This is the personal website of John Usher.


John Usher was born and bred in Devon, England.

He holds a B.Eng. degree in Electro-Acoustics from the University of Salford and in 2006 received his Ph.D. from McGill University, where he was supervised by Dr. W.L. Martens; Prof. W. Woszczyk; Dr. J. Benesty and Prof. A. Bregman.

His Ph.D. thesis was on the theoretical development and subjective evaluation of a new ambiance extraction upmixer: the system he designed allows you to play stereo audio on a “surround sound” loudspeaker system.

The upmixer algorithm was further developed for multichannel cinema audio and is now part of Dolby Atmos (patent #8,335,330).


He has conducted research at the acoustics department of Bang and Olufsen, the DSP group at Philips Nat Lab, and has undertaken research residencies at the Banff Centre.


From 2006-2015 he was chief system architect at Personics Labs (AKA Hearium), where he worked on a new earphone for augmented reality, music listening and voice communications: it was the worlds first smart consumer earphone.


He is now working on a new loudspeaker project incorporating a microphone pickup system for voice control and automatic acoustic calibration:




Contents of


    •    Publications

    •   Patents

    •    Linked-in

    •    CV

    •    Upmixer

    •    PhD thesis

    •    My music