Audio Bandwidth Extension: Application of Psychoacoustics, Signal Processing and Loudspeaker Design

By Erik Larsen and Ronald M. Aarts

Bandwidth extension (BWE) refers to various methods that increase either the perceived or real frequency spectrum (bandwidth) of audio signals. Such frequency extension is desirable if at some point the frequency content of the audio signal has been reduced, as can happen for example during recording, transmission or reproduction.

This volume, significant in dealing exclusively with BWE, discusses applications to music and speech and places particular emphasis on signal processing techniques.

• Presents an all-encompassing approach to BWE by covering theory, applications and algorithms
• Reviews important concepts in psychoacoustics, signal processing and loudspeaker theory
• Develops the theory and implementation of BWE applied to low-frequency sound reproduction, perceptually coded audio, speech and noise abatement
• Includes a BWE patent overview

Audio Bandwidth Extension pulls together recent developments in to a single volume and presents a coherent framework to the reader. Such an approach will have instant appeal to engineers, specialists, researchers and postgraduate students in the fields of audio, signal processing and speech.

• Language: English
• Publisher: Wiley
• Release date: Apr 8, 2005
• ISBN: 9780470858653

Erik Larsen

ERIK LARSEN is an eight year veteran of the U.S. Army, serving in a variety of roles that included a ranger infantryman as well as a recruiting NCO. Erik was born and raised in a small town in South Dakota, where he enlisted in the U.S. Army immediately after high school. He completed Infantry OSUT, the Basic Airborne Course, and the Ranger Indoctrination Program before being assigned to 1st Battalion, 75th Ranger Regiment. While at 1/75, he served in a variety of positions and deployed to both Iraq and Afghanistan on multiple occasions. After his fifth deployment, Erik volunteered for recruiting duty and was assigned to the Syracuse recruiting battalion as a recruiting NCO. While on recruiting duty, he ran a program specifically for those wanting to join the ranks of the 75th Ranger Regiment, as well as other SOF units, and developed a study guide for them that formed the basis for Ranger Knowledge. Erik is currently the owner of Blackside Concepts and is working towards his bachelors of science in business administration.

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