Skip to main content
Topic: FFT and Spectrograms (Read 1750 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

FFT and Spectrograms

Can anyone suggest a direction for me to learn the process of using FFT to create 3D spectrograms...?

I will be using raw sample data decoded from PCM WAV files.

From what I know so far, I am thinking that I would need to use FFT to transpose the signal from the time domain to the frequency domain at various frequency intervals. Then that would give me, in a manner of thinking, the "purpendicular slices" that I would have to plot into the Z-axis of the array, and which would represent the amplitude of the signal at each center frequency over time.

Does this make sense?

Anyone got any suggestions and/or web pages for me to learn this kind of thing?

Thanks!
Back off, or I'll flick a booger on your windshield!


 

FFT and Spectrograms

Reply #2
Thanks!
Back off, or I'll flick a booger on your windshield!

 
SimplePortal 1.0.0 RC1 © 2008-2019