用于电话和其它语音应用的测试信号 |
ITU-T P.501建议书说明适用于电话和其它话音应用的若干方面的测试信号。该建议书给出了极为广泛的测试信号,以复杂度较低的测试信号为着手点,然后是更为复杂的测试信号,包括诸多典型语音参数。除诸如正弦波或噪声的技术信号外,还阐述了更多语音类信号。ITU-T P.501建议书阐述每种测试信号的信号构建原理,并展示了功率密度频谱、概率密度函数或整形滤波器响应等特性。ITU-T P.501建议书概要介绍测试信号的典型应用领域,从而成为一般性应用导则。然而,应在涉及特定应用领域的相关建议书中查阅有关应用的详细说明。附件A提出测量终端偶合损耗(TCL)的两种测试信号[带有较低波峰因子的伪噪声序列(pn序列)和对数分布多正弦波]。 附件B说明在结合使用客观语音质量评估方法时采用的语音文档和噪声序列。这一语音材料并不取代ITU-T P系列建议书增补23提出的语音材料。附录I具体说明第7.3段所述语音信号的处理。 本建议书含一份电子附件,其中含有建议书内提到的免费获取测试信号集。 |
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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P Suppl. 10 (11/1988)
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Considerations relating to transmission characteristics for analogue handset telephones
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In force
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-
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here
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here
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P Suppl. 16 (11/1988)
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Guidelines for placement of microphones and loudspeakers in telephone conference rooms and for group audio terminals (GATs)
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In force
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-
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here
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here
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P Suppl. 20 (03/1993)
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Examples of measurements of handset receive-frequency responses: dependence on earcap leakage losses
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In force
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-
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here
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here
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P Suppl. 23 (02/1998)
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ITU-T coded-speech database
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In force
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here
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here
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here
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P Suppl. 24 (10/2005)
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Parameters describing the interaction with spoken dialogue systems
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In force
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here
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here
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here
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P Suppl. 25 (01/2011)
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Parameters describing the interaction with multimodal dialogue systems
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In force
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here
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here
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here
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P Suppl. 26 (09/2017)
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Scenarios for the subjective evaluation of audio and audiovisual multiparty telemeeting quality
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In force
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here
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here
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here
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P Suppl. 28 (09/2020)
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Considerations for the development of new QoS and QoE related objective models to be embedded in Recommendations prepared by ITU-T Study Group 12
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In force
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here
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here
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here
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Title |
Approved on |
Download |
Addition to Section 2.3 of the Handbook on Telephonometry
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2000
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here
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Addition to Section 3 of the Handbook on Telephonometry
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2000
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here
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Additions to the Handbook on Telephonometry
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1999
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here
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Telephonometry
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1992
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here
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