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
- Patent Title: SYSTEM AND METHOD FOR ANALYZING AUDIO INFORMATION TO DETERMINE PITCH AND/OR FRACTIONAL CHIRP RATE
- Patent Title (中): 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
-
Application No.: PCT/US2012/049901Application Date: 2012-08-08
-
Publication No.: WO2013022914A1Publication Date: 2013-02-14
- Inventor: BRADLEY, David, C. , FISHER, Nicholas, K. , HILTON, Robert, N. , GATEAU, Rodney , ROOS, Derrick, R.
- Applicant: THE INTELLISIS CORPORATION , BRADLEY, David, C. , FISHER, Nicholas, K. , HILTON, Robert, N. , GATEAU, Rodney , ROOS, Derrick, R.
- Applicant Address: 10350 Science Center Drive Suite 140 San Diego, CA 92121 US
- Assignee: THE INTELLISIS CORPORATION,BRADLEY, David, C.,FISHER, Nicholas, K.,HILTON, Robert, N.,GATEAU, Rodney,ROOS, Derrick, R.
- Current Assignee: THE INTELLISIS CORPORATION,BRADLEY, David, C.,FISHER, Nicholas, K.,HILTON, Robert, N.,GATEAU, Rodney,ROOS, Derrick, R.
- Current Assignee Address: 10350 Science Center Drive Suite 140 San Diego, CA 92121 US
- Agency: ESPLIN, D., Benjamin et al.
- Priority: US13/205,455 20110808
- Main IPC: G01L19/00
- IPC: G01L19/00
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.
Information query