[Asterisk-Users] Spectrum Analyizer software

[John Todd]

This was an interesting post from another list 
I'm on.  I think that with all of the echo 
cancellation discussion happening, that someone 
perhaps might be on the lookout for this type of 
software, so this post was well-timed for 
Asterisk uses.  It is perhaps the case that those 
of you working on volume/echo/etc stuff might 
find this useful towards your goals.

JT


>To: [snip]
>From: [snip]
>Date: Thu, 15 Jul 2004 06:08:33 +0200 (CEST)
>Subject: Re: [snip] Noise masking to defeat listening devices
>
>
>
>I didn't play with signal analysis yet. But I was looking around for some
>software and there are some interesting pieces around.
>
>For Linux, there is often mentioned an excellent-looking one, Baudline
><http://www.baudline.com/>. Not opensource but for no money.
>
>For Windows, there is the $99 shareware Sigview <http://www.sigview.com/>.
>
>A list of various digital signal processing programs is also here:
><http://www.setileague.org/software/softlink.htm> but many links are dead.
>
>
>An interesting program is also SkySweep
><http://www.skysweep.com/index.html>.
>
>Lots of software can be found here:
><http://www.dxzone.com/catalog/Software/DSP/>
>
>libDSP <http://libdsp.sourceforge.net/overview.html> is an open-source
>collection of various math functions for digital signal processing. A
>highly optimized library for Fourier transformation is FFTW,
><http://www.fftw.org/>. These will be useful if you would like to grow
>your own DSP software.
>
>
>And there's much more. But Baudline is what I heard about the most often.
>
>
>On Wed, 14 Jul 2004, [snip] wrote:
>
>>  Check the archives.  There was a spirited discussion some time ago about
>>  PC software audio spectrum analysis.  The program I use is no longer
>>  available (adobe took it off the market), but there are s number of
>>  excellent ones out there at low cost.  Some of those provided by Amateur
>>  operators are excellent.
>>
>  > Cheers,
>  > [snip]
>  >
>  > [snip] wrote:
>  >
>>  >
>>  >   I have also been testing a Windows application written by REI, the
>>  > â*œASA-2000â* audio spectrum analyzer.  This seems to be a well written
>>  > application and it provides a lot of good information using a standard
>  > > laptop (with sound and microphone) but I have been afraid to ask what
>>
>[snip]