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Topic: [Need help please ] - Detecting wav's made from m4a (AAC) (Read 1503 times) previous topic - next topic
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[Need help please ] - Detecting wav's made from m4a (AAC)

Can someone please tell me is there any software which can show me real difference regarding freq. between m4a and .wav files? I've just tried 'spectral frequency' on Audition, but there is no freq. difference between those two on same file. One is m4a other is wav and freq is the same on graph. I'm trying to delete m4a files previously converted to wav. Any suggestions?

Re: [Need help please ] - Detecting wav's made from m4a (AAC)

Reply #1 –
There is a program that can detect of a .wav file seeesm to be form orignal CD or from a lossy compressed source. but the name elludes me at  the momment

i would like to say the name was CDauct or something along that line. but googling it gave me nothing.
Sven Bent - Denmark

Re: [Need help please ] - Detecting wav's made from m4a (AAC)

Reply #3 –
Many thanks @sven_Bent , I just tried. Unfortunately it says CDDA 100% for AAC (LC) m4a files :(

Re: [Need help please ] - Detecting wav's made from m4a (AAC)

Reply #4 –
Quote from: Motivo on
Many thanks @sven_Bent , I just tried. Unfortunately it says CDDA 100% for AAC (LC) m4a files :(

You won't find a reliable way to do this, although tools will sometimes catch transcoded files. 
 
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