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Topic: Is there a way to check if a FLAC file came from mp3 (Read 4082 times) previous topic - next topic
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Is there a way to check if a FLAC file came from mp3

Hi,

Is there any way to check if a FLAC file was created by converting an mp3 or other lossy format to FLAC?

Thank you.

Is there a way to check if a FLAC file came from mp3

Reply #1 –
Quote from: danny.d on
Hi,

Is there any way to check if a FLAC file was created by converting an mp3 or other lossy format to FLAC?

Thank you.


One way that will work for sure is to use a frequency analyzer to see if it drops off early in the frequency domain. Most codecs will do a lowpass filtering on the audio which can be seen as a big drop at some point on the frequency scale. It can be at 16 kHz for example.

Is there a way to check if a FLAC file came from mp3

Reply #2 –
AuCDtect

(You'll have to decode the FLAC file to WAV to run the test.)

Is there a way to check if a FLAC file came from mp3

Reply #3 –
Remember that the above methods are not 100% reliable, i.e. some original mastering may be misidentified as coming from MP3's.

Is there a way to check if a FLAC file came from mp3

Reply #4 –
Nice frontend for     AuCDtect-will accept compressed files as input;
flac
ape
shn
few more too,offcourse will take wave as well 
http://www.dester.hu/English/main_e.html

Is there a way to check if a FLAC file came from mp3

Reply #6 –
Thanks everyone, that helped!
 

Is there a way to check if a FLAC file came from mp3

Reply #7 –
Quote from: pepoluan on
Remember that the above methods are not 100% reliable, i.e. some original mastering may be misidentified as coming from MP3's.

And vice versa!