A constant percentage bandwidth transform for acoustic signal processing
Abstract
A constant percentage bandwidth transform for acoustic signal processing is presented. Such a transform was shown to emulate behavior found in the human auditory system, making possible both the imitation or peripheral auditory analysis, and processing which was more closely linked to perception than is possible using constant bandwidth analysis. A synthesis transformation is developed to enable such processing. Various properties of the transform pair are derived, and a filterbank analogy is used to create a basis for intuitive understanding of the transform's operation and properties. The effects of spectral domain modification are described and shown to be related to the properties of the analysis window function. Principles governing discrete implementation of the transform pair are discussed, and relationships are formalized which specify the sampling of the spectral domain.
 Publication:

Ph.D. Thesis
 Pub Date:
 1979
 Bibcode:
 1979PhDT........15Y
 Keywords:

 Acoustics;
 Bandwidth;
 Signal Processing;
 Transformations (Mathematics);
 Auditory Perception;
 Spectrograms;
 Spectrum Analysis;
 Speech;
 Communications and Radar