How do we get energy specters for random waves

AI Thread Summary
To calculate energy specters from random sound waves sent to a probe, one can use Fast Fourier Transforms (FFTs), which analyze fixed sample sequences. Many free FFT applications are available across various platforms, requiring input in batches of 2^n - 1 samples. These applications provide insights into the spectral content of the original signal. Users are encouraged to search for suitable software options online. Understanding FFTs is essential for effective digital signal analysis.
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Hello!

I want to know, how do we get (i mean how do we calculate) energy specters if we send random sound waves to a probe. Is there any Linux computer program capable of doing this?


Regards Ziga
 
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Any digital analysis will be applied to a fixed number of samples and it will assume that this sequence is repeated. That's the basis of FFTs. Having accepted this, then there must be lots of free FFT applications for any platform you want which just require a string of samples - usually in batches of 2^n - 1 samples. That will give you an indication of the Spectral Content of the original signal.
Get Googling!
 

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