Any mp3 tool for track location in image file?
Reply #10 – 2012-12-09 17:42:25
If you want to play on a phone a DAP or in a car, I guess you can use mp3directcut to split the AAC at the CUE points. If it doesn't need to be gapless that's probably OK. You could then wrap the AAC up in an MP4 and probably name it .m4a for compatibility. Just to close the loop on this, mp3directcut didn't work for me. The AAC audio stripped from the video was rejected as incompatible by mp3directcut so I renamed it .aac but this just wedged mp3directcut at 100% CPU for 15-20 minutes before I killed it. In my limited experience, streamed videos with music may well use HE-AAC, rather than LC-AAC. Foobar2000 will probably confirm which encoding mode is used. It might be that mp3DirectCut only supports LC - I have absolutely no idea. It might also be possible to rebuild the stream in foobar2000 - I can't recall what the right-click Utils menu contains for AAC, but rebuilding the stream might be helpful.So this worked and was pretty simple though not what I had hoped for as Audacity did go through a decode and reencode of the source and I ended up with the split track files rather than my preference of maintaining a single file with subsong indexing. The result still sounds decent though and I'm pleased to finally get to hear this album again. However, the moment it comes out on CD I'll be purchasing it to add to my flac library to replace this. Knowing the locations of the cut points (which you can read off the bottom of Audacity, and set the mode to minutes:seconds:frames) you can also create your own CUE sheet in a text editor (get one, copy and rename it, then edit it in Notepad), and simply use that in foobar2000 to play the CUE (which would reference the AAC, but use type WAVE) or Convert with breaks at frame boundaries. If you need to decode-encode, you could consider lossless (big files) which is no worse quality than the decodes AAC. You could also consider near-lossless such as lossyWAV encoded with FLAC (from about 310-450 kbps in extraportable to standard settings) which won't introduce some of the transcoding problems that you might worry about with a second transform codec. But yeah, don't sweat it too much. You'll at least enjoy the music until it's released on CD.