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Author Topic: Strange issue with automatic audio analysis after importing  (Read 1733 times)

gummbah

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Strange issue with automatic audio analysis after importing
« on: March 20, 2008, 09:12:46 am »

Everytime I hit the Run Auto-Import Now MC starts analysing 132 files, even if nothing new is imported.
I do not which files these are. A smartlist showing files that don't need audio analysis does not report any files lacking analysis.
Sorting in the main audio pane on replay gain or album gain also does not show any files without analysis.

I suspect somehow these are files without sound (those often at the end of a cd). I remember some versions ago MC could not analyse these files and they showed up each time you wanted to a manual analysis as well. Maybe this old problem has returned in automatic analysis?

EDIT: Sorting in main audio pane indeed shows that I have exactly 132 of those no sound files. They do show up with a replay gain value of 51 dB. It seems automatic analysis tries to reanalyse them.

Suggestions?
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Matt

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Re: Strange issue with automatic audio analysis after importing
« Reply #1 on: March 20, 2008, 11:17:17 am »

Everytime I hit the Run Auto-Import Now MC starts analysing 132 files, even if nothing new is imported.
I do not which files these are. A smartlist showing files that don't need audio analysis does not report any files lacking analysis.
Sorting in the main audio pane on replay gain or album gain also does not show any files without analysis.

I suspect somehow these are files without sound (those often at the end of a cd). I remember some versions ago MC could not analyse these files and they showed up each time you wanted to a manual analysis as well. Maybe this old problem has returned in automatic analysis?

EDIT: Sorting in main audio pane indeed shows that I have exactly 132 of those no sound files. They do show up with a replay gain value of 51 dB. It seems automatic analysis tries to reanalyse them.

Suggestions?

Next build will only try to reanalyze every 30 days if there was a failure.

What happens if you manually analyze one of the failing files using the Audio Analyzer?
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Matt Ashland, JRiver Media Center

gummbah

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Re: Strange issue with automatic audio analysis after importing
« Reply #2 on: March 20, 2008, 03:28:13 pm »

Next build will only try to reanalyze every 30 days if there was a failure.

What happens if you manually analyze one of the failing files using the Audio Analyzer?

When selecting these songs for manual analysis, they do get reanalysed.
That's strange, because they all have been analysed already and got a 51 dB replay gain value.
I do have 'skip analysed files' checked though.
Is there a way to keep them from being re-analysed?
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gummbah

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Re: Strange issue with automatic audio analysis after importing
« Reply #3 on: March 23, 2008, 05:01:47 pm »

Next build will only try to reanalyze every 30 days if there was a failure.

The new build did not solve my problem. The files keep being re-analysed.
Apparently the analysis does not produce a failure. Yet still they are re-analysed over and over again upon auto-import.
Any thoughts?
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Alex B

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Re: Strange issue with automatic audio analysis after importing
« Reply #4 on: March 23, 2008, 05:45:11 pm »

Quote
A smartlist showing files that don't need audio analysis does not report any files lacking analysis.

The following smartlist rule would check all fields that need to be populated:
[Media Type]=[audio] ([Replay Gain]=0 or [Peak Level]=0 or [BPM]=0 or [Intensity]=0)

If the analyzer couldn't detect any beat the BPM field was not be filled.

You can select all files that have an empty BMP value and change the value to something else, like 1.
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gummbah

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Re: Strange issue with automatic audio analysis after importing
« Reply #5 on: March 24, 2008, 03:38:20 am »

The following smartlist rule would check all fields that need to be populated:
[Media Type]=[audio] ([Replay Gain]=0 or [Peak Level]=0 or [BPM]=0 or [Intensity]=0)

If the analyzer couldn't detect any beat the BPM field was not be filled.

You can select all files that have an empty BMP value and change the value to something else, like 1.

Thanks, this helped.
Can this also be implemented automatically in MC?
When no beats are found, then use 1 as a value instead of 0?
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Alex B

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Re: Strange issue with automatic audio analysis after importing
« Reply #6 on: March 24, 2008, 04:33:34 am »

Maybe the automatic analyzer should check only the replay gain and peak tags. If another proram has already added these tags in a compatible format the automatic analyzer would not unnecessarily reanalyze the files.

The BPM and Intensity fields are not needed for the volume leveling feature. They can only be used for displaying and sorting data. It is always possible to run the manual analyzer if the user wants to add the Intensity and BPM values.
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