US 8,478,585 B2 · Identifying features in a portion of a signal representing speech

Abstract

Methods, systems, and machine-readable media are disclosed for processing a signal representing speech. According to one embodiment, processing a signal representing speech can comprise receiving a region of the signal representing speech. The region can comprise a portion of a frame of the signal representing speech classified as a voiced frame. The region can be marked based on one or more pitch estimates for the region. A cord can be identified within the region based on occurrence of one or more events within the region of the signal. For example, the one or more events can comprise one or more glottal pulses. In such cases, cord can begin with onset of a first glottal pulse and extend to a point prior to an onset of a second glottal pulse. The cord may exclude a portion of the region of the signal prior to the onset of the second glottal pulse.

Claims36

Dependent claims

A method of processing a signal representing speech, the method comprising:

receiving a region of the signal representing speech, wherein the region comprises a portion of a frame of the signal representing speech classified as a voiced frame and wherein the region is marked based on one or more pitch estimates for the region;
identifying a cord within the region of the signal based on occurrence of one or more events within the region of the signal, wherein the one or more events comprise one or more glottal pulses and the cord begins with onset of a first glottal pulse and extends to a point prior to an onset of a second glottal pulse but excludes a portion of the region of the signal prior to the onset of the second glottal pulse;
and
processing the cord to perform one or more additional functions related to the signal representing speech.

1 more element

A system comprising:

a processor;
and
a memory coupled with and readable by the processor and having stored therein a sequence of instructions which, when executed by the processor, cause the processor to process a signal representing speech by:
receiving a region of the signal representing speech, wherein the region comprises a portion of a frame of the signal representing speech classified as a voiced frame and wherein the region is marked based on one or more pitch estimates for the region;
identifying a cord within the region of the signal based on occurrence of one or more events within the region of the signal, wherein the one or more events comprise one or more glottal pulses and the cord begins with onset of a first glottal pulse and extends to a point prior to an onset of a second glottal pulse but excludes a portion of the region of the signal prior to the onset of the second glottal pulse;
and
processing the cord to perform one or more additional functions related to the signal representing speech.

4 more elements

A computer-readable memory device having stored therein a sequence of instructions which, when executed by a processor, cause the processor to process a signal representing speech by:

receiving a region of the signal representing speech, wherein the region comprises a portion of a frame of the signal representing speech classified as a voiced frame and wherein the region is marked based on one or more pitch estimates for the region;
identifying a cord within the region of the signal based on occurrence of one or more events within the region of the signal, wherein the one or more events comprise one or more glottal pulses and the cord begins with onset of a first glottal pulse and extends to a point prior to an onset of a second glottal pulse but excludes a portion of the region of the signal prior to the onset of the second glottal pulse;
and
processing the cord to perform one or more additional functions related to the signal representing speech.

1 more element

Dependencies are inferred from the claim text.

Identifying features in a portion of a signal representing speech

Life of this patent

Identifying features in a portion of a signal representing speech

Life of this patent

Abstract

Claims36