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Topic: iPod mini 2G stutters when playing LAME aps (Read 148993 times) previous topic - next topic
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iPod mini 2G stutters when playing LAME aps

Reply #100
Are samples still required. I reformatted my ipod mini today and noticed a track from Static-X's Start A War album skipped, i was riding my mtb at the time and it's a new album so i didn't know the track. I can listen through it again if anyone would like the sample?

Cheers,

Kristian

iPod mini 2G stutters when playing LAME aps

Reply #101
vbrfix fixed the samples for me when i put it on my ipod mini. cool

iPod mini 2G stutters when playing LAME aps

Reply #102
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vbrfix fixed the samples for me when i put it on my ipod mini. cool
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interesting... but it really doesn't seem to make sense... not that i'm doubting you... but it doesn't go along with the theory.

was your ipod unplugged from the computer when you played the sample? did you reset it?

iPod mini 2G stutters when playing LAME aps

Reply #103
Yes it was unplugged, and I turned off equalizer.

Not sure what you mean by resetting it, I didn't think that was neccessary

iPod mini 2G stutters when playing LAME aps

Reply #104
If VBR fix really does have an effect on some files, I still have to wonder if this issue somehow has anything to do with another glitch I found with iTunes and my 2G mini: songs having incorrect length values written in the tag. I had albums like Tommy where songs would cut off 20 seconds too soon, but would play fine in iTunes. When I went into the file properties, and ticked both the end-length button and "update," the problem went away. I suspect the VBR problems we're having are an issue with both the tags AND clock-speed optimization; if it were simply a clock-speed thing, using VBR fix to rewrite the header wouldn't have any effect. Likewise, if it were simply a clock speed thing, then wouldn't ALL 320kbps MP3 frames (even those encoded by iTunes, God forbid) skip and stutter? I wish Apple would address this.

Needless to say, I quickly re-encoded my lossless files to 192kbps AAC for use with the iPod. I realize that this isn't an option for some, though.

iPod mini 2G stutters when playing LAME aps

Reply #105
interesting argument. this hassle is done for me though. I'm transcoding everything I want to transfer to 128kbps AAC. not only to avoid VBR skipping, but so I can cram more on my iPod. and the sound difference isn't very noticable to my ears

iPod mini 2G stutters when playing LAME aps

Reply #106
Quote
interesting argument. this hassle is done for me though. I'm transcoding everything I want to transfer to 128kbps AAC. not only to avoid VBR skipping, but so I can cram more on my iPod. and the sound difference isn't very noticeable to my ears
[a href="index.php?act=findpost&pid=313494"][{POST_SNAPBACK}][/a]


I'd go with 160 if I were you; the difference between 192kbps and 160kbps is apt to be pretty small (if even perceivable on the majority of samples), but 128kbps starts to become noticeable, especially when transcoding. (I tried transcoding some old --aps and PsyTel --extreme tracks to 128kbps QT AAC to save some space on my iPod and almost immediately settled for the original tracks  ).

Edit: details.

iPod mini 2G stutters when playing LAME aps

Reply #107
Quote
Yes it was unplugged, and I turned off equalizer.

Not sure what you mean by resetting it, I didn't think that was neccessary
[a href="index.php?act=findpost&pid=313484"][{POST_SNAPBACK}][/a]


I'm skeptical when you say VBRfix fixed the problem files.

Do a reset to make sure (hold select + menu for a few seconds). Sometimes the 2G mini inexplicably gets stuck with clock speed optimization shut off. When that happens the problem files will play fine and the battery will drain about 3x faster than it should. I suspect this is what's happening to yours.

iPod mini 2G stutters when playing LAME aps

Reply #108
Quote
just tested my 6gb green and it skipped with both five years and nin.

but with acoustic eq, it didn't

oh well, i dont think i'll transcode -- how long does the battery last (roughly) with an eq cranked?
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I'm pretty sure you'll find out
--alt-presets are there for a reason! These other switches DO NOT work better than it, trust me on this.
LAME + Joint Stereo doesn't destroy 'Stereo'

iPod mini 2G stutters when playing LAME aps

Reply #109
honestly,

the vbrfix thing seemed to work for me on at least one file (Fiery Furnaces - Single Again).... but i tried it for another (The New Pornographers - The End of Medicine) and it did not work.

The rock eq setting didn't seem to work for me either... but i've tried the Acoustic eq setting and that one appears to do the trick, at least for the New Pornographers song.

(of course, i resetted the ipod and it was unplugged from the computer, both times.)

edit:
for me, getting rid of the stuttering is definitely a combination of having Sound Check On and Equalizer set to Acoustic.

iPod mini 2G stutters when playing LAME aps

Reply #110
I will try the equalizer on acoustic setting when I get home. Currently mine is on Rock (to avoid the skipping problem) and I haven't noticed any skips since on my everyday music.

