南京大学学报（自然科学版）2025，Vol.61Issue(5)：781-793,13.DOI:10.13232/j.cnki.jnju.2025.05.007
低混响条件下双耳Ambisonics重放空间感知质量的客观评价方法
Objective evaluation of spatial perception in binaural Ambisonics reproduction under low-reverberation conditions
摘要
Abstract
An objective evaluation method for spatial perception quality is proposed in this paper,integrating auditory filter model with acoustic feature and specifically tailored for binaural Ambisonics reproduction under low-reverberation conditions.First,the binaural input signals are processed through auditory filter models to extract objective spatial quality metrics.These metrics are combined with established spatial and general audio quality metrics to form a comprehensive acoustic feature set.A Gaussian process regression(GPR)model is then implemented to establish the mapping relationship between this feature set and subjective ratings,creating an objective quality prediction model.In order to validate the proposed method,subjective listening tests were conducted using binaural speech signals rendered by various Ambisonics reproduction algorithms in simulated anechoic and low-reverberation environments.The subjective ratings obtained were used to train and evaluate the objective model by cross-validation.The results demonstrate a significant improvement in prediction accuracy compared to existing evaluation models.Furthermore,a publicly available Ambix dataset is used for external validation,confirming the strong generalizability and robustness of the proposed model.关键词
空间音频/音质评价/双耳Ambisonics重放/高斯回归过程Key words
spatial audio/sound quality evaluation/binaural Ambisonics reproduction/Gaussian Process Regression分类
数理科学引用本文复制引用
易婧如,周运佳,林志斌..低混响条件下双耳Ambisonics重放空间感知质量的客观评价方法[J].南京大学学报（自然科学版）,2025,61(5):781-793,13.基金项目
国家自然科学基金(12274221) （12274221）
