The dynamic redistribution of spectral energies for upmixing and re-animation of recorded audio

Christopher J KEYES*

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

This paper details a novel approach to upmixing any n channels of audio to any arbitrary n+ channels of audio using frequency-domain processing to dynamically redistribute spectral energies across however many channels of audio are available. Although primarily an upmixing technique, the process may also help the recorded audio regain the sense of 'liveliness' that one encounters in concerts of acoustic music, partially mimicking the effects of sound spectra being redistributed throughout a hall due to the dynamically changing radiation patterns of the instruments, and the movements of the instruments themselves, during performance and recording. Preliminary listening tests reveal listeners prefer this technique 3 to 1 over a more standard upmixing technique.

Original languageEnglish
Title of host publication133rd Audio Engineering Society Convention 2012, AES 2012
Pages637-645
Number of pages9
Volume2
Publication statusPublished - 2012
Event133rd Audio Engineering Society Convention, AES 2012 - San Francisco, CA, United States
Duration: 26 Oct 201229 Oct 2012

Conference

Conference133rd Audio Engineering Society Convention, AES 2012
Country/TerritoryUnited States
CitySan Francisco, CA
Period26/10/1229/10/12

Scopus Subject Areas

  • Modelling and Simulation
  • Acoustics and Ultrasonics

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