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Re: [vox-tech] Marking Audio file based on Freq.
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Re: [vox-tech] Marking Audio file based on Freq.

> Unfortunately I don't have any uncompressed samples of that species yet 
> or even know the real origin of that file. The devices I built are going 
> to deliver me flac files specifically because of that issue. (Cowon A3)

Nice.  Stereo or mono.

> After looking at the text dump some more and a spectrogram I actually 
> found the base frequency of the call is more in the 150-250 hz range, 
> but I need to play with it this weekend and run some real descriptive 
> stats and try those calculations.

Cool.  Certainly filtering out the unused frequencies will help on multiple
fronts (mostly CPU time and storage)

> The key to the playback part, is that I'm not the one who will be 
> listening to them. So it's important that I flag the spots of interest 
> and then pass the info on to less technical people who will listen to 
> each spot, and look at the graphs. So giving them and interface that I 
> don't have to write is relatively important.

I'm missing the don't have to write part.    Easy to use I get.

> You'll notice both Audacity 
> and Sonic have nice pretty color spectrogram options.

Right as does the cut and paste source code I pointed to.

I just figured it's easier to do something like:

for i in 0 to end_of_audio()
	if time[i][500]>40 # if 500 hz > -40gb
for i in times:
	if (query_yes_or_no())

Seems like it would be as easy or easier than using an audio editing,
especially since it would handle the user answers instead of saying,
look at every sample I marked on track #3 and then record in a spreadsheet
which ones are real with a timestamp or sample number.
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