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Cannot find how to extract start-end time & duration for eac

Posted: Wed Nov 20, 2013 9:53 pm
by adcity232
Audacity: 2.0.3
Windows 7 Home Premium x64 SP1 Build 7601

My files either in mp3 or wav format.

These files are video subtitles (sub) converted into sound.
Each file is an audio track and all tracks structured the same way.

The structure is: Silence Gap(sg), Sub

So it goes like this: sg,Sub,sg,Sub,sg,Sub.... till track ends.

All sg(s) and Sub(s) have variable length.

I am looking for start-end time and duration(if available) for each Sub within the track.
Having Silence Gap data would be helpful as well.

Thanks.

Re: Cannot find how to extract start-end time & duration for

Posted: Wed Nov 20, 2013 11:00 pm
by steve
In Audacity a "silence" and a "gap" are not quite the same thing.
This image shows two "silences" with a "gap" between them:
firsttrack000.png
firsttrack000.png (6.53 KiB) Viewed 730 times
In your description, is "sg" a "Silence" or a "Gap"?

If it is a "Gap" then you can get the times by double clicking on a "Sub" to select it, then read the time from the Selection Toolbar http://manual.audacityteam.org/o/man/se ... olbar.html

Re: Cannot find how to extract start-end time & duration for

Posted: Wed Nov 20, 2013 11:41 pm
by adcity232
Sorry for confusion and thank you for clarifying "silence" and "gap".

It is silence only. There is no "gaps" in the track.

Hopefully, there is a process that reads the track and create a list of all
Sub start/end times.

Thanks.

Re: Cannot find how to extract start-end time & duration for

Posted: Thu Nov 21, 2013 1:56 am
by steve
Try using "Sound Finder" to mark all of the "Subs". http://manual.audacityteam.org/o/man/si ... html#sound
You can then tab across from one label to the next and read off the times from the Selection Toolbar.

Re: Cannot find how to extract start-end time & duration for

Posted: Thu Nov 21, 2013 3:11 am
by adcity232
Steve,

Thanks for your guidance.
It's indeed helped me with my analysis.