Bug? - 1st and Last Plug-in in Bus Determines Length of Processed Bus... (Fixed)

Update...
 
I am able to reproduce this problem using only Cakewalk/Sonar Platinum plugins, as well. I created a Problem Report ticket, and uploaded a CWB file as an example.

That's what I thought, too. But it happens with VST2 plugins, too. I tried all VST2... same result.

See if adjusting Clip Tail Duration solves your issue.
 

For some reason I can't reproduce. The following is the scenario, yes?
 

 
So all I can do is guess at a solution...maybe I have different settings somewhere. In addition to what I mentioned above, try checking "Always Stream Audio Through Effects" under Preferences > Playback and Recording to see if that helps.

I just reproduced the problem on my master bus. When I moved the same FX to a track the reverb tailed off as per my decay settings.

I just tried a third time and found that the reverb tail playback was broken again. In this case, I deleted the EFX in the tracks feeding the bus and noticed immediately after that my bus no longer plays the bus reverb decay.
 
I thought, "a-hah, I'll put some EFX back on the source tracks"... so I did, but that didn't fix it.
 
I saved the broken project, closed SONAR, relaunched, and the bus reverb's decay is still cut off at the end of the source track's clips.
 
I am not sure why it is happening, but I do know that this would drive me crazy if I had Platinum installed on my DAW.

What reverb plugin are you using.

Craig... yes, that looks like similar to what I am doing and what I described that's causing the problem.
 
"Always stream audio through effects..." is on. Changing the tail length setting to 10 seconds didn't do anything.
 
Stretching the tail of a short clip does not fix the problem. However, just to check... I set up a long clip on a 2nd track with a send to the reverb bus, so that it starts just before the 1st clip ends, then turned down the 2nd track to barely audible... and the reverb tail works for the first track... I'm guessing since audio continues to stream into the bus from the 2nd track.
 
However, that doesn't explain why putting a short or no decay effect before and after the reverb causes the problem in any case, and removing either of those short decay effects, the reverb tail plays fine.
 
I've reproduced the problem on my system using quite a few different plug-ins, including a long repeat delay... the delay also stops outputting once the input to the bus stops.
 
The CWB file I sent to Cakewalk that has the problem on my system, has a bus containing Channel Tools > Breverb 2 Cakewalk > Boost 11.
 
The bus stops output when either (1) the short audio WAV file ends on the track, or (2) on a long track... say, just after a snare hit... the bus send is automated to go to zero output... the bus output audio stops as soon as the bus send track automation goes to zero output.
 
Quite annoying, when you've been working on multiple projects, that are fairly busy... and you've thought for a while (weeks) things weren't sounding right... and just now realize... it's because some of the reverb/delay buses are no longer working correctly. And I really have no idea when exactly it started happening. Maybe when Aux Tracks and Patch Points were introduced? Or maybe earlier even. No idea, really.

Yes, what I was trying to explain about the symptoms I saw today is that simply adding or deleting anything from any of the EFX bins seemed capable of triggering or fixing the cut of reverb tail problem.
 
It may be specific EFX or it may be how SONAR handles any EFX.
 
FWIW I have been testing with an extra long 20 second reverb decay so the missing tail issue seems plainly obvious when it occurs.
 

I tried substituting either all VST2 or all VST3, to try to make sure any kind of mismatch between the way they turn the input on or off wasn't the problem. I reproduced the problem with all VST2 and all VST3.
 
But I wouldn't doubt that it has something to do with the way Sonar is handling a dynamic input to the VSTs on the bus. It just shouldn't have anything to do with shutting off the output of the bus based on receiving an input... ever. The output of the bus should only be shut off based on if any audio is being generated anywhere before the output.
 
And, in the reverb case, for instance,... it was definitely outputting the reverb effect until the end of the WAV clip (or bus send automation, as the case may be). It's just that the bus output stops immediately when the WAV file ends.
 
I dunno. WAY over my head, as far as the programming of it all goes.

Try taking a combination that didn't work in a bus and try it in an Aux track or an audio track.
 
I'd try it myself but even using Channel Tools and Boost 11, I'm not able to duplicate.
 
Another thought: What happens if you double the latency (e.g., 128 to 256 samples)? I'm not saying that's the problem, but it could give a clue from a diagnostic standpoint. 
 
Also, I assume you're not using ASIO4ALL...right?

CWBRN-54320

nothing yet? I guess not. bug report still says it's not been looked at by cakewalk staff. has cakewalk been able to duplicate the problem? or tried yet?

thanks.

Day 4 of nothing... yes/no?... bug?... system problem?... anything?... hello. hello. is this thing on?

brundleflyAt best I think it must be a project/plug-in/system/config-specific bug, as I still cannot reproduce an issue with any of the reverbs bundled with SONAR.
 
If you want to share a copy of a demo project using only bundled plugins somewhere, I'll check it out.

Thanks brundlefly. Sent you a PM with link to the CWB file.