How can we set a beamformer to produce an output that is referenced to microphone 1 of the recording array and not to the middle of the array (as currently set in phased array system toolbox)?

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Ivana Jovanovic 2018-11-23

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https://ww2.mathworks.cn/matlabcentral/answers/431511-how-can-we-set-a-beamformer-to-produce-an-output-that-is-referenced-to-microphone-1-of-the-recording

I would like to evaluate the enhancement of the signal acheived by beamforming by comparing the noise in the signal received at microphone 1 and the output of the beamformer. For this, I would need that the output of the beamformer is produced with respect to the signal received at mic 1. This is to say that there should be no delay between the output of the beamformer and the signal received at mic 1. I work with an array of two microphones.