#8799 closed patch
Improved sound playback for Amiga SCUMM V2/V3 games
| Reported by: | SF/quietust | Owned by: | Kirben |
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| Priority: | normal | Component: | Engine: SCUMM |
| Version: | Keywords: | ||
| Cc: | Game: |
Description
The current sound code for Amiga SCUMM V2/V3 games (i.e. Maniac Mansion, Zak McKracken, Indiana Jones and the Last Crusade, and Loom) makes use of the RateConverter class to handle playing the various audio samples at custom sample rates. Unfortunately, said class is not capable of changing input frequency on the fly, so a hackish workaround had been used which involved deleting/recreating the rateconverter on each frequency switch (which caused significant degradation of sound quality, due to the 512-sample buffer being flushed every time).
This patch implements an unbuffered linear resampler for Amiga SCUMM V2/V3 audio, capable of dynamic frequency switching. Pitch-bending sound effects in Maniac Mansion and Zak McKracken sound much better as a result, and music in all 4 games seems to pop a bit less than it did before.
It should also use a bit less memory, though probably a bit more CPU time.
Ticket imported from: #1891606. Ticket imported from: patches/904.
Attachments (1)
Change History (5)
by , 16 years ago
| Attachment: | amiaudio.dif added |
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comment:2 by , 16 years ago
| Owner: | set to |
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| Status: | new → closed |
comment:3 by , 16 years ago
Note that the patch did/does not comply to our code formatting conventions. So somebody has to clean it up now in VN.
comment:4 by , 5 years ago
| Component: | → Engine: SCUMM |
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Amiga audio patch