I'm having a tough time with a proof of concept I was asked to do.
Part of the project is to selectively extract audio from video files
and burn the audio to a CD. I used the sample project
QTExtractAndConvertToAIFF to extract the audio portion out of a
QuickTime movie. Seems to work. I can play the AIFF in the QuickTime
Player and iTunes. So, I moved on to use the sample project AudioBurn
to burn the converted AIFF file to a CD.
AudioBurn won't allow me to select the output files from
QTExtractAndConvertToAIFF so I can't burn them. I took an mp3 file
and converted it to AIFF with iTunes. I can select that file and burn
it to an audio CD. When I open the files with QuickTime Player the
inspector window tells me that all the files are 16 bit, Big Endian
41.100 khz samples. What is different about the one from iTunes and
the others from QTExtractAndConvertToAIFF is:
iTunes export says it's "16-bit Integer (Big Endian), Stereo, 44.100
kHz" with a sampling rate of "1414.48 kbits/s"
QTExtractAndConvertToAIFF says it's "16-bit Integer (Big Endian),
Stereo (L R), 44.100 kHz" with a sampling rate of "1414.58 kbits/s"
The QTExtractAndConvertToAIFF files are also about 6kb bigger than
the iTunes export.
Notice the QTExtractAndConvertToAIFF ones say "Stereo (L R)" and the
sampling rate is slightly different.
Every combination of settings I try with QTExtractAndConvertToAIFF
using PCM gives me a file with the same info.
I can't find much written up on using the AudioConverter. Can anyone
tell me the right combination of settings to get an AIFF file
suitable for burning on to a CD ?
Thanks,
Matt
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