R&D Stories: How to Choose the Right Signal Processing Technique

The Chief Science Officer at AudioTelligence discusses the merits and challenges of using beamforming and blind source separation techniques to correctly process voice sources from the audio signals picked up by microphones in real-world situations. This article explains how these signal processing techniques can help deal with the noises that make it difficult to pick out and clearly hear voice, and how to obtain clean audio signals picked up by microphones contaminated with interference, noise, and reverberation. This article was originally published in audioXpress, November 2022.

audioXpress' November 2022 cover highlights this year's Speaker Design Competition, an extensive Market Update on Wireless Audio technology and two articles addressing Digital Signal Processing techniques. Frans de Wit explains the real improvements that can be achieved on power supply design for high-end audio systems, and Chuck Hansen opens up a valuable series on Power Transformers for audio electronics. Finally, Scott Dorsey visits the Lundahl Transformers factory in Sweden, while Richard Honeycutt revisits Voltage Regulator (VR) Tubes used in Audio Amplifiers.