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Hi guys!
I have a possible fix from the VAC author. It seems to work for me — I’m running several concurrent pipelines without glitches, something I’ve never been able to do on this particular machine.
Anyone who has problems with glitches with Breakaway Pipeline, please try the following reg file:
[attachment=0:2exkip89]pipeline_fix_8-19-2009.zip[/attachment:2exkip89]
After applying the reg file, you’ll need to restart the pipeline driver. You can do this by shutting down Breakaway and all programs using any pipelines, then opening the Breakaway Pipeline control panel and clicking Restart.
Or, you could just restart the computer.
I would appreciate some feedback on this — if it solves the problem I’ll include the fix in future versions.
Best,
///LeifGood/bad news. I was still able to get it to stutter with that reg fix. But, that other virtual audio program I linked to in the other thread works much the same. Maybe it isn’t the program that’s at fault. But then the question becomes, what is it?
The problem for me hasn’t been the number of pipelines running (although I’ve never really tried that), but more to do with how much one pipeline is doing. For example, having music and one streaming encoder running might run ok, but then bringing a second or third streaming encoder into the equation could be enough to tip it over the edge ie stutter.
Maybe anyone who has the problem should post their machine specs and see if there’s a pattern.
The two I’ve had problems with are Pentium 4 HT. WDM becomes unstable and stutters, MME has had its problems (I hope it’s fixed now) but hasn’t had the stutter issue.
The problem I’ve experienced seems to happen mostly on quad core systems. Once you open a couple of pipelines (or open one pipeline multiple times!), things can go into an extremely stuttery state where only bits and pieces of audio slowly come through.
The new pipeline version completely fixed that problem on my quad core desktop. I was quite disappointed when I discovered the problem was still there on my laptop! The parameter that the reg-key set was supposed to be on by default — perhaps something went wrong there. At Eugene’s suggestion (the VAC author) I set the key manually in my registry yesterday, and since then it’s been MUCH better.
I actually let BBP -> MpxTool run all night, and there was not a SINGLE glitch! Just beautiful.
This parameter keeps the pipelines single-threaded (single cpu affinity) when talking to windows, to avoid confusing windows (portcls.sys), which apparently has been the problem all along.
It’s possibly that Lpy’s issue is something different! How long have you had the issue?
///Leif
I first had the issue back before Breakaway; VAC 4.08 and Volume Logic. Everything was fine for a couple of days and then it would randomly start stuttering and wouldn’t recover until I attended to it.
There is something I forgot to mention that could help work this out… say for example Winamp was playing when it began stuttering, it would run in slow motion. The pitch would remain the same, but the tempo would slow right down, hence the stuttering effect.
VAC 3.12 has not does this at all and has been fine up until a couple of weeks ago for some odd reason. So, I just did a reformat, reinstalled everything, and gave that other virtual audio program a go (the link I posted from the other thread).
Using their equivalent of VAC’s "audio repeater" program, in addition to the encoders running, was enough to begin the stutter. It would’ve eventually done it anyway, I just sped up the process adding the audio repeater thing to the mix, so-to-speak 😛
That audio repeater program itself isn’t the actual cause of the stuttering – anything would do it – that’s just an example of adding another program to the pipeline and throwing it off the edge.
I tried the Breakaway Pipeline, with your added registry entry… same thing.
Back on VAC 3.12 now, and everything is fine. If the reformat fixed whatever issue I was having, this will run fine for months.
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