SPEECH PROCESSING WITH SOURCE LOCATION ESTIMATION USING SIGNALS FROM TWO OR MORE MICROPHONES
First Claim
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1. A computer speech processing system, comprising:
- one or more voice segment detection modules configured to extract first and second voice segments from first and second microphone signals originating from first and second microphones, wherein the first and second voice segments correspond to a voice sound originating from a common source;
a source location estimation module configured to produce an estimated source location based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments; and
a decision module configured to determine whether the voice segment is desired or undesired based on the estimated source location.
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Abstract
Computer implemented speech processing is disclosed. First and second voice segments are extracted from first and second microphone signals originating from first and second microphones. The first and second voice segments correspond to a voice sound originating from a common source. An estimated source location is generated based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments. A determination whether the voice segment is desired or undesired may be made based on the estimated source location.
153 Citations
24 Claims
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1. A computer speech processing system, comprising:
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one or more voice segment detection modules configured to extract first and second voice segments from first and second microphone signals originating from first and second microphones, wherein the first and second voice segments correspond to a voice sound originating from a common source; a source location estimation module configured to produce an estimated source location based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments; and a decision module configured to determine whether the voice segment is desired or undesired based on the estimated source location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21)
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12. In a computer voice processing system having a processing unit and a memory unit, and first and second microphones coupled to the processing unit a computer implemented method for voice recognition, the method comprising:
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a) extracting first and second voice segments from first and second microphone signals originating from the first and second microphones, wherein the first and second voice segments correspond to a voice sound originating from a common source; b) producing an estimated source location based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments; and c) determining whether the first voice segment is desired or undesired based on the estimated source location. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 22)
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23. A computer apparatus for implementing computer voice recognition, the apparatus comprising:
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a) means for extracting first and second voice segments from first and second microphone signals originating from the first and second microphones, wherein the first and second voice segments correspond to a voice sound originating from a common source; b) means for producing an estimated source location based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments; and c) means for determining whether the first voice segment is desired or undesired based on the estimated source location.
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24. A computer readable storage medium, having embodied therein computer readable instructions executable by a computer speech processing apparatus having a processing unit and a memory unit, the computer readable instructions being configured to implement a speech processing method upon execution by the processor, the method comprising:
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a) extracting first and second voice segments from first and second microphone signals originating from the first and second microphones, wherein the first and second voice segments correspond to a voice sound originating from a common source; b) producing an estimated source location based on a relative energy of the first and second voice segments and/or a correlation of the first and second voice segments; and c) determining whether the first voice segment is desired or undesired based on the estimated source location.
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Specification