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System and method for speech extraction

A voice extraction and pitch technology, applied in voice analysis, instruments, etc., can solve the problem that the voice extraction method is not suitable for the system or device

Inactive Publication Date: 2017-09-12
UNIV OF MARYLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the previously described communication systems and medical devices include only one sensor (or some other limited number)
Therefore, known speech extraction methods are not suitable for use in these systems or devices without costly modifications

Method used

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  • System and method for speech extraction

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Embodiment Construction

[0027] The system and method for speech extraction processing are described in this article. In some embodiments, the speech extraction method described herein is part of a software-based method that automatically separates two signals (eg, two speech signals) that overlap each other. In some embodiments, the overall system in which the speech extraction method is embodied may be referred to as "separation system" or "separation technology." The separation system can have three different levels, for example: an analysis level, a synthesis level, and a clustering level. The analysis level and synthesis level are described in detail in this article. A detailed discussion of the clustering level can be found in U.S. Provisional Patent Application No. 61 / 406,318, filed on October 25, 2010, entitled "Sequential Grouping in Co-Channel Speech", the disclosure of which is fully incorporated by reference. Merged here. The analysis level, synthesis level, and clustering level are refe...

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Abstract

In some embodiments, a processor-readable medium stores code representing instructions for causing a processor to receive an input signal having a first component and a second component. An estimate of the first component of the input signal is calculated based on an estimate of the pitch of the first component of the input signal. An estimate of the input signal is calculated based on an estimate of the first component of the input signal and an estimate of the second component of the input signal. The estimator of the first component of the input signal is modified based on a scaling function to produce a reconstructed first component of the input signal. The scaling function is a function of at least one of the input signal, an estimate of the first component of the input signal, an estimate of the second component of the input signal, or a residual signal.

Description

[0001] Cross references to related applications [0002] This application claims priority to the U.S. Provisional Patent Application No. 61 / 299,776 filed on January 29, 2010 and entitled "Method to Separate Overlapping Speech Signals from a Speech Mixture for Use in a Segregation Algorithm"; the publication of the above application The content is incorporated here in its entirety by reference. [0003] This application relates to U.S. Patent Application No. 12 / 889,298 filed on September 23, 2010 under the title "Systems and Methods for Multiple Pitch Tracking". The above application requires that it be filed on September 23, 2009 under the title "System and Algorithm for Multiple Pitch Tracking in Adverse Environments" U.S. Provisional Patent Application No. 61 / 245,102; the disclosure of each of the above applications is incorporated herein by reference in its entirety. [0004] This application relates to U.S. Provisional Patent Application No. 61 / 406,318 filed on October 25, 2010, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0272G10L25/90
CPCG10L21/0272G10L2025/906G10L21/0308G10L19/09G10L19/008G10L2025/786
Inventor C·埃斯佩-威尔松S·威什诺博霍特拉
Owner UNIV OF MARYLAND