I got skipping sound when I FMOD with use WinMM support and I do something (like opening a program, minimizing it, etc…).
This doesn’t happen with DirectSound support. I know that DSound should be more stable than WinMM (as FMOD documents says), but WinMM seems to be a bit too unstable!
For example, I use modplug player with WinMM support, and I get no skips during playback.
Is there a workaround for this? I prefer WinMM to DirectSound for two reasons:
1) Less overhead;
2) It works even if there is another DSound device that took control.
Brett, came here! Help me!
Do you have the problem in other programs too (cracking sound),
because this would be a problem with the combination SBLive and VIA chipset (for K6-II at least, my problems were solved with a Athlon on a newer VIA chipset)
If it’s really skipping, then I should think it’s some sort of priority issue.
I think the problem has something to do with the hard-disk not being able to follow…
Maybe you could add some statistics functions as Media Player has, that tell you how many frames were skipped/too late/…
Also, you should make a function to set the file buffer size, so you could specify a memory buffer of 1MB (for example) for streams.
Then you read small piecxes of this buffer and decode them, so you can get a sound latency as low as 25 ms for all dsp/sound operations, but still have a good buffer that solves harddisk problems.
- Adion answered 17 years ago
Nope! I have no problems with other software (I use modplug player/tracker, madtracker, rebirth, winamp,…)
As I said, the problem happens when I minimize, for example, a window: minimizing a window is a heavy task because that stupid animation (the window that fall down) has the highest priority: everything is stopped until the animation is finished…
I also think that it is a problem with priorities, but I tried anything I could try under this aspect, and I got no results…
It happens also with FMod sample program that comes with the the API.
Try to play an MP3 from a CD and make that CD busy, for example, with a huge file searching and you’ll get the same problem!
What u said is right, but I think that a little buffer for this kind of purposes can be used. If we have MP3, for example, 128 kb of buffer are around 8 seconds of sounddata. Users can manage this buffer as they like. I think it works better if I browse CDs while playing an MP3 from it. The buffer of an MP3 frame or a bunch of frames is too little.
I got the same problem (skipping sound) on all computers in my office. They are Win98 and Win2000 with different sort of sound cards (SBLive, integrated cards, C-media…) with latest drivers (even for Video cards) and latest service pack for all OS.
I use FMOD.EXE as a reference to do all my test, it skipping sound….espacially when using InternetExplorer and use PageUP/DOWN on a large HTML file or when accessing a large directory with Explorer.
After that I try to do a simple thing, modifying the FMOD (Delphi AND with VisualC++ versions) to load then entire MP3 file in memory and (never know) set the buffer size to 500, 1000, 2000…etc.
The ONLY constant on all the computers that I try FMOD on is…… VIA chipset.
A little precision, the overall computer speed is not in cause, I got a 1GHz Pentium 3 with 512Mo and a ATA-100 HardDrive.
I use :
– FSOUND_Stream_OpenFile(MyBuffer, FSOUND_NORMAL or FSOUND_LOADMEMORY, size);
– FSOUND_OUTPUT_WINMM and FSOUND_OUTPUT_DSOUND (with the same result)
I know, but:
1) The same buffersize works good w/ Dsound but doesn’t w/ WinMM
2) Even if I increase the buffersize, it always skips …
I’m doing a player in Visual Basic and, as I said, I prefer WinMM instead of DSound… There are no workarounds?
P.S.: There is a little bug in XM player: when there is a “stop note” and a sample number on the same row in the same channel the note isn’t stopped…
I tried also with a 1000 ms buffer and I got the same problem!
However my drivers are latest ones. (SBLive Basic has latest SBLive 5.1 drivers and my Geforce 2 MX has detonators 21.81…)
I got the problem only when I do something “heavy”, like minimizing or maximizing windows…
Please login first to submit.