Public bug reported: Binary package hint: soundconverter
When I convert FLAC files to Ogg Vorbis using Soundconverter, audible artefacts are introduced at every ~40,5 seconds in the form of short breaks in the stream. These are slightly noticeable in Mplayer (1.0rc4-4.5.2) and very noticeable in Totem (2.32.0). They also cause my Sandisk Sansa Clip+ portable music player to pause and skip to the next track. So far I've only found this problem to occur when encoding FLACs directly to Vorbis. I've been able to reproduce it with several different source files from different artists and albums, originally encoded by both me and others. It does not occur if I first decode the FLAC to WAVE using 'flac -d <file.flac>' and then compress the WAVE file to Vorbis. Nor does it occur if I convert the same FLAC source to MP3. Here are a few files encoded with different bitrates: http://www.nastalektion.se/dump/01-Hunab_Ku-64k.ogg http://www.nastalektion.se/dump/01-Hunab_Ku-128k.ogg http://www.nastalektion.se/dump/01-Hunab_Ku-256k.ogg and the source: http://www.nastalektion.se/dump/01-Hunab_Ku.flac I'm fairly sure that this bug is a regression. Here's a file I encoded with Soundconverter a year ago, without audible artefacts: http://www.nastalektion.se/dump/01_-_Don_t_Tell_Me_That_It_s_Over-20100614.ogg Here's one I encoded today with more or less the same settings, from the same source. This has the choppiness every 40,5 seconds I mentioned earlier: http://www.nastalektion.se/dump/01_-_Don_t_Tell_Me_That_It_s_Over-20110613.ogg And the source: http://www.nastalektion.se/dump/01%20-%20Don't%20Tell%20Me%20That%20It's%20Over.flac Please note that all the files I've linked to are copyrighted to their respective owners. Only use them for educational purposes, such as for solving this bug. Please don't spread them on. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: soundconverter 1.4.4-2 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 NonfreeKernelModules: nvidia Architecture: amd64 CheckboxSubmission: c43a19076448baad41c3944df9d92f15 CheckboxSystem: 533a8038ef5a55601694b49142442fa7 Date: Mon Jun 13 19:16:41 2011 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) PackageArchitecture: all ProcEnviron: LANGUAGE=sv_SE:en PATH=(custom, user) LANG=sv_SE.utf8 SHELL=/bin/bash SourcePackage: soundconverter UpgradeStatus: Upgraded to natty on 2011-04-28 (46 days ago) ** Affects: soundconverter (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/796744 Title: Regression: Encoding Vorbis from FLAC source causes audible artefacts at regular intervals To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/soundconverter/+bug/796744/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
