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I use a microphone array to localise a sound source in a small lecture theatre. I tested it with white noise and a bird noise source. I found out that the white noise source give very good results. However, bird noise give noisy results.

My question is: does white noise produce less reverb and echo noise? If so, why is that?

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  • $\begingroup$ Can you elaborate on what you are using as a sound source and how far away the microphones are, things like that? And is it a resonant sound with the bird noise? $\endgroup$ – n00dles Jan 31 '16 at 18:09
  • $\begingroup$ are you trying to get the space's Reverberation time and sound characteristics? such as waterfall diagrams? $\endgroup$ – frcake Jan 31 '16 at 22:42
  • $\begingroup$ Reverb is signal spectral dependend. since your bird noise have a different energy spectrum as white noise it gives a different result. White noise have o lot of hight frequency energy. bird noise i don't know?? You can test with a chirp to see where in the spectrum the lecture theatre gives most reverb. Probably is a lot of energy in the spectrum of the bird noise $\endgroup$ – Jan-Bert Feb 1 '16 at 9:15

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