响度与响度评定值在语音交互测试中的差别与应用

The Difference and Application of Loudness and Loudness Rating in Voice Interaction Test

响度是人耳接收到声音信号后的一种感觉量,它并非一个物理量,与人类的听觉特征和主观感受直接相关,一般用单位宋(Sone)来度量。响度评定值不是直接由接收端收到的实际声音测试信号计算出响度,而是采用插入到中间参考语音通道和待测语音通道、与频率无关的传输损耗值来表示。

Loudness is a sense of the human ear receiving a sound signal.It is not a physical quantity,and directly related to human auditory haracteristics and subjective feelings.It is generally measured by the unit Sone.The loudness rating is not derived from the sound signal received at the receiving end,but is expressed by a transmission loss value that is inserted into the intermediate reference voice channel and the voice channel to be measured and is independent of frequency.