Could you try 2.0.2 again? I want to be clear in 2.0.2 if the export is crackly a) if you don’t swap the track positions (b) if you do swap positions. Don’t worry about whether you play the project before export or not.
Thanks. And if you swap the track positions in 2.0.2, does the export crackle?
By the way, to make sure we are testing the same versions, do please Audacity > Quit Audacity before launching a different version of Audacity. If you have one version of Audacity running then launch a different version, all that happens is that a new window open in the version that is already running.
Thanks, Koz. “Before zero” is not a reported problem. The issue in Ken’s project that causes playback problems is that the upper track’s audio does not start at zero (if you zoom out you can see the first track does not start until about 10 minutes 20 seconds).
More generally, there are said to be problems playing at any point on the Timeline where not all the tracks have audio. But I rarely find that. In the subject project, the crackling at the start stops for Ken and I merely by moving the upper track down.
I can reproduce the problem — in either Audacity 2.0.3 or 2.0.5. Doesn’t appear to make any difference.
I could have done with a test that didn’t have crackles and pops as part of the performance…
Just once I got a playback destroyed — digital garbage for the first second and then it straightened out.
The condition is very erratic. I can change the condition reliably by View > Fit Vertically or changing the track sizes manually. It seems to have track sizes it likes or not — and it’s not repeatable.
I’ll make a recording of the tests.
15" Macbook Pro
First Birthday 2013-01-24 although I had it long before that. I think it’s listed as a 2012 MBP.
250GB SSD 102GB used
8GB hardware memory
Audacity 2.0.5 or 2.0.3
If you close and reopen the project then export WAV, do any of 2.0.2, 2.0.3 or 2.0.5 produce crackle in the exported WAV? Ken gets crackles in the exported file unless he goes back to 1.3.13. I can hear the crackle in the exported WAV even on Windows, so the damage is genuine, but the project does not crackle on Windows.
Here it is. Real time capture. All I was doing was pressing space-bar stop and start. I took the pauses out where I tried moving things around the screen. The end piece is a music proof. It was a download. Thats the whole pathway from iTunes in the Mavericks machine to a recording on my Mini “TV set.”
This particular time the problem exhibited nearly every other start. It’s completely random.
The Mavericks machine isn’t running anything else. I think we proved long time ago it didn’t seem to be a machine overload problem or dependent on other applications.
I exported a WAV from both 2.0.5 and 2.0.3. The 2.0.5 wav appears to be perfectly clean (for the first ten seconds). The 2.0.3 export, however, is a Little Bit Dirty. Starts off clean and then exhibits a little crackle here and there. I suspect if I did it enough times I’d get the same variability I get in the playback crackles.
Today’s playback variation is two crackles and one clean, two crackles, etc.
Yes it seems that you cannot depend on 2.0.2 or later on Mavericks to play or export that project without the crackles.
Do you agree if you drag the “Evan” track down to second track that the playback problem reliably goes away in 2.0.2 or later on Mavericks?
Before I raise a report on this, do you have a Mac Pro (or any Mac) with earlier than OS X 10.9 on it? Ken’s project was the first project including white space that I could get repeatable playback problems on, but when I tried other projects before I was not on Mavericks.