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Class quantization for distributed speech recognition

A speech and non-speech technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of increasing the amount of information displayed, increasing the bandwidth of sending information, etc., and achieve the effect of improving communication quality and network performance

Inactive Publication Date: 2011-09-21
INT BUSINESS MASCH CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately however, the various "classes" proposed to extend the standard require an increase in the amount of information represented and increased bandwidth for sending class information

Method used

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  • Class quantization for distributed speech recognition
  • Class quantization for distributed speech recognition
  • Class quantization for distributed speech recognition

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Experimental program
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Embodiment Construction

[0022] According to a preferred embodiment, the present invention advantageously overcomes the problems of the prior art by effectively reducing the number of bits used in pitch quantization, as will be discussed in detail below.

[0023] I. Overview

[0024] figure 1 is a block diagram illustrating a network for distributed speech recognition (DSR) according to a preferred embodiment of the present invention. figure 1 A web server or wireless service provider 102 is shown operating on a network 104 connecting the server / wireless service provider 102 with clients 106 and 108 . In one embodiment of the invention, figure 1 A network computer system is shown that includes a server 102, a network 104, and client computers 106-108. In a first embodiment, the network 104 is a circuit-switched network, such as the Public Service Telephone Network (PSTN). Optionally, network 104 is a packet switched network. A packet-switched network is a Wide Area Network (WAN), such as the glob...

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PUM

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Abstract

A system, method and computer readable medium for quantizing class information and pitch information of audio is disclosed. The method on an information processing system includes receiving audio and capturing a frame of the audio. The method further includes determining a pitch of the frame and calculating a codeword representing the pitch of the frame, wherein a first codeword value indicates an indefinite pitch. The method further includes determining a class of the frame, wherein the class is any one of at least two classes indicating an indefinite pitch and at least one class indicating a definite pitch. The method further includes calculating a codeword representing the class of the frame, wherein the codeword length is the maximum of the minimum number of bits required to representthe at least two classes and the minimum number of bits required to represent the at least one class.

Description

technical field [0001] The present invention generally relates to the field of distributed speech recognition systems, in particular to distributed speech recognition for narrow bandwidth communication and wireless communication. Background technique [0002] With the advent of pagers and cellular phones, the wireless service industry has grown into a multi-billion dollar industry. A substantial amount of revenue for wireless service providers (WSPs) comes from subscriptions. Likewise, the ability of a WSP to run a successful network depends on the quality of service provided to subscribers on a network with limited bandwidth. To this end, WSPs are constantly looking for ways to reduce the amount of information transmitted over the network while maintaining a high quality of service to subscribers. [0003] Recently, speech recognition has found success within the wireless services industry. Speech recognition is used in various applications and services. For example, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L11/04G10LG10L11/00G10L15/28G10L21/00G10L25/90G10L25/93
CPCG10L2025/935G10L15/30G10L25/90G10L25/93G10L25/72G10L19/032
Inventor 滕卡斯·V.·拉马巴得拉恩亚历山大·索里恩
Owner INT BUSINESS MASCH CORP