You need 3.36 to use the F12 option (acutally, needs all the additional system vbs files as well), but yes, you can set it in the registry manually... find the rom name in the pinmame section, look for the 'volume' entry, 0 is 0 which is full volume... now comes the tricky part... the entry is a 32bit dword, so -1 starts at 4294967295 which is 2^32 - 1 (or 0xffffffff in hex), and subtract the additional amount you want to reduce the volume (for example -12 is 4294967284, or 0xfffffff4)
Edited by koadic, 10 October 2012 - 05:04 PM.




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