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AES Audio Product Education Institute Hosting Webinar On Demystifying Microphone Beamforming

New voice and DSP education pillar to be presented Wednesday, June 13 will address microphone beamforming in theory and practice as well as recent optimizations for voice recognition platforms.

The Audio Product Education Institute (APEI), an initiative of the Audio Engineering Society (AES), will be presenting a new webinar in its voice and DSP education pillar entitled “Demystifying Beamformers,” addressing microphone beamforming in theory and practice as well as the recent optimizations for voice recognition platforms and scheduled for this coming Wednesday, June 13 beginning at 12 pm U.S. EDT. (Register here.)

Beamforming is a signal processing technique explored in radio frequency and acoustics applications, and due to advancements in DSP, it’s widely implemented in loudspeaker directivity control and for the processing of signals from multiple omnidirectional microphones to help optimize the performance of speakerphones and voice recognition systems.

The performance of a beamformer in voice capture depends on how well the beam pattern of the microphone array can be optimized as well as the signal-to-noise ratio (SNR) of the array. Attendees of the webinar will learn about beamformer functionality, including how the number of microphones and geometry impacts performance, the importance of microphone matching and SNR, and how to create steerable arrays. The presentation will also address the technical challenges with beamforming and how new MEMs microphones can help give consistent directionality across the audible range and good SNR.

Following an introduction on beamformers by Paul Beckmann (the co-founder and CTO of DSP Concepts), Sahil Gupta (co-founder and product lead at Soundskrit) will discuss the frequency dependency of broadside beamformers and the SNR challenge with differential endfire beamformers when trying to create dipoles. In the third presentation, Arash Radmoghadam (director of engineering and Applied Machine Learning at will discuss improving voice activation and recognition with beamforming.

The webinar will be hosted by Dave Lindberg (DB Enterprises, Hong Kong), APEIs Supply Chain and Sourcing pillar co-chair. Attendees will be able to submit questions to the presenters, which will be addressed in the last 30 minutes of this session.

The Audio Product Education Institute’s Voice and DSP education pillar is sponsored by DSP Concepts. Go here to register for the webinar.


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