动态水景声喜好度实验研究

采集不同地域环境中的动态水景声景观数据,采用里克特5级量表,通过实验室实验研究水景声喜好度与声音物理特征、水景形态与环境视觉喜好度和被试等因素的关系。分析发现:单听水景声音时,声喜好度与水景声音A声级显著负相关(r_p=-0.981,p<0.01),与瞬时变率显著正相关(r_p=0.720,p<0.05)。当谱质心与A声级和瞬时变率显著相关时,谱质心与声喜好度也显著负相关(r_p=-0.867,p<0.01);放映水景形态和环境默片,评价其视觉喜好度;将水景声音分别与形态、环境视频同时播放再评价其声喜好度,发现视觉喜好度较高的水景形态和环境能够明显提高大流速流量水景的声喜好度,视觉喜好度较低的水景形态和环境反而降低了小流速流量水景的声喜好度;男女生对水景声喜好度的评价有显著差异,本地学生对黑虎泉声喜好度评价比非本地学生高。因此,水景声喜好度受其声音物理指标、形态和环境视觉因素及被试自身等因素的影响。 

Experimental research on sound preferences for dynamic waterscapes

We collected the soundscape data of dynamic waterscape sounds implemented in different geographical environments, and studied the relationships between sound pleasantness and the influencing factors by laboratory test,using 5-point Liket scale. These factors include physical characteristics, visual pleasantness of waterscape morphologies and environments and examinees. The results show that without visual influences, a negative relationship was found between pleasantness and LAeq(r_p=-0.981, p<0.01). And there was a positive relationship between pleasantness and temporal variability(r_p=0.720,p<0.05). When the spectral centroid had relationship with LAeq and temporal variability, a negative relationship was also found between pleasantness and spectral centroid(r_p=-0.867, p<0.01).Playing the waterscape morphologies and environment silent films, the visual pleasantness was evaluated. Then playing waterscape sounds combined with the visual impacts, it was found that the waterscapes and environments with higher visual pleasantness had improved the sound pleasantness of the loud steady-state waterscapes, on the contrary, those with lower visual pleasantness had reduced the sound pleasantness of soft variable waterscapes. There were certain gender and regional differences. The sound pleasantness score of Jinan Heihu spring evaluated by local residents was higher than the others. So, the waterscape sound pleasantness was influenced by the physical characteristics, visual pleasantness of waterscape and environments and examinees.