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Mp3 Editing
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Mac Elite
Join Date: Dec 2001
Location: Chicago
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I want to take an mp3, crop it, then save it as a different bit rate. What program(s) will achieve this?
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Mac Enthusiast
Join Date: Jul 2002
Location: Leiden, Netherlands
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Originally posted by Hi I'm Ben:
I want to take an mp3, crop it, then save it as a different bit rate. What program(s) will achieve this?
I don't think you can directly crop an mp3, you'll need to change it's format first. You'll need to change it to a non compressed format like wav,AIFF, then crop it with any sound editor (none comes to mind, last time I did this I was running system 7.0). Then you'll need to reencode (and will have the ability to change the bitrate) the file to mp3.
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Professional Poster
Join Date: Jul 2001
Location: New York, NY
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I believe you can do this with Quicktime Pro: cropping via cut and paste into a new document, then using "save as" to change the bit-rate (though I'm not sure the second part will work)
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cpac
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Mac Elite
Join Date: Mar 2001
Location: CO
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I got the free "Audacity" (?from versiontracker?), and was amazed at what editing it let you do. I forget about bit rates, but I think it offers several alternatives.
It occasionally quits on me, but is awesome for freeware!
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TOMBSTONE: "He's trashed his last preferences"
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Grizzled Veteran
Join Date: Dec 2000
Location: Finland
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Editing in Quicktime and saving will only result in a Quicktime file (unless you snip away the QT header).
What he's asking for is lossy editing (since he wants to change the bitrate). There *are* ways to edit an MP3 without re-compressing, but that's not relevant here.
There is a LAME MP3 encoder for Quicktime, so you could edit in Quicktime and re-compress. (You can also first edit the file, then export to AIFF, then re-compress to MP3 using LAMEBrain.)
You can also edit the the file with Audacity. Audacity can also export to MP3 if you download an extra component.
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Addicted to MacNN
Join Date: Nov 2002
Location: Seattle, WA
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iTunes has got to be the easiest and cheapest way to do this. Just set your in/out points on the song in get-info and then change your encoder settings and "convert to mp3"
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Professional Poster
Join Date: Jul 2001
Location: New York, NY
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Originally posted by Jacke:
Editing in Quicktime and saving will only result in a Quicktime file
but you can "Save as" or "export" to non-QT formats like aac, and mp3 - no?
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cpac
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Addicted to MacNN
Join Date: Nov 2002
Location: Seattle, WA
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Originally posted by cpac:
but you can "Save as" or "export" to non-QT formats like aac, and mp3 - no?
"Save As" is mov-only. Export = re-encode (except for DivX 5.03-5.06 and mp4, which support pass-through in their own way). QT doesn't come with an exporter for mp3 or raw aac, but as Jacke linked to there is a 3rd party implementation of a LAME mp3 export component. But since iTunes has a QT compatibility layer you can't really fault Apple for not providing the option
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