Decode WAV stream from Polar heartratemonitor

I have a Polar hartratemonitor (RS200) that can upload exercisedata to a internetsite from Polar. For uploading Polar uses a program that they call Polar Uplink and it works with a wav soundsignal from my heartratemonitor. In the heartratemonitor I select a exercise and held the heartratemonitor near the microfone from my computer to send the data to the internet. Now I want to send the data to my local computer. I think Polar uses a WAV file format because I can also download some data to my heartratemonitor and they are in a wav file format. How can I do that in Visual C#?

I want to put the data from the wav stream in a database or in a textfile.

[703 byte] By [HenkGouma] at [2008-1-7]

«« WCF Publishing Wizard Beta 2 - Metadata only exception
»» data base filed in the text file

# 1

Here is an article from CodeProject on how to capture an audio stream.

Of course, you could also use the Sound Recorder application (look in Accessories > Entertainment).

The real problem is going to be extracting the data from the waveform. That is how are the bits encoded with the sound? A common technique would be to use tones of two different frequencies for representing binary ones and zeros. This is called frequency shift keying. But it could be more complicated and will require some digital signal processing techniques to decode the data.

jrboddie at 2007-10-2 >

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