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通过IP网络传递语音(译文连载)
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作者 刘莹 《湖南通信技术》 1999年第3期42-44,共3页
关键词 IP网络 传递语音 语音网关 DSP软件
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开阳供电局综合布线系统的建设
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作者 宋洪刚 《贵州电力技术》 2004年第9期35-36,共2页
综合布线系统是大楼弱电系统数据和语音传递的基本通道。在布线系统的基础上,可以形成遍布整个大楼的电话网络、计算机网络、消防通信网、安全防范网和大楼设备管理网。可以说,布线系统是大楼现代化系统中最基础的组成部分,它的性能... 综合布线系统是大楼弱电系统数据和语音传递的基本通道。在布线系统的基础上,可以形成遍布整个大楼的电话网络、计算机网络、消防通信网、安全防范网和大楼设备管理网。可以说,布线系统是大楼现代化系统中最基础的组成部分,它的性能直接影响到现代化系统的性能和寿命。 展开更多
关键词 综合布线系统 计算机网络 电缆 语音传递 开阳供电局
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中国工商银行呼叫中心建设解决方案
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《通信世界》 2001年第20期32-32,共1页
关键词 中国工商银行 呼叫中心 客户服务系统 CTI接口 语音传递 信息化建设
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Push-To-Talk:移动通信业务的下一个增长点?
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作者 闫跃龙 《通讯世界》 2003年第5期54-55,共2页
关键词 PUSH-TO-TALK 移动通信 VOIP技术 会话发起协议 多媒体子系统 分组数据网络 即时语音传递
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ARMA Modelling for Whispered Speech
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作者 栗学丽 周卫东 《Journal of Measurement Science and Instrumentation》 CAS 2010年第3期300-303,共4页
The Autoregressive Moving Average (ARMA) model for whispered speech is proposed. with normal speech, whispered speech has no fundamental frequency because of the glottis being semi-opened and turbulent flow being cr... The Autoregressive Moving Average (ARMA) model for whispered speech is proposed. with normal speech, whispered speech has no fundamental frequency because of the glottis being semi-opened and turbulent flow being created, and formant shifting exists in the lower frequency region due to the narrowing of the tract in the false vocal fold regions and weak acoustic coupling with the aubglottal system. Analysis shows that the effect of the subglottal system is to introduce additional pole-zero pairs into the vocal tract transfer function. Theoretically, the method based on an ARMA process is superior to that based on an AR process in the spectral analysis of the whispered speech. Two methods, the least squared modified Yule-Walker likelihood estimate (LSMY) algorithm and the Frequency-Domain Steiglitz-Mcbide (FDSM) algorithm, are applied to the ARMA mfldel for the whispered speech. The performance evaluation shows that the ARMA model is much more appropriate for representing the whispered speech than the AR model, and the FDSM algorithm provides a name acorate estimation of the whispered speech spectral envelope than the LSMY algorithm with higher conputational complexity. 展开更多
关键词 ARMA model AR model whispered speech LSMY
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