Monday, August 17, 2015

Logarithmic Sine Sweep for Impulse Reponse Measurements (in Python/Numpy)

There's quite a lot of software available to do impulse response measurements, e.g. for doing measurements on loudspeakers or electronic audio equipment. Some also use it to sample the impulse responses of rooms and halls to get realistic reverb.

To learn about the technique (on which one can find quite a few publications using google) I'm going to implement the analyses in python/numpy.

The first building block is a small script to generate such a sweep and which I've published, as usual, on github:

Below you can find a spectrogram made using the magnificent baudline.

From Chris’ Miscellanea

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