Invention Application
WO2013022914A1 SYSTEM AND METHOD FOR ANALYZING AUDIO INFORMATION TO DETERMINE PITCH AND/OR FRACTIONAL CHIRP RATE 审中-公开
用于分析音频信息以确定琵琶和/或分数P率的系统和方法

SYSTEM AND METHOD FOR ANALYZING AUDIO INFORMATION TO DETERMINE PITCH AND/OR FRACTIONAL CHIRP RATE
Abstract:
A system and method may be configured to analyze audio information. The system and method may include determining for an audio signal, an estimated pitch of a sound represented in the audio signal, an estimated chirp rate (or fractional chirp rate) of a sound represented in the audio signal, and/or other parameters of sound(s) represented in the audio signal. The one or more parameters may be determined through analysis of transformed audio information derived from the audio signal {e.g., through Fourier Transform, Fast Fourier Transform, Short Time Fourier Transform, Spectral Motion Transform, and/or other transforms). Statistical analysis may be implemented to determine metrics related to the likelihood that a sound represented in the audio signal has a pitch and/or chirp rate (or fractional chirp rate). Such metrics may be implemented to determine an estimated pitch and/or fractional chirp rate.
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