Skip to main content ↑ ↓

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: Way to split AAC file without reencoding? (Read 6264 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Way to split AAC file without reencoding?

I have a 90 minute AAC file I'd like to split without reencoding and was wondering if it was possible in foobar2000. The only other way to do it I've been able to find is BeSplit, which is incredibly old and requires WinAmp for some reason. I'd rather avoid that because in foobar the chapters show up (it's actually a video from a concert) and I'd rather not have to manually find the start and end points of each song.

Way to split AAC file without reencoding?

Reply #1 –
mp3DirectCut, despite its name it can also cut AAC files.

Way to split AAC file without reencoding?

Reply #2 –
Quote from: duelle on
I'd rather avoid that because in foobar the chapters show up (it's actually a video from a concert) and I'd rather not have to manually find the start and end points of each song.

If I understand you correctly, it is contained in MP4/M4A container and has chapters which fb2k can show as sub-tracks,  and you want to split it according to chapters?
Then try https://github.com/nu774/m4acut/releases

It's a simple CLI tool, so you have to use it from command prompt.
However, it can automatically split input according to chapter points or cuesheet, preserving original tags, taking care of frame boundaries/padding, enabling perfect gapless playback.
You can manually split by specifying start/end point if you want.
All other tools I know don't support gapless playback of resulting files (that's why I wrote it).

Re: Way to split AAC file without reencoding?

Reply #3 –
can you please post a tutorial, I cannot find any tutorial how to use CMD command, please!
 

Re: Way to split AAC file without reencoding?

Reply #4 –
Quote from: squirtmph on
can you please post a tutorial, I cannot find any tutorial how to use CMD command, please!
First:
https://www.lifewire.com/command-prompt-2625840  (just one example of many)

Then, find the readme on the page here and experiment:
https://github.com/nu774/m4acut

BTW, thanks nu774 for a boss tool.  squirtmph, if your needs are less exacting you might take a look at LosslessCut:
https://github.com/mifi/lossless-cut


Re: Way to split AAC file without reencoding?

Reply #5 –
Thank you very much!


I lost password, its why it take me quite long, to response

Re: Way to split AAC file without reencoding?

Reply #6 –
As the thread has already been bumped, BeSplit is very good for .aac .mpa .mp3 .ac3 .dts formats when absolute accuracy isn't needed. Other tools don't process padding/reservoir for non-mp4 formats either. BeSplit doesn't depend on Winamp.

I can copy track durations in fractional seconds in Foobar ( %length_seconds_fp% ) with Text Tools, then give the list of times to BeSplit in "relative" mode, and with one invocation of the command-line it will split all of them on frame boundaries. Other tools may require absolute times, which can't be summed up with Foobar's titleformatting, and/or split only one segment at a time.