I have two microphones separated by a distance d placed in end-fire configuration.
Audio input data was played from the front side (i.e corresponding to 0 degrees.)
The data picked by microphone1 and microphone2 is then plotted in MATLAB and compared.
There will be an initial delay of (d/c) between the two microphones, where d is the distance between the microphones and c is the speed of sound in air.
If we compare the data samples at the middle of the waveforms, the delay between the two microphones is varied. The delay between the two sets of data samples is varying with time.
How to estimate the transfer function of the system model such that data of microphone1 when passed through some system results in microphone2 data set?