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Discussion Groups | Audio Signal Processing | time delay using matlab
Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
time delay using matlab - onth...@gmail.com - Dec 12 12:32:00 2005
hi all, i'm new to MATLAB, even newer to DSP! i need an algorithm to find and plot the time delay between the acoustic signal from one source, recieved at 2 microphones placed some distance apart... once i find the time delay, i can find the angular location of the source. i ve been struggling with this... kindly help me thank you nikhil
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Re: time delay using matlab - Martin Eisenberg - Dec 13 17:00:00 2005
From: <onthelimit@onth...> > i need an algorithm to find and plot the time delay > between the acoustic signal from one source, recieved > at 2 microphones placed some distance apart... Take the crosscorrelation (xcorr, I think) of the two signals and locate the maximum of smallest index in the result. If the time resolution your sampling rate affords is too low, try finding the tip of a parabola through the maximal point and its two neighbors. Martin
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