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Re: WAV files to Frequecy vs.Time Plot?

Subject: Re: WAV files to Frequecy vs.Time Plot?
From: Tim Nielsen <>
Date: Sat, 1 Oct 2005 18:47:13 -0700
Hmm, this is running it through the MS filter? The MKH mics should be=20
pretty close to each other. There might be some level discrepancies,=20
I wouldn't worry too much about it. But make sure that you don't have=20
the gain range set differently for the inputs, each can be set to=20
either high or low.

But if the channels are linked, they should be close.

In case you need batteries for your 722, here's a very good deal on=20
them:

http://batterybank.com/master/npf960.html

I have three. There is a slight problem that the pins on the battery=20
have a tendency to come out slightly as you remove a battery from the=20
722, so you have to be a bit careful.

Also from that page you can find cheap chargers. The $42 batteries=20
seem to power the unit for about 4 hours or so, pretty good.

I think the Cornell Bird program makes a program called Raven, which=20
is supposed to be very good for analyzing sounds for the info you're=20
looking for. And it's probably written for nature recordists.

Hey, if you get any really great recordings, I'd love to hear some. I=20
actually work in the film sound FX business, and if you get any=20
really great rainforest recordings, birds, etc, the film I'm working=20
on (Pirates of the Caribbean 2) might even be willing to buy some of=20
them. Just a thought. I'm hoping to go to Costa Rica and record in=20
January, if I can find the time off.

But curious what kinds of things you're going to be recording down=20
there? I envy you. My first love is recording, and if I could change=20
jobs, I'd find something in bio-acoustics somehow. But I'd love to=20
hear about your project.

Tim

On Oct 1, 2005, at 6:33 PM, nbioacoustics wrote:

> Thanks Ed. Great! I'll try that, thanks Ed. I feel bad because I feel
> like I'm sucking information out of you guys and not giving any, but
> I'm so new to this that I have nothing to contribute yet...I hope to
> one day!
>
> Another question: when I listen to a recording of myself walking
> around my mics (a cardioid piggbacked on top of a figure 8), I notice
> that my humming is louder when I'm on the sides than when i'm directly
> in front of the mics (even distance in all locations), which makes me
> wonder if there's something unequal about my mics... They are lined up
> with the capsules equal. One is a MKH 30 and the other a 40. Any idea
> of why this might be?
>
> --- In  Ed Anson <>=20
> wrote:
> > What you want is a spectrograph. There are several products=20
> available
> > than can provide that for you. They vary widely in quality and=20
> cost. I
> > would suggest you try two things:
> > 1. Check out Audacity. It is a free downloadable editor that can
> > produce a spectrogram.
> > 2. If that doesn't meet your needs, just Google spectrograph and you
> > will find a number of alternatives.
> >
> >
> > On Oct 1, 2005, at 9:16 PM, nbioacoustics wrote:
> >
> > > So now that I can record from MS to stereo, how can I look at my
> > >  'data' as a graph showing Frequency as a function of Time?
> > >
> > >
> > >
> > >
> > > "Microphones are not ears,
> > >  Loudspeakers are not birds,
> > >  A listening room is not nature."
> > >  Klas Strandberg
> > >
> > >
> > >
> > > SPONSORED LINKS
> > > Science kits
> > > Science education
> > > Science kit for kid
> > > Natural sound
> > > Recording technique
> > > My first science kit
> > >
> > > YAHOO! GROUPS LINKS
> > >
> > >       =E2=96=AA       =C2 Visit your group "naturerecordists" on the =
web.
> > > =C2
> > >       =E2=96=AA       =C2 To unsubscribe from this group, send an ema=
il=20
> to:
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> > > =C2
> > >       =E2=96=AA       =C2 Your use of Yahoo! Groups is subject to the=
=20
> Yahoo! Terms of
> > > Service.
> > >
> > >
>
>
>
>
>
> "Microphones are not ears,
> Loudspeakers are not birds,
> A listening room is not nature."
> Klas Strandberg
>
>
>
> SPONSORED LINKS
> Science kits  Science education       Science kit for kid
> Natural sound Recording technique     My first science kit
>
> YAHOO! GROUPS LINKS
>
>  Visit your group "naturerecordists" on the web.
>
>  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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