小型扬声器感知低音的主客观评价分析

Subjective and Objective Analysis on Perceived Bass of Small Speakers

针对小型扬声器,通过语义调查分析得到浑厚感、厚实度和力度感等适合用来评价其低音听感的主观评价术语,并依据音源制作规范和主观评价实验确定适合用来做低音听感评价的音源素材。进而对5只尺寸不同的小型扬声器进行低音听感主观评价实验,了解现阶段小型扬声器低音放音的现状。最后对其进行客观参数测量以及主客观参数关联性分析。结果表明:小型扬声器的前沿瞬态时间与其低音感知的各项主观评价参数相关性较大,频响平滑度参数也有一定关联。

In this paper, the anthor uses semantic analysis and investigation to find appropriate expressions for small speakers＇ subjective evaluation. Then based on audio production norms and subjective evaluation experiments, the appropriate source material for evaluation was selected. In order to understand the current situation of the bass playback on small speakers, five different sizes of small speakers were evaluated. Finally, the author uses an objective parameter measurements and correlation analysis of subjective and objective parameters for small speakers. The results showed that a small speaker＇s transient time had strong correlation with subjective evaluation, and frequency response smoothness was also relevant.