环绕声声音质量的主观评价方法

随着高清频道的增多,一些电视台具备了多声道环绕声节目的制作能力,并积累了一定的节目。但由于环绕声节目的拾取、制作还处于探索阶段,而传输中应用的信源编码又会对声音质量带来一些损伤,使得有必要对声音质量进行评价。笔者以曾经进行的数种音频编解码算法的主观评价所积累的经验为基础,对环绕声声音质量的主观评价方法进行了探讨。

Subjective Evaluation of Surround Sound Quality

There are more and more multi-channel surround sound programs with increase of HDTV channels, so appropriate method to evaluate program quality is necessary. Based on accumulated experience of subjective evaluation of audio codec algorithms, this paper discusses subjective evaluation method for surround sound quality and provides suggestions about subjective evaluation on directly collected recording program quality and source program’s damage produced through encoding and decoding system.