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Splitting flac album with cue file without transcoding.
Apostulate
post Feb 23 2010, 16:00
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Okay, I recently received a flac album (one file) that has a cue file along with it. I wanted to know if any of the Mac rippers/encoders available are capable of splitting this file without transcoding it to another format or even within the same format. I tried using XLD by just going to the file menu, selecting open, selecting the cue file and then selecting "decode". This process was pretty lengthy, so I'm guessing that XLD was splitting and then transcoding the files to the FLAC options that I had set in the preferences of the program. Now, this post, Using the Open Raw PCM (bin+cue) , over on Macrumors.com mentions using the "Open Raw PCM (bin+cue)" option under the file menu within XLD, but I'm guessing using that method will also result in transcoding.

Does anyone know of how to accomplish the splitting of a single, flac file album using cue sheet without transcoding?

Thanks beforehand.
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Gregory S. Chudo...
post Feb 23 2010, 16:17
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That's not possible. Track boundaries won't match FLAC frame boundaries, so the first frame of the second track will have to be shorter than the rest, and FLAC subset doesn't allow variable frame sizes.


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db1989
post Feb 23 2010, 18:11
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Can I ask why? I assume you know that no quality is lost in conversions between lossless and uncompressed WAV/AIFF/PCM.
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Apostulate
post Feb 24 2010, 16:01
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QUOTE (dv1989 @ Feb 23 2010, 12:11) *
Can I ask why? I assume you know that no quality is lost in conversions between lossless and uncompressed WAV/AIFF/PCM.


Yeah, I do know that, but I'm not trying to convert to AIFF or WAV. I'm mainly just trying to keep the files as FLAC (at the same level of compression as the original file) but not have them converted from FLAC to FLAC (with either less or more compression than the original file, based on my FLAC settings within XLD or whichever program I'm using) when I really just want the file split, for example, as Cue Splitter is able to do with mp3 files.

This post has been edited by Apostulate: Feb 24 2010, 16:03
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Apostulate
post Feb 24 2010, 16:10
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QUOTE (Gregory S. Chudov @ Feb 23 2010, 10:17) *
That's not possible. Track boundaries won't match FLAC frame boundaries, so the first frame of the second track will have to be shorter than the rest, and FLAC subset doesn't allow variable frame sizes.


So, FLAC tracks are divided into frames of equal length based on the track's length? So, transcoding is a must with FLAC image files with cuesheets? Does any other lossless format allow the splitting of an image file without transcoding?

Thanks for the information.
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Gregory S. Chudo...
post Feb 24 2010, 16:26
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In FLAC, as in most lossless codecs, only the last frame is allowed to be shorter than the rest. All other frames usually have default size of 4096 or 4608 samples.

Why does transcoding bother you? Lossless transcoding is not exactly a transcoding, because every bit of information is preserved. And with FLAC it can be very fast, even faster than splitting a WAV, because there'll be less work for HDD.


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Apostulate
post Feb 24 2010, 16:56
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QUOTE (Gregory S. Chudov @ Feb 24 2010, 10:26) *
In FLAC, as in most lossless codecs, only the last frame is allowed to be shorter than the rest. All other frames usually have default size of 4096 or 4608 samples.

Why does transcoding bother you? Lossless transcoding is not exactly a transcoding, because every bit of information is preserved. And with FLAC it can be very fast, even faster than splitting a WAV, because there'll be less work for HDD.


Well, I guess it's just the time spent transcoding that bothers me. I figured that, if I could bypass the transcoding, then the splitting of the file would definitely be less than one minute, which is better than the 5-10 minutes it takes now including transcoding.

Once again, thanks for the insight. Didn't know any of the information about lossless codecs that you have presented.
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