 No.05216
Tafoid Administrator
Nov 29, 2009, 03:41
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The laser sounds the same since discrete emulation was added back in 0.114u2. Perhaps you were used to the old SAMPLE system which this game used up until that point. We'll need some reference recordings from original PCB/cabinet proving the case before we can continue. |
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 No.05217
Fujix Administrator
Nov 29, 2009, 04:08
edited on: May 31, 2012, 04:57
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Discrete sounds can vary between PCBs and pitch of the shot sound can be different in each one, but there seems to be a difference between the original and mame. |
 No.05218
Gyrovision Tester
Nov 29, 2009, 04:53
edited on: Nov 29, 2009, 05:09
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Something in this sound has changed, possibly in 0.134u3 but I can't find any plain vanilla binaries to test with. Compare sound in 0.134 official. |
 No.05220
blkwolf01 Tester
Nov 29, 2009, 09:57
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I tested with the official 0.134 build and it sounds exactly the same. It is only when I tested it with MAMEUI 0.135 did it sound slightly worse. |
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No.05221
Tafoid Administrator
Nov 30, 2009, 02:40
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I'll leave this open pending some input from those who work on discrete emulation. |
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No.06364
derrickr Developer
Jul 12, 2010, 12:28
edited on: Jul 13, 2010, 14:59
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The emulation is based on Midway Sound Board P.C. A084-90901-C851. Schematic # M051-00851-A005. As Fujix mentioned, there are numerous different sound boards for SI, all sounding slightly different. Plus there is also some filtering in the amp stage that is not emulated. I only ever simulate up to the amp stage. Use your own amp controls to reduce the treble. As for the complaint that the pitch of the shot sound is too high, all I can say is that someone would have to confirm all R/C values on a real PC are the same as in the schematic. I simulate from the schematic values. The real values may turn out to be different like they were in Phoenix. |
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No.13854
TServo2049 Tester
May 26, 2017, 15:55
edited on: May 26, 2017, 18:12
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I do also think the laser sounds too high pitched, I've listened to footage of real Midway and Taito hardware on YouTube and I can tell it's not accurate to a real machine in use. Not saying the schematic is wrong, but something is different. I've also observed that Taito boards have different sounds than the Midway ones in general. For example, the sound when you zap an Invader is definitely different on Taito hardware. (Midway is the rapid ZAPzapZAPzapZAPzapZAPzap, while Taito is just two pitches each played once - ZAP-zap or zaZAP - or occasionally low/high/low - zaZAP-zap). The Taito sounds are what carried to Part II (including the "Deluxe" Midway version), and every modern compilation or re-release Taito has done. The old sound samples set was also evidently recorded from Taito hardware. Compare the sounds in these YouTube clips of real Midway and Taito hardware. Midway (gameplay starts at 4:25) Taito (gameplay starts at 1:07): Midway Deluxe version of Part II (gameplay starts at 11:00): I do think it should be a to-do to write separate emulation for the discrete sound from official Taito boards, and implement it for at least the official Taito sets. But should that issue be its own bug? |