音乐排练厅声环境调查与声学指标优选研究

Investigation of acoustic environments of music rehearsal halls and optimization of their main acoustic criteria

音乐排练厅具有独特的声环境需求,目前与之相关的研究与标准较为缺乏。为确定音乐排练厅的主要声学指标及其优选范围,进行了针对排练厅主观声学指标重要性程度的问卷调查,以此为基础,得到五个排练厅开展主观与客观声环境的主观声学指标评价结果与客观声学指标实测值,通过主客观指标相关性分析,确定了排练厅的主要客观声学指标。通过实验室优选实验,确定了主要客观声学指标的优选范围。研究发现,音乐排练厅的主要主观声学指标为整体感、融合感、平衡感、明晰度,主要客观声学指标为早期舞台支持度与混响时间,早期舞台支持度优选范围为-10~-8 dB,混响时间优选范围为0.8~1.2 s。

Music rehearsal halls have unique acoustic environment needs,and there is a lack of research and standards related to them.In order to determine the main acoustic indicators of music rehearsal halls and their preferred range,a questionnaire survey on the importance of subjective acoustic indicators of rehearsal halls was carried out,and on this base,the evaluation results of the subjective acoustic indicators of five rehearsal halls were obtained together with the measured values of the objective acoustic indicators,and through the correlation analysis of the subjective and objective indicators,the main objective acoustic indicators of rehearsal halls were determined.Through laboratory optimization experiments,the optimal range of the main objective acoustic indicators was determined.It is found that the main subjective acoustic indicators of the music rehearsal hall are the sense of wholeness,integration,balance and clarity,the main objective acoustic indicators are early stage support and reverberation time,the optimal range of early stage support is-10~-8 dB,and the optimal range of reverberation time is 0.8~1.2 s.