发明名称 |
Speech quality assessment with noise masking |
摘要 |
A method and apparatus for assessing the perceptual quality of stereo speech signals transmitted via a telecommunications network and recorded acoustically from an acoustic terminal device in which a mono reference signal comprising a single channel is aligned with a degraded stereo signal comprising a left and a right channel; a delay between each channel of said degraded signal and said reference signal is estimated; a noise masking indicator in dependence upon said estimated delays is generated; the level of the stereo signals is adjusted in dependence upon said noise masking indicator; a set of perceptually relevant parameters for each of said reference and degraded signals are generated; the perceptually relevant parameters of the reference signal with the perceptually relevant parameters of the degraded signal to generate a disturbance profile are compared; and a speech quality prediction is generated in dependence upon said disturbance profile.
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申请公布号 |
US7412375(B2) |
申请公布日期 |
2008.08.12 |
申请号 |
US20040874156 |
申请日期 |
2004.06.22 |
申请人 |
PSYTECHNICS LIMITED |
发明人 |
GOLDSTEIN TOM;BARRETT PAUL ALEXANDER;RIX ANTONY WILLIAM |
分类号 |
G10L21/02;G10L19/00;G10L25/69;H04M3/22;H04R29/00 |
主分类号 |
G10L21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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