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Help. How to evaluate a Mp3's quality? Like noise existed in the f
MaiTiano
post Apr 16 2012, 12:00
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As mentioned in the title.

Now I am evolving into a project. In this project, we have a 128kbps mp3 library and we need to find which files have the inferior quality, such as noise existed, volume is too small etc.

Any advice? It would be better if someone know some open-source project which already has the ability to detect the mp3 files with bad quality.

many thanks.
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Dynamic
post Apr 25 2012, 20:44
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[1] - Yes, I think it's the whole song
[2] - It should be black, except perhaps for the very lowest frequencies, but probably for those also. You can show spectrogram view in Audacity - that should be black during the gaps too.


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Dynamic – the artist formerly known as DickD
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Posts in this topic
- MaiTiano   Help. How to evaluate a Mp3's quality? Like noise existed in the f   Apr 16 2012, 12:00
- - halb27   Sounds like you don't have a reference to the ...   Apr 16 2012, 12:10
|- - MaiTiano   QUOTE (halb27 @ Apr 16 2012, 12:10) Sound...   Apr 17 2012, 02:35
|- - saratoga   Determining which will sound better to a person is...   Apr 17 2012, 02:53
|- - .alexander.   Robot will never replace man © Ogre   Apr 17 2012, 06:36
|- - Nessuno   QUOTE (saratoga @ Apr 17 2012, 03:53) Det...   Apr 17 2012, 07:42
|- - MaiTiano   Yes，I do think that there is a evaluation r...   Apr 17 2012, 08:44
||- - Nessuno   QUOTE (MaiTiano @ Apr 17 2012, 09:44) Yes...   Apr 17 2012, 09:11
||- - MaiTiano   For the simplicity, for the 1st step, at least I w...   Apr 17 2012, 10:01
||- - knutinh   QUOTE (MaiTiano @ Apr 17 2012, 11:01) For...   Apr 18 2012, 11:59
|- - pdq   QUOTE (Nessuno @ Apr 17 2012, 02:42) QUOT...   Apr 17 2012, 13:38
|- - Nessuno   QUOTE (pdq @ Apr 17 2012, 14:38) QUOTE (N...   Apr 17 2012, 17:38
|- - saratoga   QUOTE (Nessuno @ Apr 17 2012, 12:38) And ...   Apr 17 2012, 17:53
- - Nessuno   QUOTE (MaiTiano @ Apr 16 2012, 13:00) Now...   Apr 16 2012, 12:25
- - IgorC   Starting from previous knowledge will be somethin...   Apr 17 2012, 14:28
- - Dynamic   QUOTE (MaiTiano @ Apr 16 2012, 11:00) Any...   Apr 18 2012, 11:51
- - MaiTiano   I would like to add a more specific example to ill...   Apr 18 2012, 12:35
- - Dynamic   You've defined your problem a bit better. You...   Apr 18 2012, 13:22
|- - MaiTiano   QUOTE (Dynamic @ Apr 18 2012, 14:22) You ...   Apr 19 2012, 03:27
|- - saratoga   QUOTE (MaiTiano @ Apr 18 2012, 22:27) I h...   Apr 19 2012, 03:33
|- - MaiTiano   QUOTE (saratoga @ Apr 19 2012, 04:33) Sin...   Apr 19 2012, 03:44
|- - Dynamic   I'd assumed, perhaps wrongly, that you were di...   Apr 19 2012, 20:41
|- - MaiTiano   QUOTE (Dynamic @ Apr 19 2012, 21:41) I...   Apr 20 2012, 04:39
- - Dynamic   [1] - Yes, I think it's the whole song [2] - I...   Apr 25 2012, 20:44
- - MaiTiano   QUOTE (Dynamic @ Apr 25 2012, 21:44) [1] ...   May 22 2012, 02:24

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