SignalLab VCL
Soundcard analysis of doppler
Thread Starter: beacon Started: 7/11/2007 8:29 AM UTC
Replies: 2
7/11/2007 8:29 AM UTC
Soundcard analysis of doppler
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beacon

Hi,

I just downloaded signallab, it's got a lot cool stuff, but I am only a novice when it comes to coding. I've tried before but rude people killed my enthusiasm. :(

What I would like to do is feed the audio that's coming from my soundcard via a communications receiver. What I have is a simple setup at the moment. I have a TSLWaterfall, and TSLFourier on the form.

The TSLFourier input and out are "disconnected", but the SpectrumOutputPin is set to the waterfall (v/v waterfall input to TSLFourier).

Later I will want to plot the slow "doppler shifts" to a line graph for a given time period, like for example 24 hours.

So how do I go about feeding the soundcard audio to the TSLFourier input, thus getting it on the waterfall? I would appreciate any help or code examples.

 

 
7/11/2007 1:29 PM UTC
Re: Soundcard analysis of doppler
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Jonathan Benedicto

beacon wrote:
So how do I go about feeding the soundcard audio to the TSLFourier input, thus
getting it on the waterfall? I would appreciate any help or code examples.

Use TALDSAudioIn -> TALAudioToReal -> TSLFourier

HTH

Jon
7/12/2007 3:49 AM UTC
Re: Soundcard analysis of doppler
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Boian Mitov

Hi Beacon,

You need AudioLab to get the data from a sound card. You can do as Jonathan suggests, or you can use the TALSpectrum component and connect it directly to a waterfall. There is even demo showing this in AudioLab.

With best regards,
  Boian Mitov

beacon wrote:
Hi,
I just downloaded signallab, it's got a lot cool stuff, but I am only a novice when it comes to coding. I've tried before but rude people killed my enthusiasm. :(
What I would like to do is feed the audio that's coming from my soundcard via a communications receiver. What I have is a simple setup at the moment. I have a TSLWaterfall, and TSLFourier on the form.
The TSLFourier input and out are "disconnected", but the SpectrumOutputPin is set to the waterfall (v/v waterfall input to TSLFourier).
Later I will want to plot the slow "doppler shifts" to a line graph for a given time period, like for example 24 hours.
So how do I go about feeding the soundcard audio to the TSLFourier input, thus getting it on the waterfall? I would appreciate any help or code examples.