Audio frequency analysis

[[email protected]]

I am interested is performing an analysis of an audio recording to
identify frequency changes, timing and volume data (signal processing
techniques ). I am using Visual Basic 6.0 and would like to use this
platform for development.

Thanx...

....Moose

[Scott Dorsey]

In article >, > wrote:
>I am interested is performing an analysis of an audio recording to
>identify frequency changes, timing and volume data (signal processing
>techniques ). I am using Visual Basic 6.0 and would like to use this
>platform for development.

I suggest you might be better off with something like Matlab, or even
with Octave (which is a free Matlab clone). It already has power spectrum
functions, plotting functions, and filters built in.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[[email protected]]

Thanks Scott...

I downloaded Octave and it looks like there will be a bit of a
learning curve there for me. I have been able to find a bunch of
Visual Basic stuff which I am fiddling with now.

http://www.audiotoolsdirect.com/Developers_Kit/index.shtml
http://www.fmod.org/fmodfeatures.html
http://www.synchrondata.com/pheaven/www/area25.htm
http://synthigence.com/eshop/10download.asp
http://www.hitsquad.com/smm/win95/SPECTRUM_ANALYZERS/
http://www.dewresearch.com/fftp-main.html
http://www.vbaccelerator.com/home/vb/Code/vbMedia/Audio/WAV_File_Viewer/article.asp

Planet Source Code also has a lot of code that seems applicable.

....Moose


On 24 Aug 2006 10:00:04 -0400, (Scott Dorsey) wrote:

>In article >, > wrote:
>>I am interested is performing an analysis of an audio recording to
>>identify frequency changes, timing and volume data (signal processing
>>techniques ). I am using Visual Basic 6.0 and would like to use this
>>platform for development.
>
>I suggest you might be better off with something like Matlab, or even
>with Octave (which is a free Matlab clone). It already has power spectrum
>functions, plotting functions, and filters built in.
>--scott