drawing tempo changes causes audio problems

what a shame, can't access to the web site.

I've experienced that effect when using the Sonitus Delay in tempo-sync mode. If you freeze the synth output and examine the waveform, you'll see that there are abrupt changes that don't occur on a zero-crossing and that's what you're hearing. You might check and see if you have any tempo-synced effects on the track. My workaround has been to either a) don't use the tempo-sync option or b) automate the tempo sync option so it's turned off during the tempo transition.

Altiverb is tempo-aware, and there is apparently a known problem with Altiverb and tempo changes. Sorry, I am not an Altiverb user (not that rich) so I can't tell you where to look for the button to turn it off. But there are many Altiverb users here, so maybe one of them can offer more specific advice.

MCS, I posted the link to your thread at the Garritan Forum, asking if any Altiverb users there could provide an answer.

One user went to the trouble of posting a flute with no Altiverb, and then the same passage with Altiverb and some rather severe Tempo changes.  There were no artifacts in the least.  It seems like a good demonstration that there has to be something else besides Altiverb itself involved with your problem.

Nobody I've come across yet has heard of this being a "known issue" with Altiverb.

One idea is that you may not be using Altiverb in the way it was designed --which is to use the stereo stage and the speakers which represent how distant an instrument is from the edge of the stage.

Another theory is that the problem is caused by the fact that Altiverb is a 32 bit app which is perhaps not being bridged successfully by Sonar's Bitbridge, or Jbridge, whichever one you're using if you're in Sonar 64 bit.

Randy B.

MCS


Hi all!
 
I am using Sonar PE 8.5.3 and i am working on a project with some VSTi. Everytime i draw a tempo change (curve) in the tempo view i am getting problems with the audio which sounds like a tremolo when i want to play back the project.
 
heres a little example. When the flute plays alone there´s a tempo change (linear curve) which i created in the tempo view. This occurs on all such tempo changes.
 
http://www.schrattbauer.net/music/Temposchange.mp3
 
Can anybody help me?
thanks,
Michael.

Hi, Michael

I personally have stopped using the "tempo awareness" feature with my VST's because of the frequent yet odd problems I get, e.g. with the Sonitus delay etc. Some days it works fine, the next day it's all about gargle and distortion. I just wish the whole tempo management & audio snapping part would be redesigned in Sonar so that it worked well.

Sorry for not being able to be more helpful with your particular problem.

Jyri

rbowser


So that person is saying that he/she finds there to be a problem with Altiverb being bridged correctly in Sonar 64bit,

In which case it may be worth trying JBridge

ce1982


Altiverb always caused zipper noises in Sonar when using tempo changes. It's not x64 related. Don't expect a fix anytime soon.

Well, ce, I'm rather sure that is a gross exaggeration.  Why haven't I ever heard of a problem like that from my Altiverb/Sonar using friends?

Randy B.

duplicate post

Hi, CE - Did you see that I immediately updated my post?  On the Audio Ease Forum, a company guy admits the bug and says he has no idea when it'll be fixed.

I've been interested in this topic, and have cross-pollinated this Sonar Forum and the Garritan Forum with posts about it.

At this point it appears to be a problem enough people have for it to be a glitch/bug, as the Audio Ease administrator guy admits.  But not everyone has the same experience - something which is so often true with glitches--It can be inexplicable why some people will have problems that other people don't.

At the Audio Ease Forum, someone posting on this tempo glitch problem says that it's only in 64bit, and their work around is to stick to 32bit where it works.  But then some people, like you CE, can't make it work right even in 32bit.

Here's the current Garritan Forum thread on this topic:

http://www.northernsounds...nt-Altiverb-guru-DPDAN

You'll see on post #6, a very helpful guy put together a demo of how everything works fine for him in Sonar 32 bit, 64bit OS.  He has two audio clips posted, before and after, plus a screenshot of his tempo list.  It's maddening - but there it is, proof that not everyone has this happen.

Randy B.

rbowser


At the Audio Ease Forum, someone posting on this tempo glitch problem says that it's only in 64bit, and their work around is to stick to 32bit where it works.  But then some people, like you CE, can't make it work right even in 32bit.


Randy B.

I know it won't be fixed soon that's why I wrote that, I didn't make it up.
The bug has been around in 32b for years & not just x64 related. It's not new, if you don't believe fine. Try the demo yourself & see what happens.

rbowser


Pretty bad thing though for such a prominent, expensive program to have this problem.  Pretty incredible in fact.

Randy B.

 It has it's share of bugs & problems like any other software out there, including Sonar.