Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06979 Sound Minor Always 30 days ago 27 days ago
Tester Planestate View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10 (64-bit)
Status [?] Confirmed Driver namcos1.cpp
Version 0.197 Fixed in Version Build 64-bit
Summary 06979: splatter, galaga88, etc.: Huge audio crackle upon start
Description If you are using port audio, it will also make sound playing other than MAME crackle (e.g. music you are listening to going haywire while the crackle lasts).

Using "auto" instead of "portaudio" still has crackle issue, but not as much.

If you load any saved states, this does not happen.

Not sure when this started happening.
Steps To Reproduce
Additional Information
Flags
Regression Version
Affected Sets / Systems splatter, galaga88, etc.
Attached Files
 
Relationships
related to 06891Acknowledged There's audio stuttering ("pops") in some tracks. 
related to 06931Acknowledged Possible sound engine issues with some drivers and machines 
Notes
3
User avatar
No.15043
B2K24
Moderator
29 days ago
I don't believe this report is a valid one as results with PortAudio basically boil down to what hardware you're using.
What are you using as far as pa_api, pa_device, and pa_latency goes? A verbose output would be useful.
User avatar
No.15045
Planestate
Tester
28 days ago
sound portaudio
audio_latency 1

pa_api "Windows WDM-KS"
pa_device default
pa_latency 0.003334
I've tried using pa_latency 0.00001, and/or "Windows WASAPI", but none of them work output the sound right (on any machines) on my setup.

The crackle is still audible if default sound system is used, just not as bad as when portaudio is used.
I tried it on a different rig, and audio crackle is still present at launch.
User avatar
No.15046
wuemura
Viewer
28 days ago
edited on: 28 days ago
I can hear this "pops" or "cracks" sound without portaudio, portaudio just make it worse.

Mame is having some issues with sound engine for the past 10 years or so, the issue is related with the FM sound engine, specific to Yamaha sound chips that I've noticed like YM2203, YM2151, YM3812, etc.
It doesn't sound like this will be fixed soon.

Confirmed.

Related?
http://mametesters.org/view.php?id=6891
http://mametesters.org/view.php?id=6931