Faulty playback on Ipod Nano 4Gb 1st Gen

[Llorean]

Actually, it depends on what screen he got that, I'm pretty sure that aligns with one of our bootloader releases, and that one showed the SVN revision of the bootloader rather than a simple version number. So it could be his bootloader version.

[Febs]

I think you're right.  I wasn't reading carefully enough.

[Llorean]

If so, it's a ridiculously old bootloader and should be updated.

[fritzgutten]

HAHA, thank you for the help guys, installing the new bootloader has fixed things so far (2-3hrs of use and no errors), so relax its updated  
I even got a new theme that's much more legible while installed in my truck
you guys are all doing a great job, thanks

now back to tvg...how are things working out? are you just sticking with the older build?

fred

[tvg]

fritzgutten,
14180 is OK! Thanks, developers!

And NOW in "Debug\Audio thread" there are visible switchings from 30 mhz to 80 mhz and back.
 

P. S.: Though sometimes there are still track skips and glitches, very loud. May bу a part of the issue still remains...

P. P. S.: No, still doesn't work.

[maraz]

I'm having similar troubles again (as previously addressed in this thread). I was using a over-a-year-old build and bootloader, and when I upgraded to current, pretty much everything went haywire. It might work flawlessly through the day, it might play but skip (like a broken mpeg stream skips) a LOT or it might just crash with a data abort or some other message when starting playback.

Anyway, I tried the official iPod firmware today (and upgraded to 1.3.1 ), which worked fine, playback and all, so I'm kind of starting to think that this isn't a hardware problem for me. I reinstalled Rockbox (with current build), and presto, codec errors and crashing. Once I managed to get it playing with the 20070726 build recommended earlier, but when I switched to another font (the one I've always used, nedore-9, with iCatcher), it started crashing again, exactly the same way as previously - it loads the background image for the theme and immediately crashes.

I don't know what to say... help?

Edit: Interestingly, everything seems to be working right now. Running r13990.

Edit 2: Nope, still skipping.

[tvg]

maraz, r13990 does not skip, really. You shoud better 'reinstall' it: delete .rockbox folder and install again, also try to reformat the ipod. 13990 plays well, i think.

[Llorean]

Just because it works well for you is no guarantee it works well for everyone. All of the revisions work well for me, but clearly they don't for most of you.

Suggesting someone reformat their iPod is almost always pointless, there should be very few (if any, ever) occasions where this is necessary.

[ji_2345]

hey guys...first time poster and at the risk of sounding like a complete noob I am having the same problems with this rockbox thing. I keep getting massive audio glitches from playback of mp3 files, and wma files either won't play, or will play for 20seconds then skip track and keep skipping tracks until i turn the thing off. I also get a lot of data abort errors and something about an instruction error? sorry but I dont know much about this stuff. The database is always recommitting itself and leaving out tracks and stuff. The funny thing is everything else works fine. Doom works fine and so do the demos and stuff...its just the playback that seems to be not working. I used the current build with the latest ipodpatcher...I dunno what the bootloader is so I just assume I have the latest one...I have changed back to my ipod software atm but I really digged the advance features of the rockbox like the eq and stuff...I want to get it working

[webjockey]

I would like to say that it also happens to me (I also have a 4GB iPod Nano 1st Gen about a year old)
Sinc I have no FLAC files, I cannot test them, but, the mp3s, the more compressed they are, the worse the playback, I am currently listening to a 192mp3 and it is doing pretty well, the glitches are very few, there is no skipping, and the time doesn't flux.
But, previously, I was playing a 249mp3 and the time was becoming faster and slower, there were frequent glitches etc. etc. No skipping though and I didn't get a data error (although, it is worth noting that I did infact geta data error for the very same song on a daily build, all the other songs work well) That was when I switched to the current build. All the songs start well, and sometimes, they play flawlessly, even the aforementioned 249mp3 (just to note its Animals - Nickelback, not that its necessary to know   ) plays well. I just wanted to add my two cents, and it seems to me its the compression that is doing this. please comment, I really like Rockbox and don't really want to switch back  

[GodEater]

Just for the record, a 249kbps MP3 is *less* compressed, than a 192kbps one.

[webjockey]

he, he.... OK then.....
forgive my ignorance...
But I really do fail to see how more compressed runs better than less compressed, well, whatever...  

[bluebrother]

But I really do fail to see how more compressed runs better than less compressed, well, whatever...  

less data - less data to read from the disk - less data to process

[webjockey]

ah, i see...
hmmm, I just thought the more compressed it is, the more there is to uncompress, so the more difficult it would be for Rockbox...

and jsut to note, my music was playing absolutely fine, and then, I opened up Rockdoom while playing some music, and it gave me a data abort...
I thought, fine, don't play music and run rockdoom, so I go back to my songs, and now every single songs returns a data abort (each with a different hex number) I even tried to delete all the rockbox files and reinstall them, but nothings working....

[Chronon]

I just bought a 2GB nano from eBay and it seems to suffer from a similar problem.  MP3s seem to play fine.  But MP4 (aac) files play for a couple of seconds then playback skips to the next track or even skips several tracks.  I've tried re-booting and clearing settings.  But this certainly sounds like similar behavior to what the OP reported with FLAC.

I just installed from scratch using the rbutil, which should be using the most up-to-date bootloader.  

I'm running r14396M 070821 (I compiled it myself today, but the source was a couple of days old.  I will update my sources and try again.)  *compiling now*

*update* I'm now testing with r14416M 070821 -- though judging by the changes to the source I don't think I'll see any difference.

** I am indeed getting the same behavior.  Higher bitrate definitely seems to aggravate the problem.  I have some 128kbps AACs that I tried and it seems to skip on the first track starting at about the 1:36.  Each subsequent track plays for for a random time between 1 and 10 seconds before skipping to the next track.

In contrast I have a 256kbps AAC album.  It plays the first track up until 0:23.  Then it randomly skips some tracks, playing a random set of the remaining tracks for 1 or 2 seconds each, but ended up playing about 0:10 of the 9th track for some reason.

So, it seems to definitely perform the best right when playback has been initiated.

I'll play with it further.