 No.16935
Hydreigon Tester
Sep 19, 2019, 22:47
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I currently notice similar sound behavior in Virtua Cop 2. This never happened the last time I played this game in Mame. |
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 No.16937
Tafoid Administrator
Sep 20, 2019, 00:27
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While the machine is flagged as not having 100% sound, this does appear to be a clear regression. |
 No.18341
biggestsonicfan Tester
Jan 6, 2021, 18:27
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For posterity's sake, I would like to document the odd behavior in the vf2 clone set for "sfight" and parent "schamp" On a cold boot of "sfight" (or a Japan set region of "schamp"), the attract mode will play the incorrect music. The music that plays is labeled on the official soundtrack as "CHARACTER SELECT ~ BONUS TRACK" or "GET INTO THE WAVE" and it's official index number in the game is "0" with a code of "0xAE1000". Also, sound id "67" known as "SD_COMPUTER_1" with a code of "0xAE113D" will not play when it is supposed to. A soft reboot (F3) or entering and exiting the service menu will play the correct track in the attract mode labeled as "ADVERTISE ~ K.I.Y.O." which is index number "16" with with a code of "0xAE1010". It should also be noted that allowing the game to continue running until the attract intro loops again, the correct music will also play that time around. "SD_COMPUTER_1" will also play at it's appropriate time in both of these cases as well. On a cold boot of "schamp" (or a USA set region of "sfight), the attract mode will play no music and, and will exhibit behavior similar to the vf2 issue where the punch sound continues to loop. In this case the looping sound is "SD_COMPUTER_1", the sound that did not play previously with the Japan region set. The sound id that stops this sound, id "68" "SD_COMPUTER_1_OFF" code "0xAE1405" is never executed correctly, so the sound does not stop. The looping sound does stop when the attract mode reaches it's first demo fight. However, certain sounds within the demo fights may be repeated more than usual. Again here, if the game is allowed to run to show the attract cutscene again, the correct music plays and the "SD_COMPUTER_1" stops correctly. A soft reset (F3) or entering and exiting the service menu will play the music normally and not loop the sound effect. On a cold boot of "schamp" or "sfight" set to "EXPORT" region, bizarrely, none of these issues occur. Both the correct music play and the sound effect "SD_COMPUTER_1" does not continue to loop. There was also one instance in where I changed the region (I don't remember which one) and the attract cutscene played a different song than previously mentioned, but I could not reproduce this again. I hope these observations add a little more insight into what's going on and how to possibly go about resolving the issue. |
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No.21504
biggestsonicfan Tester
Jun 3, 2023, 02:53
edited on: Jun 3, 2023, 03:36
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I normally boot MAME with no sound as Model2 audio is incredibly choppy, but this issue seems resolved since at least 0.254? EDIT: Going through Windows builds, it seems 0.253 solved the issue for schamp (assumed others as well) EDIT2: Lots of work was done to the m68000 between 0.252 and 0.253, I can't trace down which specific commit fixed it but will look into that in a bit. |
 No.21512
Robbbert Senior Tester
Jun 5, 2023, 11:49
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If you can track it down it would be great. |