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Paper detail

Two Channel Audio Zooming System For Smartphone

In this paper, two microphone based systems for audio zooming is proposed for the first time. The audio zooming application allows sound capture and enhancement from the front direction while attenuating interfering sources from all other directions. The complete audio zooming system utilizes beamforming based target extraction. In particular, Minimum Power Distortionless Response (MPDR) beamformer and Griffith Jim Beamformer (GJBF) are explored. This is followed by block thresholding for residual noise and interference suppression, and zooming effect creation. A number of simulation and real life experiments using Samsung smartphone (Samsung Galaxy A5) were conducted. Objective and subjective measures confirm the rich user experience.

preprint2020arXivOpen access
Anant KhandelwalE. B. GoudY. ChandL. KumarS. PrasadN. AgarwalaR. Singh
eess.ASSound
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Anant KhandelwalE. B. GoudY. ChandL. KumarS. PrasadN. AgarwalaR. Singh

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