I always have Sound Check on and the problem did occur when I had SoundCheck on and the EQ off.
iTunes 10 - Mac OS X 10.6
256kbps AAC VBR
iPhone 4 32GB

iPod mini 2G stutters when playing LAME aps

Reply #111
has anyone tried linux on 2G? i would, but i just got this puppy and i'm afraid of getting a very very small coaster that would only be good for dixie cups

iPod mini 2G stutters when playing LAME aps

Reply #112
my new ipod 60gb skips too, but not much. can't wait for a fix. this mp3 player is here to stay (being serious this time)

iPod mini 2G stutters when playing LAME aps

Reply #113
does anyone know what sound check actually does?

i'm guessing it's kind of a normalization option... since some mp3 files can be very loud and some very quiet.

iPod mini 2G stutters when playing LAME aps

Reply #114
Yup, its a normalization utility. You sound check all your files in iTunes, transfer it to Ipod, and turn it on (if you want normalization). It's good because if you get sick of same volume you can turn it off (unlike mp3 gain where you have to undo it then re-transfer).

Downside though is that it uses more battery ,and I've heard mp3gain works better to achieve normalization.

iPod mini 2G stutters when playing LAME aps

Reply #115
foo_pod converts replaygain info to soundcheck when uploading to the iPod

iPod mini 2G stutters when playing LAME aps

Reply #116
Just out of curiosity... has anyone experienced any stuttering w/ alt-preset extreme or alt-preset medium?

iPod mini 2G stutters when playing LAME aps

Reply #117
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Just out of curiosity... has anyone experienced any stuttering w/ alt-preset extreme or alt-preset medium?
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The specific settings you mention has not been tested. However the problem has only been seen when lame VBR is allowed to go to 320 kbps:

[a href="http://www.hydrogenaudio.org/forums/index.php?showtopic=33495&view=findpost&p=298019]Test lame settings[/url]

iPod mini 2G stutters when playing LAME aps

Reply #118
Quote
Quote
Just out of curiosity... has anyone experienced any stuttering w/ alt-preset extreme or alt-preset medium?
[{POST_SNAPBACK}][/a]

The specific settings you mention has not been tested. However the problem has only been seen when lame VBR is allowed to go to 320 kbps:

[a href="http://www.hydrogenaudio.org/forums/index.php?showtopic=33495&view=findpost&p=298019]Test lame settings[/url]
[a href="index.php?act=findpost&pid=315474"][{POST_SNAPBACK}][/a]


For what it's worth, I tried Nine Inch Nails - Right Where It Belongs:

lame 3.96.1
--alt-preset extreme: still stutters badly (not quite as bad as standard)
--alt-preset medium: no stutter

iPod mini 2G stutters when playing LAME aps

Reply #119
Scanning through this thread it seems like only a handful of songs are experiencing this issue. Has anyone had experience with a large number of APS songs experiencing this issue? If not, would a simple solution not be to encode these small number of songs with --preset CBR 256 instead of APS? Seems easier than changing the equalizer settings for all songs.

iPod mini 2G stutters when playing LAME aps

Reply #120
Quote
Scanning through this thread it seems like only a handful of songs are experiencing this issue.


Well, yes and no. We're only taking note of songs that show obvious stuttering. Many more APS songs have minor skips/stutters, not worth discussing.

Quote
Has anyone had experience with a large number of APS songs experiencing this issue? If not, would a simple solution not be to encode these small number of songs with --preset CBR 256 instead of APS? Seems easier than changing the equalizer settings for all songs.
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Re-ripping to CBR is one solution. For those who are unwilling/unable to re-rip the EQ is the way to go, though you have to watch out for distortion.

iPod mini 2G stutters when playing LAME aps

Reply #121
This is my first post on hydrogenaudio.org, but I've been following this topic with some interest.

I have an iPod Photo 60 GB and experience the stuttering problem as described. Granted the only track I have that is listed as experiencing the problem is the NIN "Right Where It Belongs".

Out of curiosity I tried the latest alpha version of lame (3.97a12; yes I know it isn't recommended but several people are reporting good results) with the settings -V2 --vbr-new; no noticeable stuttering. (Yes the iPod was disconnected). Has anyone else noticed this?

iPod mini 2G stutters when playing LAME aps

Reply #122
Apple today discontinued their iPod mini line.

It's very unlikely that they will ever fix the stuttering issue...

iPod mini 2G stutters when playing LAME aps

Reply #123
Good. Time to move on. Try the Nano, or just get something from another brand.

(How long do you figure it is before Creative Labs sues Apple for using the same name as one of their series?)

iPod mini 2G stutters when playing LAME aps

Reply #124
yea can someone let us know if nano has the skip issue? that's kind of a big deciding factor. also transfer speeds.

how am i going to toss my 60gb photo?