A series of MP4 video files that I download report the following audio specs in GSpot 2.70a:
mp4a: MPEG-4 AAC LC
32000Hz 96 kb/s tot (2/0)
Presently I use AOA Audio Extractor to extract the audio as a wave file. The resulting wave file is about the same size as the video file. Is there a way to extract the audio portion without converting it to a new format, such as wave? That is, the file that is extracted is the AAC file that is exactly the file that is multiplexed in the MP4 file? The file should be exactly the same quality as the original while being smaller than the wave file.
While I know a lot about audio, I'm not current on AAC (what's LC?) or even MPEG-4. The two objectives of this request are to hopefully demultiplex the audio portion of the file with no recoding.
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mp4muxer/mp4creator worked fine on my office computer, but it crashes when I try to run it on my almost identical home computer. Downloading the zip file again did not help. How can I troubleshoot?
The good news is that Easy CD-DA Creator, which I have, handles AAC files!
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