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Topic: Glitch at the beginning of the track (Read 3115 times) previous topic - next topic
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Glitch at the beginning of the track

I came across an album in MP3, where there's a glitch at the beginning of every track (either if I let them play in the playlist or if I let just one track play on repeat).

This is what it says in the properties of the tracks:
SR: 44100
Channels: 2
Bitrate: 320 kbps
Codec profile: MP3 CBR
Tool: LAME 3.93
Tag: id3v2|id3v1
ENC_DELAY: 576
ENC_PADDING: 1318 (varies from track to track)
MP3_ACCURATE_LENGTH: yes
MP3_STEREO_MODE: stereo

Tried playing in VLC and on my phone and didn't have any such glitches. Also opened them in an audio editor (Wavosaur) and didn't see anything unusual. After saving as WAV from there it played fine.

Tried increasing buffer to 2100 in Foobar and didn't help.

I converted a MP3 to FLAC (with Foobar) and the glitch was still there in Foobar.

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Foobar 1.0.3 and Win7 64. CT4760 with KX drivers.

Glitch at the beginning of the track

Reply #1
bump

I'd post a mp3, but I'm not sure it's allowed.


Also, what I thought was happening at the beginning of a track is actually happening at the end. It was hard to tell when played back sequentially, but now I noticed that it happens even if I don't play on repeat.

Glitch at the beginning of the track

Reply #2
Checking the files in question with the File Integrity Verifier component may help. Also see whether foobar's console provides any hint.
This is HA. Not the Jerry Springer Show.

Glitch at the beginning of the track

Reply #3
Checking the files in question with the File Integrity Verifier component may help. Also see whether foobar's console provides any hint.

Checked both and didn't see any errors.


edit: the glitch also happens in XBMC.

Glitch at the beginning of the track

Reply #4
Upload a sample file here.

Glitch at the beginning of the track

Reply #5
Done.

Glitch at the beginning of the track

Reply #6
The glitch is in the file and every decoder I tried shows it. Windows Media Player, QuickTime, Wavosaur, Audacity and LAME --decode. Sorry.

Glitch at the beginning of the track

Reply #7
If you zoom right in on the end of the track in an editor you can see there is a large offset peak at 2:25.900.

You could trim the end of the files using mp3DirectCut - does anyone know of any issues with mp3s produced with this tool?

Glitch at the beginning of the track

Reply #8
The glitch is in the file and every decoder I tried shows it. Windows Media Player, QuickTime, Wavosaur, Audacity and LAME --decode. Sorry.



If you zoom right in on the end of the track in an editor you can see there is a large offset peak at 2:25.900.

You could trim the end of the files using mp3DirectCut - does anyone know of any issues with mp3s produced with this tool?


Right, I see it now. Thing is, I had an older version of Wavosaur (1.0.3.0) and it didn't show the glitch, the file actually ended at 2:25:226. The newest VLC (1.1.2, 7zip version) still doesn't show it. I guess they have older/different decoders or something..

 
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