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Lossy or lossless? - Software to analyze audio files  
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StrokeTheBoots
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Post 2016-10-04 07:24   [Quote] 
Hey guys,

I bet this has been discussed before but I could not find anything (and I didn't have that much patience, TBH).

I found some very old burned CDs and don't know if they have been copied directly or if they are mp3-sourced...I certainly could find software to help me with that with googling, but I'd rather have a recommendation from you guys Wink

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Galeans
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Post 2016-10-04 08:50   [Quote] 
If you want to do it the easy way, rip the CD tracks into wave and then analyze them with Traders Little Helper (a freeware which is a must if you work with Flac files).

cheers

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StrokeTheBoots
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Post 2016-10-04 09:40   [Quote] 
Galeans wrote:
If you want to do it the easy way, rip the CD tracks into wave and then analyze them with Traders Little Helper (a freeware which is a must if you work with Flac files).

cheers


I use that program for the ffp-files when I contribute something here. Didn't know that feature - will try. Thanks!

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Galeans
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Post 2016-10-04 18:25   [Quote] 
Analysis -> Test Wav files for MPEG

Only works with wave, though.

cheers

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StrokeTheBoots
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Post 2016-10-05 16:38   [Quote] 
Galeans wrote:
Analysis -> Test Wav files for MPEG

Only works with wave, though.

cheers


01 - Anna Ternheim - Intro.wav: track looks like MPEG with probability 95%.

...so, which program to use to analyze the actual bitrate of the lossy format?

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StrokeTheBoots
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Post 2016-10-10 14:41   [Quote] 
bump.

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flambay
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Post 2016-10-10 15:41   [Quote] 
StrokeTheBoots wrote:
Galeans wrote:
Analysis -> Test Wav files for MPEG

Only works with wave, though.

cheers


01 - Anna Ternheim - Intro.wav: track looks like MPEG with probability 95%.

...so, which program to use to analyze the actual bitrate of the lossy format?


You mean like 128k or 320k ?

I believe any playback programme (Winamp or Foobar)
shows the actual bitrate while playing the file.

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DLHotch
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Post 2016-10-10 16:10   [Quote] 
You can also right-click on the file in Windows (10 here) File Explorer and select 'properties', the bitrate shows on the 'details' tab.
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flambay
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Post 2016-10-10 16:41   [Quote] 
DLHotch wrote:
You can also right-click on the file in Windows (10 here) File Explorer and select 'properties', the bitrate shows on the 'details' tab.

Good to know - thanks for that hint.

Works also with Windows 7.

Obviously this only works for original mp3 files,
not for mp3 files burned to CD-R
and subsequently extracted to wav file format.

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DLHotch
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Post 2016-10-10 17:15   [Quote] 
flambay wrote:
...Obviously this only works for original mp3 files,
not for mp3 files burned to CD-R
and subsequently extracted to wav file format.


Correct, it only tells you the bitrate of the current file without any hint of the lineage bitrate(s) which may be better - or worse.
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StrokeTheBoots
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Post 2016-10-10 17:25   [Quote] 
DLHotch wrote:
flambay wrote:
...Obviously this only works for original mp3 files,
not for mp3 files burned to CD-R
and subsequently extracted to wav file format.


Correct, it only tells you the bitrate of the current file without any hint of the lineage bitrate(s) which may be better - or worse.


That's my problem. I'm talking about CD-R's with files of which I can't tell the original quality...

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mrnym
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Post 2016-10-10 17:57   [Quote] 
StrokeTheBoots wrote:

That's my problem. I'm talking about CD-R's with files of which I can't tell the original quality...


Good point. The current bitrate won't necessarily be accurate. For example if a 320kbps mp3 is converted to WAV, it will show bit rate as 1411kbps, same as a lossless 16/44.1 file. The best bet for checking files of uncertain origin/quality is looking at the Frequency Analysis and Spectral Analysis graphs for the file(s) in question.

Audacity, which is free, can make rudimentary graphs of these. Audacity's FA is okay, but its SA is not so useful, imo. I'm on a Mac and use iZotope RX, an audio repair program. Excellent, detailed graphs, but the program is quite pricey. Other professional or semi-professional audio repair/edting programs will probably do the same at a lower cost.
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NO8DO
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Post 2016-11-04 18:21   [Quote] 
What is the Traders Little Helper equivalent for Mac?
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doctorzap
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Post 2016-11-04 18:56   [Quote] 
throw 512 kbs aac files into the mix and things become much more difficult
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mrnym
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Post 2016-11-05 15:24   [Quote] 
NO8DO wrote:
What is the Traders Little Helper equivalent for Mac?


I'm not that familiar with TLH, so I don't know what all it does. There may not be a direct counterpart for Mac. Two programs I use a lot on the Mac are xACT & XLD. xACT is great for tagging, decoding FLAC/ALAC to WAV/AIFF, encoding for WAV/AIFF to FLAC/ALAC, or even converting to Lossy formats. It will SHN and most other audio formats, fix sector boundary errors, etc. It will also rip CDs, but I like XLD better for that. XLD will also do must of the other functions I mentioned too, I believe.
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