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jehmd
Newbie ![]() Joined: 11 February 2007 Location: United States Online Status: Offline Posts: 8 |
![]() ![]() ![]() Posted: 24 February 2007 at 7:31am |
I recently tried to play the first two FSI lessons from my mp3 player and it didn't work. The MP3 player was not able to open the file. I am using a Sansa made by SanDisk.
Is this a problem with incompatible mp3 formats or is it a problem in general with downloading to portable mp3 devices? The files play fine on my laptop. |
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Jo Ellen
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DemiPuppet
Administrator ![]() Joined: 27 May 2006 Location: United States Online Status: Offline Posts: 163 |
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There's a couple of possibilities. The player may not support the low 32Kbit/s data bit rate.
More likely it's the 22.05 KHz sampling rate. As far as I know, 32 KHz is the lowest "official" MP3-1 sampling rate. Try up-coding to a different rate. The audio will not change, but the file size will increase. Edited by DemiPuppet - 24 February 2007 at 9:25am |
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Chung
Contributor ![]() Joined: 23 May 2006 Online Status: Offline Posts: 143 |
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Which language was it for? The files that I loaded to a Sansa M250 from this site worked fine. Maybe I just got lucky and got languages whose files were coded at the acceptable sampling rate.
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gdfellows
Administrator ![]() Site Creator Joined: 04 March 2006 Location: United States Online Status: Offline Posts: 237 |
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To my knowledge, I've encoded all files at 32k. If there are some at 22k, let me know. I've not had any trouble with my iPod and Sandisk players.
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jehmd
Newbie ![]() Joined: 11 February 2007 Location: United States Online Status: Offline Posts: 8 |
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Edited by jehmd - 24 February 2007 at 2:20pm |
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Jo Ellen
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jehmd
Newbie ![]() Joined: 11 February 2007 Location: United States Online Status: Offline Posts: 8 |
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Thanks for the prompt reply. What kind of software do I need to use to change the rate? In other words, how do I do what you suggest?
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Jo Ellen
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jehmd
Newbie ![]() Joined: 11 February 2007 Location: United States Online Status: Offline Posts: 8 |
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The language was Hebrew. I don't know how to tell what the rate is on an mp3 file.
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Jo Ellen
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DemiPuppet
Administrator ![]() Joined: 27 May 2006 Location: United States Online Status: Offline Posts: 163 |
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Assuming you're on a Windows XP machine:
The Unit 1 Hebrew course has:
You could download the popular LAME command-line encoder to re-encode. ex: Change from 32kbps, 22kHz -> 48 kbps, 32kHz lame -b 48 --resample 32 infile.mp3 outfile.mp3 I'm not sure if LAME will retain the ID3 tags. You may need to get a tag editor and re-add them. You may want to try other encoders or LAME with a graphical front-end. I"m only familiar with command-line LAME. Edited by DemiPuppet - 24 February 2007 at 4:01pm |
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emptysilo
Newbie ![]() Joined: 31 October 2006 Online Status: Offline Posts: 30 |
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If you are using itunes, the process is easy. Just right click on the file and convert to MP3. It works on mp3 too. It will convert the mp3 file to the format specified in the in the advanced/importing options in preferences. Default is probably 128kb stereo and 64kb mono.
Most of these fsi course tapes are stereo but with identical left and right audios. In that case, I would recommend recording them under mono to make it more efficient. This is, because I think, 64kb mono is better than 64kb stereo. I could be wrong. Does any one know it for sure? |
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Chung
Contributor ![]() Joined: 23 May 2006 Online Status: Offline Posts: 143 |
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See Demipuppet's posts in this thread.
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