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 Title: |
US7505902:
Discrimination of components of audio signals based on multiscale spectro-temporal modulations
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Mesgarani, Nima; College Park, MD, United States of America
Shamma, Shihab A.; Washington, DC, United States of America
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| Assignee: |
University of Maryland, College Park, MD, United States of America
other patents from UNIVERSITY OF MARYLAND (599690) (approx. 282)
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| Published / Filed: |
2009-03-17
/ 2005-07-28
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| Application Number: |
US2005000190933
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| IPC Code: |
Advanced:
A61B 5/00;
G10L 11/00;
G10L 11/02;
G10L 15/08;
G10L 21/06;
Core:
G10L 15/00;
G10L 21/00;
more...
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| ECLA Code: |
G10L21/02A6;
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| U.S. Class: |
704/231;
704/205;
704/206;
704/233;
704/235;
600/301;
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| Field of Search: |
704/200-200.1,204,205-206,207,229,231-257,220-228,500-504
381/110
600/300-301,372,379,382-383
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| Government Interest: |
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
The invention described herein was developed through research funded under Federal contract. The U.S. Government has certain rights to the invention.
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| Priority Number: |
| 2005-07-28 |
US2005000190933 |
| 2004-07-28 |
US2004000591891P |
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| Abstract: |
An audio signal (172) representative of an acoustic signal is provided to an auditory model (105). The auditory model (105) produces a high-dimensional feature set based on physiological responses, as simulated by the auditory model (105), to the acoustic signal. A multidimensional analyzer (106) orthogonalizes and truncates the feature set based on contributions by components of the orthogonal set to a cortical representation of the acoustic signal. The truncated feature set is then provided to classifier (108), where a predetermined sound is discriminated from the acoustic signal.
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| Attorney, Agent or Firm: |
Rosenberg, Klein & Lee ;
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| Primary / Asst. Examiners: |
Smits, Talivaldis I; Kovacek, David
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Parent Case: |
RELATED APPLICATION DATA
This application is based on Provisional Patent Application Ser. No. 60/591,891, filed 28 Jul. 2004.
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| Family: |
Show 2 known family members
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First Claim:
Show all 20 claims |
1. A method for discriminating sounds in an audio signal comprising the steps of: forming an auditory spectrogram from the audio signal, said auditory spectrogram characterizing a physiological response to sound represented by the audio signal; establishing a plurality of modulation-selective filters tuned to a range of frequency and temporal modulations of said auditory spectrogram; filtering said auditory spectrogram into a plurality of multidimensional, time-varying cortical response signals, each of said cortical response signals indicative of the frequency modulations of said auditory spectrogram over a corresponding predetermined range of scales and of the temporal modulations of said auditory spectrogram over a corresponding predetermined range of rates; decomposing said cortical response signals into orthogonal multidimensional component signals; said cortical response signals existing in a cubic representation of rate, scale, and frequency components prior to the step of decompositiom; said orthogonal multidimensional component signals including multiple scales of time and spectral resolution; truncating said orthogonal multidimensional component signals; and classifying said truncated component signals to discriminate therefrom a signal corresponding to a predetermined sound.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Foreign References: |
None
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| Other References: |
Fineberg et al., “Detection and Classification of Multicomponent Signals”, 1991 Conference Record of the Twenty-Fifth Asilomar Conference on Signals, Systems and Computers, Nov. 4-6, 1991, vol. 2, 1093-1097.
De Lathauwer et al., “On the Best Rank-1 and Rank—(R1, R2, . . . RN) Approximation of Higher Order Tensors”, Siam J. of Matrix Anal. and App., vol. 21, No. 4, 2000.
Kingsbury et al., “Robust Speech Recognition in Noisy Environments: The 2001 IBM Spine Evaluation System”, Int'l Conf. on Acoustic, Speech and Signal Proc., vol. I, Orlando, Fla., May 2002.
Scheirer, et al., “Construction and Evaluation of a Robust Multifeature Speech/Music Discriminator”, Int'l Conf. on Acoustic, Speech and Signal Proc., Munich, Germany, 1997.
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| Continuity Data: |
| Application Number | Filed | Notes |
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US2005000190933 | 2005-07-28 | is a
related to the prior publication |
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US20060025989A1 issued 2006-02-02 Discrimination of components of audio signals based on multiscale spectro-temporal modulations
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US2005000190933 | 2005-07-28 | is a
non-provisional of provisional |
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US2004000591891P
| 2004-07-28 |
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