Support and General Use > Audio Playback, Database and Playlists

Noise at the beginning of tracks

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mattp:
Hi, newbie to the forums here, I've been using rockbox for ages on my Video iPod 5G 30GB but I've recently had a problem with v3.0 and the daily build (today) where on certain albums only, there is a strange noise at the beginning of the track and the track length is displayed incorrectly, it shows as being longer. Only a few albums have this problem, most are fine. The problem albums play fine on my PC in WMP11.

Anyone had this problem before?

Cheers

Matt

Chronon:
It would be helpful to know some characteristics of the files.  What codec, bitrate, sampling frequency, etc.?  Are these common to the problematic files or not?

soap:
What codec are the problematic files?
What bitrate?
What sample rate?
What type of tags?
Do these exact files play properly in WMP11?  (as in  playing them off your iPod when it is plugged in while in disk mode.)

mattp:
All files are mp3 with different bitrate, some are 192, some 256 some 320kbps
not sure of the sample rate, what's a quick way to find out?
ID3v2.3

One of the files just came up on the rockboxed ipod as being 40kbps and mp2 using the UniCatcher theme which is wrong. The files play fine and the details show as correct when played in WMP11 in disk mode.

Cheers

spike66:
I had exactly the same "problem" with 3.0 and recent builds on some mp3 files, and found out that those files had junk data at the beginning, and the length header was wrong as well. So the problem was on the files, not Rockbox, although WMP and other players "overlooked" that problem, as previous Rockbox builds also did... it is as if the recent builds were "more picky" than earlier ones. I tried fixing the files but after (not much) trying and not succeeding, I decided to rip the tracks again. Now, at some point I thought maybe Rockbox should play the problematic files as well, but now I think it's actually a good thing that it "detects" corrupted tracks.

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