论文部分内容阅读
随着电话通讯的广泛使用,对电话传输质量就有更高的要求.目前电话传输质量评定中普遍使用参考当量,并发展响度评定值的方法.在测试中,需要有能够代表某种语言的标准试验句作为测试材料.许多国家都已经设计出本国语言的试验句,井将其设计研究结果提交给国际电报电话咨询委员会(CCITT).但是,过去还没有汉语的试验句.本文所讨论的试验句设计,就是根据CCITT的要求而进行研究的. 这一研究结果,除于1978年10月CCITT实验工作会议上宣读,列入会议文件外,并于1980年8月,经邮电部组织的电话传输质量测试系统国家鉴定,选定为我国话机响度测量正式试验句.
With the extensive use of telephone communication, the quality of telephone transmission has higher requirements.At present, telephone reference quality is widely used in the assessment of transmission quality and the development of loudness rating method.In the test, you need to be able to represent a certain language Standard Test Sentences as Test Materials Many countries have designed test sentences in their own languages and have submitted their design findings to the CCITT but in the past no test sentences for Chinese have been found. The design of the test sentence is based on the requirements of the CCITT and the results of the study, except the one read out at the CCITT Experimental Working Conference in October 1978, included in the conference document, and organized by the Ministry of Posts and Telecommunications in August 1980 Telephone transmission quality testing system for national identification, selected as the official test sentence loudness measurement in China.