2019-02-21 06:40
ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs:
https://freenode.irclog.whitequark.org/~h~yamahasynths
00:44
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Lord_Nightmare >
ValleyBell: is the format the same as the la32 uses for pcm, i.e. log-pcm?
00:44
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Lord_Nightmare >
if it is, you could just call it Roland LogPCM or something
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06:40
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andlabs >
they had bonus brand floppies in japan?
06:40
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andlabs >
also I did not know yuzo koshiro only started writing game music in 1986
06:41
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andlabs >
would have assumed he started earlier than that lol
06:41
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andlabs >
I'm going to bed now; good night
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07:10
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ValleyBell >
Lord_Nightmare: No, the format is different from LA32.
07:11
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Lord_Nightmare >
huh
07:12
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ValleyBell >
It's still logarithmic, but samples are 8-bit.
07:12
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ValleyBell >
LA32 uses 16-bit samples
07:14
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ValleyBell >
Maybe I could just go with "Roland LP" and for the MT-32 we would go with "Roland LA"
07:16
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Lord_Nightmare >
well technically la32 uses 15-bit samples; the lowest bit of the pcm roms seems to always be 0
07:17
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Lord_Nightmare >
I'm interested in knowing what the algorithm is, since there's some odd logpcm sample formats we haven't figured out yet in general
07:17
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Lord_Nightmare >
like the "OKI II" format used on msm6295
07:18
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Lord_Nightmare >
which i don't think any game uses
07:18
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Lord_Nightmare >
but the chip supports it and its undocumented
07:43
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Lord_Nightmare >
thanks!
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