文章摘要
李德民,祝培生,路晓东,陶畹琪,周凯宇,任锡洁.基于汉语语音素材的响度算法误差研究[J].,2019,59(3):271-279
基于汉语语音素材的响度算法误差研究
Study of deviations of different loudness algorithms based on Chinese speech materials
  
DOI:10.7511/dllgxb201903008
中文关键词: 响度模型  汉语语音素材  总响度
英文关键词: loudness model  Chinese speech materials  total loudness
基金项目:国家自然科学基金资助项目(51778100).
作者单位
李德民,祝培生,路晓东,陶畹琪,周凯宇,任锡洁  
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中文摘要:
      对两类在国际上得到广泛接受的响度模型即Moore和Zwicker时变响度模型及ITU(国际电信联盟)标准推荐响度模型进行了对比研究.通过耳机回放的主观听音实验评估了这两类响度模型在计算汉语语音素材总响度时的有效性.模型的评价采用了4种不同的统计量,对模型的绝对精度和相对精度进行了度量.研究发现,ITU-R BS.1770-4推荐响度模型相对简单,更易于对语音素材的总响度进行度量;在计算汉语语音素材的总响度时,ITU标准推荐响度模型比Moore和Zwicker时变响度模型的精度高,提高了0.5~2 dB.
英文摘要:
      A comparative study has been completed between two types of internationally recognized loudness models: Moore′s and Zwicker′s time-varying loudness models and loudness models recommended by ITU(International Telecommunication Union). To test the availability of these loudness models in terms of calculating the total loudness of Chinese speech materials, a loudness listening experiment is realized, and acoustic stimuli are presented to subjects through headphones. Four different statistical measures are employed in the evaluation of the models, and the absolute accuracy and relative accuracy of the models are measured. It is found that the loudness model recommended by ITU-R BS. 1770-4 is relatively simple and easier to measure the total loudness of speech materials. When calculating the total loudness of Chinese speech materials, the loudness models recommended by the ITU are more accurate than Moore′s and Zwicker′s time-varying loudness models, and the improved accuracy is 0.5-2 dB.
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