05354: tbyahhoo: Inaccurate K054539 audio emulation

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
05354	Sound	Minor	Always	Nov 5, 2013, 09:22	Nov 5, 2018, 19:13

Tester	Tempora	View Status	Public	Platform	MAMEUI
Assigned To	galibert	Resolution	Fixed	OS	Windows Vista/7/8 (64-bit)
Status [?]	Resolved			Driver	konami/konamigx.cpp
Version	0.150	Fixed in Version	0.154	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	05354: tbyahhoo: Inaccurate K054539 audio emulation
Description	All audio samples is played back without the proper echo effect applied by the K054539; the inaccuracy manifest itself as a crackling noise throughout playback. This is related to bug ID 04765 and 03656, containing games using the same audio chip exhibiting the same problem.
Steps To Reproduce	Listen to the game's voice samples and sound effects.
Additional Information	Reference material from this video link:
Github Commit

Flags
Regression Version
Affected Sets / Systems	tbyahhoo

Attached Files

No.09961 Phil Bennett Developer Nov 6, 2013, 20:21	All of the GX games should be marked GAME_IMPERFECT_SOUND as the TMS57002 has not been hooked up to process the output of the 054539s. To be honest, every game using the 054539 should be marked as GAME_IMPERFECT_SOUND as the emulation is somewhat flawed (imperfect DPCM decoding, gain levels and reverb to name a few)
No.11252 abelardator2 Tester Nov 15, 2014, 11:02 edited on: Nov 15, 2014, 11:05	I have the original PCB, you need an original audio recording? I also noticed poor sound in "Fantastic Journey". I have the original PCB "Gokujyou Parodius" and "Sexy Parodius".
No.15743 hap Developer Nov 5, 2018, 19:12	konamigx voice echo with TMS57002 was added in 0.154