Most of the time it's pretty easy to tell if an audio sample has originated from a lossy/mp3 source, just by looking at a the frequency spectrum. Lossy file compression like mp3 usually employs lowpass filtering at a frequency well below that of true CD audio. And the effect of such lowpass filtering remains apparent even after it has been transcoded. See: http://www.audiohub.org/get/fa/fa.htm + http://www.audiohub.org/get/fa/sa.htm .
There is only one program that I know of that can make a reasonably educated guess at whether music has been transcoded from a lossy source like mp3. Tau_Analyzer. But if I recall correctly, you probably can't scan FLAC files directly with it.
Because it only reads from a CD, therefore you have to either burn them to an actual disc, or mount them as a virtual drive.Kristian//edit refering to Tau Analyzer of course
auCDtect works directly on wav files.
Hi there,Does anyone know of a program that can verify the integrity of a flac? How can I tell if it is a real FLAC or an mp3 file that has been converted into a FLAC?Is there a program out there that will do this?Thanks
Why is the x-axis scale reversed?