Rockbox.org home
Downloads
Release release
Dev builds dev builds
Extras extras
themes themes
Documentation
Manual manual
Wiki wiki
Device Status device status
Support
Forums forums
Mailing lists mailing lists
IRC IRC
Development
Bugs bugs
Patches patches
Dev Guide dev guide
Search



Donate

Rockbox Technical Forums


Login with username, password and session length
Home Help Search Staff List Login Register
News:

Welcome to the Rockbox Technical Forums!

+  Rockbox Technical Forums
|-+  Support and General Use
| |-+  Audio Playback, Database and Playlists
| | |-+  iPod nano strange sound glitch problem
« previous next »
  • Print
Pages: [1]

Author Topic: iPod nano strange sound glitch problem  (Read 3004 times)

Offline villadelfia

  • Member
  • *
  • Posts: 4
iPod nano strange sound glitch problem
« on: November 28, 2007, 07:43:40 PM »
When I use my iPod for prolonged periods, after a while I start hearing occasional mp3/ogg/whatever is playing decoding errors (you know how they sound, like an mp3 stream error). If I then continue listening they gradually get worse until the point of constant glitching and skipping of a quarter of a second of sound.

If I reboot my iPod, it will immediately return EXCEPT when I wait about 2 hours before turning it on again.

I have a suspicion that it is a hardware failure in my iPod because it happens much faster if I hold my iPod in my hand than when it is in my pocket (as a matter of fact, it hasn't happened yet when it is in my pocket)

I am using the most current build (r15844) but it happens with every build.
Logged

Offline soap

  • Member
  • *
  • Posts: 1678
  • Creature of habit.
Re: iPod nano strange sound glitch problem
« Reply #1 on: November 28, 2007, 08:54:56 PM »
Hmm, that sounds exactly like how my Nano glitched before the recent ATA timing fixes.
What pocket are you referring to?  Tight pants pocket or jacket pocket?  I guess what I'm trying to get at is whether your pocket is warm or cool.
Logged
Rockbox Forum Guidelines
The Rockbox Manual
How to Ask Questions the Smart Way

Offline villadelfia

  • Member
  • *
  • Posts: 4
Re: iPod nano strange sound glitch problem
« Reply #2 on: November 29, 2007, 01:11:03 AM »
Cool jacket pockets. And what timing fix?
Logged

Offline soap

  • Member
  • *
  • Posts: 1678
  • Creature of habit.
Re: iPod nano strange sound glitch problem
« Reply #3 on: November 29, 2007, 12:46:29 PM »
I'm assuming your problem, like the one I had, is heat related.  Heat your Nano and it will glitch, keep it cool and it won't.

On your question:
The proper ATA timing is unknown, and Rockbox recently changed it to match IpodLinux.  This fixed most all problems people were experiencing with their Nanos, but why is unknown.
Logged
Rockbox Forum Guidelines
The Rockbox Manual
How to Ask Questions the Smart Way

Offline Llorean

  • Member
  • *
  • Posts: 12931
Re: iPod nano strange sound glitch problem
« Reply #4 on: November 29, 2007, 01:11:33 PM »
We didn't actually change something specific in the ATA timing, really. We enabled a bit that iPodLinux had described as "The >65mhz bit" which they had deemed necessary for accessing the flash at higher speed. Mind you, 75 mhz is also greater than 65, and we're not wholly sure what that bit does due to the complete lack of documentation, but evidence suggests that it's a working part of the solution, at least.
Logged

Offline lloydom

  • Member
  • *
  • Posts: 1
Re: iPod nano strange sound glitch problem
« Reply #5 on: November 30, 2007, 04:19:32 PM »
I have been seeing the same problem. If it is placed on a wooden surface or in the pocket it will play better without any breaks, but in the hand or on a carpet surface will break after 30 minutes or so.
Funny when i had the original firmware there was no problem. Could it be a cross feed issue?
Some help here will be appreciated.
Logged

  • Print
Pages: [1]
« previous next »
+  Rockbox Technical Forums
|-+  Support and General Use
| |-+  Audio Playback, Database and Playlists
| | |-+  iPod nano strange sound glitch problem
 

  • SMF 2.0.17 | SMF © 2019, Simple Machines
  • Rockbox Privacy Policy
  • XHTML
  • RSS
  • WAP2

Page created in 0.082 seconds with 15 queries.