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| | |-+  Distortion/Scratchy Treble Ipod 4G
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Author Topic: Distortion/Scratchy Treble Ipod 4G  (Read 1252 times)

Offline oddsratio

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Distortion/Scratchy Treble Ipod 4G
« on: November 15, 2011, 02:00:03 AM »
Hi and thanks for resources on this forum. Reading through your replies has gotten me over some initial bumps on loading rockbox onto my player.

Unfortunately some of the tracks that I've loaded are suffering from scratchy playback and distortion, particularly on female vocals, sounding pretty horrible. I've compared the files on the original firmware and on my hard drive and this distortion isn't present. What information would I be able to provide to track down the source of the problem? All sound settings right now are stock, no eq or any other effects, and I've reinstalled the firmware twice and reloaded the tracks.

From what I read, it might be an encoding issue, and  I'll submit it to the bugtracker once I figure out protocol, but I'm hoping to fix it. In the meantime I will be switching back to ipod's firmware, which, while it sounds better for now, leaves a lot to be desired after trying out rockbox.

Tracks tested are both mp3 V0 and Flac, so it's not an issue of quality or the phones.

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Offline saratoga

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #1 on: November 15, 2011, 03:13:09 AM »
Copy and past the contents of the config file in your .rockbox folder.
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Offline oddsratio

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #2 on: November 15, 2011, 04:39:14 AM »
this is the only thing in the document when I open it in my text editor:

# .cfg file created by rockbox 3.9.1 - http://www.rockbox.org

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Offline Chronon

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #3 on: November 15, 2011, 10:57:05 AM »
Try reinstalling Rockbox.
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Sansa e280, Gigabeat F40, Gigabeat S60, Sansa Clip+, iPod Mini 2g

Offline oddsratio

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #4 on: November 15, 2011, 11:45:50 AM »
Quote from: Chronon on November 15, 2011, 10:57:05 AM
Try reinstalling Rockbox.

Tried that a couple times. Reinstalled & the config file now reads:

# .cfg file created by rockbox 3.9.1 - http://www.rockbox.org

volume: -52
car adapter mode: on

This distortion only affects a certain number of tracks, which isn't fixed by resyncing.
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Offline saratoga

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #5 on: November 15, 2011, 01:07:55 PM »
Post a link to one of them.
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Offline oddsratio

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Re: Distortion/Scratchy Treble Ipod 4G
« Reply #6 on: November 15, 2011, 09:26:37 PM »
I can hear some subtle distortion (in itunes, not in songbird) at :30, but rockbox amps it up.

Nevermind, thanks for your help. I partitioned & formatted the ipod and reinstalled rockbox. Got it to work fine.
« Last Edit: November 16, 2011, 01:33:36 PM by oddsratio »
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