| 张珺,陈克安,郑如玥.几类典型环境声的主观评价及感知特性分析[J].,2021,40(2):213-219 |
| 几类典型环境声的主观评价及感知特性分析 |
| Subjective evaluation and perceptual characteristics analysis of several typical ambient sounds |
| 投稿时间：2020-04-21 修订日期：2021-02-28 |
| 中文摘要: |
| 近年来，通过“注入”调控声以降低交通噪声烦恼感的音频注入法受到广泛关注。以交通噪声调控研究为背景，通过成对比较评价了4类典型声音（实验一）和4类典型交通噪声（实验二）的烦恼感。结果表明，有调声（纯音和复音）烦恼度最高，自然声最低（海潮声最佳），蓝色噪声是仅次于海潮声令人感觉舒适的声音；但是被试对交通噪声和白噪声的评价存在明显的分类偏好。分析心理声学特征发现人对声音的感知依赖于多方面因素，但声刺激的某一因素（如特别粗糙或音调特别高）特别突出则会引起极大的反感。构建不相似度二维感知空间，第一维度反映了声音类型间的差异，该维度主要与实验一中声样本的谱下降值相关，实验二中声样本的特性响度均值（第1Bark）相关；第二维度表征了被试对不同类型声音的烦恼度评价，对实验一，时域上升时间与该维度具有强相关性，实验二的1/3倍频带声级（中心频率为200Hz）与该维度相关性最强。接下来的研究中，可以通过调整交通噪声的谱下降值和时域上升时间等参量使其谱结构更接近于自然声，从而降低噪声烦恼度。 |
| 英文摘要: |
| Traffic noise is the main source of noise pollution. In recent years, the audio injection method to reduce traffic noise annoyance by "injecting" control sound has received widespread attention. Based on the research of traffic noise control, this paper evaluates the annoyance of 4 kinds of ambient sound (experiment 1) and 4 kinds of traffic noise (experiment 2) through paired comparison. The results show that the tone (pure tone and FM tone) has the highest annoyance among the selected sounds, natural sound is the most comfortable (the tide has the lowest annoyance), and the blue noise is only inferior to the sea tide sound. The subjects have obvious classification preference of traffic noise and white noise. The analysis of psychoacoustic parameters found that the human''s perception of sound is related to various factors. However, if a certain factor (such as extremely rough or high pitched) is particularly prominent in the sound stimulus, it will cause a great deal of annoy. A two-dimensional perception space of environmental sound dissimilarity is constructed. The first dimension reflects the differences between the types of stimuli, which is mainly related to the spectral roll-off of the sound in experiment 1 and the specific loudness mean value (the first Bark) in experiment2. The second dimension represents the annoyance of subjects on different types of sounds. For experiment 1, the temporal parameter attack estimation has a strong correlation with this dimension, and the corresponding parameter of experiment 2 is the 1/3 octave band sound level with the center frequency of 200Hz. In the following research, the spectral structure of traffic noise can be closer to natural sound by modifying the e spectral roll-off and attack estimation, thus reducing noise annoyance. |
| DOI：10.11684/j.issn.1000-310X.2021.02.006 |
| 中文关键词: 环境声,主观评价,烦恼度,感知特性分析 |
| 英文关键词: ambient sound, subjective evaluation, annoyance, perceptual characteristics analysis |
| 基金项目: |
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