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Re: Re: Sound analysis software

Subject: Re: Re: Sound analysis software
From: Graham Smith <>
Date: Thu, 16 Jun 2005 19:17:24 +0100

No these are wav files, I have been using Anabats with Analook, but
the first proptotype of our new bat detector should be up and "sort
of"  running in a week or so and it uses wav files saved to an SD

However, I didn't realise yuu could constrcut a filter with Analook,
and as I am still using Anabats I will give that a look.



On 6/16/05, werainey <> wrote:
>  Graham:
>  Are these wav files or Anabat files? If they are Anabat files and 
>  you are wish to detect a constant frequency call as you did 
>  previously, there are several free programs on Chris Corben's 
>  web site (<www.>,both the DOS and Windows 
>  versions of Analook) in which you can construct a filter which 
>  recognizes those calls, then use it to screen either single 
>  directories or a directory hierarchy. The identified files then can 
>  be visually examined to see how well the filter is working and 
>  perhaps iteratively improved by tweaking parameter settings.
>  There is also a simple scripting system in the Windows version 
>  that will yield text files that include the times of all selected 
>  detections either individually or aggregated by ten minutes, one 
>  hour, etc.
>  The system is under construction and thus isn't without wrinkles, 
>  but it is powerful for many tasks in this arena. One virtue of 
>  working with these simplified files is speed even on low end 
>  computers. I use a several year old laptop to initially screen data 
>  sets of a year or more containing many tens of thousands of 
>  files, most with multiple bat calls, in ten or fifteen minutes. If you 
>  want to look at each 'hit' it will take a while, but you can visually 
>  assess several per minute, until RSI forces you to do something 
>  else for a while.
>  Best,
>  Bill Rainey
>  --- In  Graham Smith 
>  <> wrote:
>  > Can anyone help in pointing me towards some sound anlysis 
>  software
>  > that either does this anyway or might allow a macro to be 
>  written.
>  > 
>  > Its bat calls again, for those who remember my last plea for 
>  help.
>  > 
>  > I am going to end up with thousands  of short (15secs)  wav  
>  files.
>  > which I want to open quickly, one after the other and visually 
>  scan
>  > through for a specific sonogram shape.
>  > 
>  > I want to be able  to dump all the files into one directory, then 
>  with
>  > one keypress open the first file in the directory, then by 
>  pressing
>  > that same key again, close the currently open file, and open the 
>  next
>  > file in the same directory. And so on until every file has been
>  > inspected.
>  > 
>  > Can anyone suggest a program that might do this, or indeed 
>  suggest a
>  > better way of scanning through thousands of small files, very 
>  quickly.
>  > 
>  > Many thanks,
>  > 
>  > Graham
>  "Microphones are not ears,
>  Loudspeakers are not birds,
>  A listening room is not nature."
>  Klas Strandberg 
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