Bill,
Thanks for these links, they look useful.
Graham
On 6/17/05, werainey <> wrote:
> Graham,
> If you have time to peruse the almost dizzying array of
> bioacoustic/signal analysis programs you could get a start on
> the task via Steven Hopp's web site:
> <http://zeeman.ehc.edu/envs/Hopp/sound.html>
>
> As previously mentioned, Kim Beeman's program 'Signal' has a
> module that seems matched to your task and is highly
> regarded and widely used in academia and elsewhere.
>
> David Mellinger's freeware program Ishmael lists automated
> call recognition among its capabilities
> <http://cetus.pmel.noaa.gov/cgi-bin/MobySoft.pl>
>
> Could you offer more information about the new bat detector you
> mentioned? It seems quite interesting.
> Bill
> > Bill,
> >
> > 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
> > card.
> >
> > 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.
> >
> > Thanks,
> >
> > Graham
> >
> > 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. hoarybat.com>,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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> Service.
>
>
>
>
>
> "Microphones are not ears,
> Loudspeakers are not birds,
> A listening room is not nature."
> Klas Strandberg
>
>
> ________________________________
> Yahoo! Groups Links
>
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/naturerecordists/
>
> To unsubscribe from this group, send an email to:
>
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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