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Further Studies of a FFT-Based Auditory Spectrum With Application in Audio Classification

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Executive Summary

In this paper, the noise-robustness of a recently proposed Fast Fourier Transform (FFT)-based Auditory Spectrum (FFT-AS) is further evaluated through speech/music/noise classification experiments wherein mismatched test cases are considered. The features obtained from the FFT-AS show more robust performance as compared to the conventional Mel-Frequency Cepstral Coefficient (MFCC) features. To further explore the FFT-AS from a perspective of practical audio classification, an audio classification algorithm using features derived from the FFT-AS is implemented on the floating-point DSP platform TMS320C6713.

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