03933: gunforce: Some sampled sound fx play at the wrong frequency/speed.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03933	Sound	Minor	Always	Jul 8, 2010, 03:05	Jul 10, 2010, 16:24

Tester	Sune_S	View Status	Public	Platform	MAMEUI
Assigned To		Resolution	No change required	OS	Windows Vista/7 (64-bit)
Status [?]	Closed			Driver	irem/m92.cpp
Version	0.138u3	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	03933: gunforce: Some sampled sound fx play at the wrong frequency/speed.
Description	The laser weapon firing and the screams are the most obviously wrong sounds.
Steps To Reproduce	Just play the game for a while. The scream sound plays when you blow up a helicopter. It sounds like the sound fx in Lemmings.
Additional Information	Some sounds seem to be okay but I can't say for sure. Stefan Lindberg probably has the PCB.
Github Commit

Flags
Regression Version
Affected Sets / Systems	gunforce

Attached Files	gunforce_gameplay.mp3 (11,809,017 bytes) Jul 10, 2010, 07:47

No.06352 Tafoid Administrator Jul 8, 2010, 18:43	Unless you have some recording (OST or PCB recording) to prove otherwise, I'm not convinced there is an error. There are separate samples of different screams - each one (I counted at least 3) were at different speeds and pitch.
No.06353 Sune_S Senior Tester Jul 8, 2010, 23:46	Your call. Personally, I'm sure they're not supposed to sound like chipmunks. I'm hoping Stefan Lindberg sees this, maybe he has the PCB, judging by other reports he owns several IREM Mxx system games.
No.06354 Tafoid Administrator Jul 9, 2010, 00:21	His page doesn't list it .. but you never know :) In the meantime, I'm hunting for some source videos that AREN'T mame. So hard to for the more obscure games.
No.06355 Stefan Lindberg Senior Tester Jul 9, 2010, 18:31	Here is a gameplay recording from my PCB: http://www.ym2149.com/arcade/gunforce_gameplay.mp3 I have all M92 games except Perfect Soldier and Dream Soccer :-)
No.06357 Tafoid Administrator Jul 9, 2010, 18:59 edited on: Jul 9, 2010, 19:00	About 3:12, 5:50, 5:54 shows a higher pitched scream. About 0:25 shows the highest pitched scream (most likely, that tank on the first level). The gun shooting FX, as well, seems to be the same as MAME's output. Thank you very much, Stefan, for providing this reference recording!
No.06358 Fujix Administrator Jul 10, 2010, 08:05	At 0:25, it is sound when a player destroyed the first enemy jeep, MAME sounds the same as the original. And for laser sounds from the player helicopter and the enemy base, they also sound same for me.
No.06359 Sune_S Senior Tester Jul 10, 2010, 14:28	Excellent, thanks Stefan. I recorded the screams from the game running in MAME and compared them to Stefan's recording and they sound the same to me as well. Case closed I guess.