DOS music code was not in the Doom source release as Doom used - a proprietary sound library. The mus <-> mid conversion mostly - works well but some patches are different. By closer examination - of which MIDI instruments are used by doom.exe, it may be possible - to get a closer conversion. + Vanilla Doom was typically played with a SoundBlaster (or compatible) + card. It programmed the registers for the OPL music chip directly + in order to emulate the various General MIDI instruments. However, + Chocolate Doom uses the OS's native MIDI playback interfaces to play + MIDI sound. As the OPL is programmed differently, the music sounds + different to the original, even when using an original SoundBlaster + card. + + This can be worked around in the future: OPL emulation code exists that + simulates an OPL chip in software. Furthermore, depending on the OS, + it may be possible to program the OPL directly in order to get the + same sound. * A small number of Doom bugs are almost impossible to emulate. |