Audio application

SFTalk Group..
I am desireous to utilize the Sound Card in a application for my hobby (Amateur Radio). I want to process the audio from a receiver with a FFT algorithm and use SwiftForth to view the real-time audio spectrum. In addition, I want to be able to click on an area of interest and set adjustable digital filters. For a little background, take a look at the following: http://www.arrl.org/tis/info/pdf/9402qex2.pdf . This explains the algorithms needed. My question to the group is has anyone interfaced to the sound card, or developed spectagraph software using SwiftForth ? What about real-time FFT ? It looks like the API for the sound card is DirectX from Microsoft. That is all I can find for now. Any comments on the subject appreciated.
Virgil
Received on Thu Jan 11 2001 - 17:13:40 PST