01170: piratpet, junglek, jungleh: First time you load the game, no attract mode sound.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
01170	Sound	Minor	Have not tried	Feb 12, 2008, 08:04	Sep 22, 2016, 21:10

Tester	Thenasty	View Status	Public	Platform
Assigned To	Kale	Resolution	Fixed	OS
Status [?]	Resolved			Driver	taito/taitosj.cpp
Version	0.97u1	Fixed in Version	0.178	Build
		Fixed in Git Commit		Github Pull Request #

Summary	01170: piratpet, junglek, jungleh: First time you load the game, no attract mode sound.
Description	First time you load the game, no attract mode sound, but after inserting a coin and playing a game, the attract mode sounds works. Also after playing a game, let the attract mode continues up to 5 cycles, you will notice this: On the second and fourth cycle, when the Pete touches the pirate at the end and gets killed, no sound for getting killed. Then on the 5th cycle, there will be no more attract mode sound and if you insert a coin and play a game, ALL THE SOUNDS ARE GONE (Coin Insert, Dying, Swinging, Swimming, Oxygen, Killing Shark, Diving, Jumping, Rock sounds, Snake sounds etc... ) except for the music background. junglek: When game first loads, attract mode has no sound, but after inserting a coin a playing a game, attract has sounds (except Tarzan Yell). jungleh: When game first loads, attract mode has no sound, but after inserting a coin a playing a game, attract has sounds (except the Beginning Music).
Steps To Reproduce
Additional Information
Github Commit

Flags	Verified with Code
Regression Version
Affected Sets / Systems	piratpet, junglek, jungleh

Attached Files

No.13174 Kale Developer Sep 16, 2016, 18:14	Turns out that this game uses an unimplemented feature of the sound CPU, which disables entirely attract mode sounds.
No.13200 Lord Nightmare Developer Sep 22, 2016, 21:10 edited on: Sep 22, 2016, 21:12	Actually, the game used a formerly unimplemented second sound cpu semamphore to tell the sound cpu not to accept any sound effect commands during attract mode, and the fact that attract mode would produce sounds at all after you die was a bug, now attract mode is always silent no matter what. There is a SECOND, still (as of 20160922) unimplemented feature of the main cpu "SOUND STOP" which suppresses all sound by overdriving/clipping the final board amplifier, which is not yet implemented. This is done to prevent spurious coin-up sound effects when first turning on the game, and the lack of emulation of this is what causes a bogus coin-up sound effect in time tunnel.

No.13174

Kale

Developer

Sep 16, 2016, 18:14

Turns out that this game uses an unimplemented feature of the sound CPU, which disables entirely attract mode sounds.

No.13200

Lord Nightmare

Developer

Sep 22, 2016, 21:10

edited on: Sep 22, 2016, 21:12

Actually, the game used a formerly unimplemented second sound cpu semamphore to tell the sound cpu not to accept any sound effect commands during attract mode, and the fact that attract mode would produce sounds at all after you die was a bug, now attract mode is always silent no matter what.

There is a SECOND, still (as of 20160922) unimplemented feature of the main cpu "SOUND STOP" which suppresses all sound by overdriving/clipping the final board amplifier, which is not yet implemented. This is done to prevent spurious coin-up sound effects when first turning on the game, and the lack of emulation of this is what causes a bogus coin-up sound effect in time tunnel.