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Author Topic: IPOD Transfer SLOW  (Read 3221 times)

br1dge

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IPOD Transfer SLOW
« on: September 07, 2005, 08:51:32 am »

My transfer speeds are between .10 and .22 MB/s.. We are talking up to one minute per song.. Is this normal?  What do other people see?  I have tried both USB (2.0) and Firewire with non-discernable results..




Media Center Registered 11.0.309 -- C:\Program Files\J River\Media Center 11\

Microsoft Windows XP 5.1 Service Pack 2 (Build 2600)
Intel Pentium 4 3059 MHz MMX / Memory: Total - 1047 MB, Free - 481 MB

Internet Explorer: 6.0.2900.2180 / ComCtl32.dll: 5.82 (xpsp_sp2_rtm.040803-2158) / Shlwapi.dll: 6.00.2900.2713 (xpsp_sp2_gdr.050702-1513) / Shell32.dll: 6.00.2900.2620 (xpsp_sp2_gdr.050225-1820) / wnaspi32.dll: 4.71 (0002) , ASPI for Win32         DLL, Copyright © 1989-2002 Adaptec, Inc. / Aspi32.sys: 4.71 (0002)

Ripping /   Drive F: _NEC    DVD_RW ND-3500AG  Mode:Normal  Type:Auto  Speed:Max
  Drive H:   Mode:Normal  Type:Auto  Speed:Max
  Drive I:   Mode:Normal  Type:Auto  Speed:Max
  Drive J:   Mode:Normal  Type:Auto  Speed:Max
  Digital playback: Yes /  Use YADB: Yes /  Get cover art: Yes /  Calc replay gain: Yes /  Copy volume: 32767
  Eject after ripping: Yes /  Play sound after ripping: Yes  Soundfile:   chord.wav

Burning /  Drive F: _NEC     DVD_RW ND-3500AG   Addr: 0:0:0  Speed:48  MaxSpeed:48  BurnProof:Yes
  Test mode: No /  Eject after writing: Yes /  Direct decoding: Yes /  Write CD-Text: Yes
  Use playback settings: No /  Normalization: None
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SteveG

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Re: IPOD Transfer SLOW
« Reply #1 on: September 07, 2005, 04:34:30 pm »

That is not normal. What speed do you get if you drag and drop files to the iPod from Windows Explorer? I would expect it to be equally as slow which would point to a hardware issue. Be sure to delete any files you do this with for your testing from the iPod so they don't sit there taking up space.
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br1dge

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Re: IPOD Transfer SLOW
« Reply #2 on: September 07, 2005, 05:50:25 pm »

I was hoping you would say that.... I created a new folder on ipod drive in explorer. Copied 7 mp3's totaling 64MB - it took ~12 seconds. 

In playing with this after my post I noticed lame.exe using CPU resources - is this my "problem," the option I have enabled "Convert if necessary to mp3, quality VBR, Extreme? I now also see a "Use Fast Mode" box that has NOT been checked. I suspect there is some conversion going on that is slow, NOT the actual transferring as I had originally thought

Does this conversion option mean that if I have a 128k mp3 it tries to "upsample" it to something else (high or extreme?)  My intention is just to have files in mp3 format if and when i were to drag over a WMA, for example. I am not terribly particular of quality since the ipod plays through a crappy tape adapter in car.   

Thanks for your assistance SteveG - jeff
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JimH

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Re: IPOD Transfer SLOW
« Reply #3 on: September 07, 2005, 06:10:17 pm »

Try updating to build 314, available in a thread on this board.
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br1dge

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Re: IPOD Transfer SLOW
« Reply #4 on: September 08, 2005, 07:22:56 am »

Jim 314 didnt help (but I did have troubloe with the install paclage for the 1st time ever)  I noticed that some of my songs actually transferred very quickly - so I am convinced the conversion is what is taking so long.. Is this documented somehwere better than what is in the HELP section?
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JimH

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Re: IPOD Transfer SLOW
« Reply #5 on: September 08, 2005, 08:31:29 am »

I have enabled "Convert if necessary to mp3, quality VBR, Extreme?

Experiment with other settings.  Conversion times will vary widely and you may not be able to hear the difference on an iPod with headphones.
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Alex B

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Re: IPOD Transfer SLOW
« Reply #6 on: September 08, 2005, 10:18:58 am »

There is some sense in using a higher MP3 bitrate when transcoding from other lossy formats to MP3.

For example,  128 kbps WMA > decoding to wave > encoding to 128 kbps MP3  will result lower quality than the original 128 kbps WMA has. Every new encoding takes something off. It would be like the original was 80 kbps or something like that.

Using about 200 kbps (or more) would at least preserve the most of the original quality.

The best solution would be to re-rip the files directly in MP3 format in case the original CDs are available.


I now also see a "Use Fast Mode" box that has NOT been checked.

You should definately try the Fast option when using VBR. It is actually not any lower quality and it is faster.

You could also try CBR at about 192-256 kbps. CBR is a bit faster than VBR Fast.

I have sometimes used this custom setting for making fast CBR encodings:

-b 256 -q 7 --lowpass 17

(-b 256 is the bitrate. -q 7 is a faster quality setting. This lowers the quality a bit, but doesn't sound much different at a high bitrate. --lowpass 17 limits the high-frequency range to 17 kHz in case the original files have anything at that range. 17 kHz is good enough for a portable and the transcoded files will be higher quality at frequencies below 17 kHz.)
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Alex B

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Re: IPOD Transfer SLOW
« Reply #7 on: September 08, 2005, 10:29:26 am »

Convert if necessary to mp3, quality VBR, Extreme? ... Does this conversion option mean that if I have a 128k mp3 it tries to "upsample" it to something else (high or extreme?)

AFAIK this should not convert files if they are already in MP3 format.
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SteveG

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Re: IPOD Transfer SLOW
« Reply #8 on: September 09, 2005, 09:25:05 am »

br1dge,

Turn off all conversion and then the transfer speeds should be comparable. Please test and respond and then we can troubleshoot further from there.

Thanks,

Steve
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