Time-domain scrambling of audio signals

Version 1.1.0.0 (165 KB) von Dan Ellis
Scramble audio signals by shuffling short-time windows
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Aktualisiert 15. Nov 2010

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These routines scramble an audio file by moving around short, overlapping windows within a local window. They can be used to create new versions of existing recordings that preserve the spectral content over longer time scales, but remove structure at shorter timescales. This can be useful e.g. for making speech unintelligible.

Routines are also included to shuffle Gammatone subbands independently, for further scrambling.

Code is also available from http://www.ee.columbia.edu/~dpwe/resources/matlab/scramble/

Includes Gammatone / ERB filtering routines lightly adapted from Malcolm Slaney's Auditory Toolbox,
http://cobweb.ecn.purdue.edu/~malcolm/interval/1998-010/

Zitieren als

Dan Ellis (2024). Time-domain scrambling of audio signals (https://www.mathworks.com/matlabcentral/fileexchange/29396-time-domain-scrambling-of-audio-signals), MATLAB Central File Exchange. Abgerufen.

Kompatibilität der MATLAB-Version
Erstellt mit R2010b
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Version Veröffentlicht Versionshinweise
1.1.0.0

Updated with improved (refactored) code, include acknowledgment of the use of Malcolm Slaney's code as a starting point.
1.0.0.0