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(In reply to Paul L from comment #14) > Perhaps, then, this bug should be left open but with less priority until > further performance improvements can be found? Is it this bug or a more general one that typing in a label is too CPU expensive? On the 1 GHz machine typing a character into one of 1500 labels takes 75% even with Karaoke closed. It takes 65% even with one label, but with one label there is no performance impact. With 1500 labels, no Karaoke, 75% usage, it takes 1 second for the typed character to appear. With 1500 labels, karaoke, 100% usage, it takes 2 seconds for the typed character to appear. There is an old resolved bug 406 for label (and other) slowness where I think the only changes made were to reduce the amount of autosaving. However that alone made a dramatic improvement. It looks like redrawing less of the track panel was not attempted. I note that typing a character in an almost empty text document produces a 90% spike on the 1 GHz machine. So perhaps this is not really anything to worry about. What do you think? -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to audacity in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/529337 Title: Hangs for a long time when editing labels on large files Status in Audacity: Fix Released Status in audacity package in Ubuntu: Triaged Bug description: Binary package hint: audacity How to trigger this bug: 1) Create a fairly long audio file (in this case 45 minutes) 2) Create a label track with a bunch of long labels in it (i.e. transcriptions) 3) Try to edit the text in one of the labels, preferably the first one Audacity will freeze for quite a long time. Actually label editing has a bunch of problems but this one is particularly bad... It turns out that the code that's responsible is the "experimental lyrics window", which can be shown when you choose "Karaoke..." from the View menu. You can easily disable this "feature" by commending out the EXPERIMENTAL_LYRICS_WINDOW line in src/Experimental.h, which makes it possible to edit label texts. But I'm sure some people out there actually use it... ProblemType: Bug Architecture: amd64 Date: Sun Feb 28 00:57:02 2010 DistroRelease: Ubuntu 9.10 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) NonfreeKernelModules: nvidia Package: audacity 1.3.9-6 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-12.16-generic SourcePackage: audacity Uname: Linux 2.6.32-12-generic x86_64 To manage notifications about this bug go to: https://bugs.launchpad.net/audacity/+bug/529337/+subscriptions
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