Version: (using KDE KDE 3.2.1) Installed from: Compiled From Sources Compiler: gcc (GCC) 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk) OS: Linux when mp3 file contains a lot of data in id3 tags like a picture, this cause some noises when the player start reading the file. I think (i don't look at the code) the file is read as is(perhaps by a QDataStream) and no difference between audio data and tags data is made, so arts received those datas and play them. This problem don't appear with XMMS and other apps whose don't use the kfile plugins.
Thats a bug in mpeglib_artsplug then...
More comment... You wont hear the noise unless you have the previews activated. The audio-preview uses aRts to play the file. The aRts-part responsible for MP3-playback is mpeglib_artsplug. If this is wrong, please correct me... Could you provide a mp3 where such noise happens? Does it happen in noatun/juk/kaboodle too? Arnold
Actually it's probably just that the tag contains a "false synch" -- i.e. 11 bits of ones that the decoder thinks is an MPEG frame header. ID3v2 tags are supposed to use what's called an "unsynchronization scheme", but often they don't implement this. So it's probably an issue of the tagging software not trying especially hard to avoid creating false synchs and mpeglib not trying especially hard to avoid false synchs...
Ok, i've search and found the most little mp3 with this problem. This also happens with noatun/juk and kaboodle but as i said in my bug report, this doesn't happen with xmms. Cyril Le mardi 30 Mars 2004 15:53, Arnold Krille a écrit : ------- You are receiving this mail because: ------- > You reported the bug, or are watching the reporter. > > http://bugs.kde.org/show_bug.cgi?id=78746 > > > > > ------- Additional Comments From arnold arnoldarts de 2004-03-30 17:53 > ------- More comment... > > You wont hear the noise unless you have the previews activated. The > audio-preview uses aRts to play the file. The aRts-part responsible for > MP3-playback is mpeglib_artsplug. > > If this is wrong, please correct me... > > Could you provide a mp3 where such noise happens? Does it happen in > noatun/juk/kaboodle too? > > Arnold Created an attachment (id=5468) Monica Mancini - Senza Fine.mp3
There's no difference between programs used to set the tags, even mine (ktag) and i think i've respected the id3v2 api recommendations. And as i said, there is no problem with XMMS and Amarok (i try it recently with all my problematics mp3s). Cyril. Le mardi 30 Mars 2004 16:02, Scott Wheeler a écrit : > ------- You are receiving this mail because: ------- > You reported the bug, or are watching the reporter. > > http://bugs.kde.org/show_bug.cgi?id=78746 > wheeler kde org changed: > > What |Removed |Added > --------------------------------------------------------------------------- >- CC| |wheeler kde org > Summary|kfile mp3 plugin read id3 |tag data being read as > audio > > |tags as audio data and so |data and so create noises > |create noises | > > ------- Additional Comments From wheeler kde org 2004-03-30 18:02 ------- > Actually it's probably just that the tag contains a "false synch" -- i.e. > 11 bits of ones that the decoder thinks is an MPEG frame header. ID3v2 > tags are supposed to use what's called an "unsynchronization scheme", but > often they don't implement this. > > So it's probably an issue of the tagging software not trying especially > hard to avoid creating false synchs and mpeglib not trying especially hard > to avoid false synchs...
JuK, Kaboodle and amaroK all use the same code for playing the stuff so you should see the same in all three... I'm not sure what you're referring to as "the ID3v2 API" -- there is no "ID3v2 API" but rather an ID3v2 standard. I was referring specifically to the standard for ID3v2.4, section 6.1: http://www.id3.org/id3v2.4.0-structure.txt
i'm agree with you, it's strange but i don't have the problem with amarok. :| Le mardi 30 Mars 2004 18:51, Scott Wheeler a écrit : > ------- You are receiving this mail because: ------- > You reported the bug, or are watching the reporter. > > http://bugs.kde.org/show_bug.cgi?id=78746 > > > > > ------- Additional Comments From wheeler kde org 2004-03-30 20:51 ------- > JuK, Kaboodle and amaroK all use the same code for playing the stuff so you > should see the same in all three... > > I'm not sure what you're referring to as "the ID3v2 API" -- there is no > "ID3v2 API" but rather an ID3v2 standard. I was referring specifically to > the standard for ID3v2.4, section 6.1: > > http://www.id3.org/id3v2.4.0-structure.txt
I have one song that has this problem. I've clipped it to the first 32K that has that problem, and I'll attach it here. It doesn't have this problem in mpg123, my car's MP3 player, or my DVD player. It only does it in JuK, Kaboodle, and Noatun. I will try removing the tags from it to see if that helps, I never tried that before.
Created attachment 5470 [details] Sample MP3 file that has a sharp noise at the beginning with aRts. This is a 1 second clip that demonstrates the problem I have with aRts. This is the only song I have with this problem.
Using JuK to change the tag (even to the same thing) caused it to play correctly. So I'm not sure if the song is malformed, or if there is a problem with aRts.
On Wednesday 31 March 2004 3:34, Michael Pyne wrote: > Using JuK to change the tag (even to the same thing) caused it to play > correctly.
The noice only happens with mpeglib_artsplugin. It might be that the song is also malformed, but akodelib plays it just fine.
And it is a duplicate *** This bug has been marked as a duplicate of 67800 ***