Auditory eigenfunction systems and methods

摘要

An “auditory eigenfunction” approach is provided for auditory language design, implementation, and rendering optimized for human auditory perception. The auditory eigenfunctions employed approximate solutions to an eigenfunction equation representing a model of human hearing, wherein the model comprises a frequency domain bandpass operation with a approximating the frequency range of human hearing and a time-limiting operation in the time domain approximating the time duration correlation window of human hearing. The method can be used to implement entirely new auditory languages, or modification to existing auditory languages, which are in various ways performance optimized for human auditory perception, either with or without the constraints of human vocal-tract rendering. The method can also be used, for example, to implement traditional speech synthesis, and can be useful in speech synthesis involving rapid phoneme production. The method could also be used to implement various other types of user machine interfaces.

主权项

1. A method for designing, implementing, or rendering an auditory language optimized for human auditory perception for use in conjunction with human hearing, the method comprising:
approximating an eigenfunction equation representing a model of human hearing, wherein the model comprises a bandpass operation approximating the frequency range of human hearing and a time-limiting operation approximating the time duration correlation window of human hearing, calculating the approximation to each of a plurality of eigenfunctions associated with at least one aspect of the eigenfunction equation; and storing the approximation to each of the plurality of eigenfunctions for retrieval and use at a later time, wherein amplitude of at least some of the plurality of approximated eigenfunctions are arranged to be modulated over time to produce associated modulated signals, wherein the modulated signals are summed to produce a composite synthesized signal, and wherein the composite synthesized signal is rendered as at least one audio signal representing audio information to serve as a synthesized substitute for at least one phoneme in an auditory language.