公开(公告)号：US20150039303A1

公开(公告)日：2015-02-05

申请号：US14314182

申请日：2014-06-25

Applicant: Wolfson Microelectronics plc

Inventor： John Paul Lesso ,  Robert James Hatfield

IPC: G10L15/20

CPC classification number: G10L15/20 ,  G10L15/28 ,  G10L17/24 ,  G10L21/0208 ,  G10L2015/088

Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.

Abstract translation: 语音识别系统包括：用于接收来自至少一个麦克风的输入信号的输入; 第一缓冲器，用于存储输入信号; 降噪块，用于接收输入信号并产生降噪输入信号; 语音识别引擎，用于接收从第一缓冲器输出的输入信号或来自降噪块的降噪输入信号; 以及选择电路，用于将从第一缓冲器输出的输入信号或降噪输入信号从噪声降低块引导到语音识别引擎。