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ppeccin / WebMSX

WebMSX - Online MSX Emulator
https://webmsx.org
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PSG emulation sometimes off #25

Closed TFHFony closed 5 years ago

TFHFony commented 7 years ago

I've noticed that the PSG emulation is sometimes off or incorrect. Two games that show this very well:

http://www.file-hunter.com/MSX/index.php?id=alibaba Here the music is just off. The original game seems to play with the pitch of the notes a bit, generation a more eastern note-set.

http://www.file-hunter.com/MSX/index.php?id=chuckieegg In this game, after the welcome noise, the PSG just goes crazy. I've tested about 10 versions in WebMSX and they all have the same problem, while functioning OK in multiple OpenMSX configurations.

Both games do display a warning in OpenMSX that they show behaviour which could damage the PSG in old systems. Maybe the PSG emulated in WebMSX is of that "older" type?

oh-ren commented 7 years ago

Related: #2

ppeccin commented 7 years ago

Hum... Interesting. I don't have any idea right now what could be the issue. But I will do some tests about that when I start working for the next release.

TFHFony commented 6 years ago

Maybe usefull for testing: Another game that really has sound issues on WebMSX: http://www.planetemu.net/rom/msx-various-dsk/thing-bounces-back-1987-gremlin-graphics-software-3

TFHFony commented 5 years ago

This problem seems to be solved now :)

ppeccin commented 5 years ago

Really? :-)

On Mon, Feb 11, 2019 at 11:50 AM TFHFony notifications@github.com wrote:

This problem seems to be solved now :)

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/ppeccin/WebMSX/issues/25#issuecomment-462333747, or mute the thread https://github.com/notifications/unsubscribe-auth/AArloEhhn8Yh4W67TI9yvvcTT9QtphBFks5vMXU9gaJpZM4PdhPs .