基于心理声学的VR音频舒适度的主观评测和客观量化
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摘要
VR作为一种新兴的多媒体方式,通过近几年的发展,在硬件方面趋于成熟,但是对VR内容的评价依旧处于探索阶段,尤其是对VR音频舒适度的研究基本空白,缺乏参照标准。本文结合了VR音频的特点,在心理声学理论的基础上,通过增添移动度来量化VR音频样本,并组织实验者对样本的舒适度展开主观评测,利用回归分析找到主观评测和客观量化数据之间的关系。本文介绍了VR音频各项心理声学参数的计算方式,主观测试实验过程,并对实验结果进行分析,得到声品质中各个参量与VR音频舒适度之间的联系,对VR音频内容的创作起到一定的指导作用。
As an emerging multimedia approach,VR has made great progress in terms of hardware through the development in recent years. However,the evaluation of VR content is still in the exploratory stage,especially the research on VR audio comfort is basically blank and lacks reference standards. In this paper,the characteristics of VR audio are combined. Based on the psychoacoustics theory,VR audio samples are quantified by the mobility,and the experimenter is organized to carry out subjective evaluation on the comfort of the samples,and the relationship between subjective evaluation and objective quantitative data is found through regression analysis. This paper introduces the calculation method of each psychoacoustic parameter of VR audio,subjective test the experimental process,and analyzes the experimental results to obtain the connection between each parameter in the sound quality and the audio comfort of VR,which plays a guiding role in the creation of VR audio content.
As an emerging multimedia approach,VR has made great progress in terms of hardware through the development in recent years. However,the evaluation of VR content is still in the exploratory stage,especially the research on VR audio comfort is basically blank and lacks reference standards. In this paper,the characteristics of VR audio are combined. Based on the psychoacoustics theory,VR audio samples are quantified by the mobility,and the experimenter is organized to carry out subjective evaluation on the comfort of the samples,and the relationship between subjective evaluation and objective quantitative data is found through regression analysis. This paper introduces the calculation method of each psychoacoustic parameter of VR audio,subjective test the experimental process,and analyzes the experimental results to obtain the connection between each parameter in the sound quality and the audio comfort of VR,which plays a guiding role in the creation of VR audio content.
引文
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[2]伍先俊,李志明.稳态响度听觉原理及A计权声级评价的缺点[J].电声技术,2002(12):68-70.
[3]ZWICKER E,FASTL H,WIDMANN U,et al.Program for calculating loudness according to DIN45631(ISO532B)[J].Journal of the Acoustical Society of Japan,1990,12(1):39-42.
[4]焦中兴.心理声学参量算法和编程实现[D].武汉:华中科技大学,2011.
[5]周祥平.声音质量的评价[J].视听技术,2000(6):44-46.
[6]SCHIFFBANKER H,BRANDL F K,THIEN G E.Development and Application of an Evaluation Technique to Assess the Subjective Character of Engine Noise[J].Que sais-je?,1991.