摘要
对节目音质的主观评价应采用什么方法研究?评价术语有哪些?一直是电声界讨论的问题。用传统的数理统计方法去处理音质评价问题,有时会很难办。为此,有人提出用模糊数学方法对电声器件的音质进行研究。但提出的模型在实际应用中,有许多不足之处,且各术语的权重是人为确定的,有很大的主观性。因此,本文在论述音乐节目的音质主观评价具有模糊性的基础上,用模糊数学的方法对音质评价结果进行了分析。提出音质主观评价应采用“模糊二阶综合评判”的方法。并用模糊数学的计算方法确定了各术语的权重。对评价术语的选择是参考了大量国内外文献并结合节目录音的特点而定的。听音实验的声音样本是国内、外生产的唱片中选的各种体裁的音乐片段。实验者为受过专门训练的音乐教师,音响工程师和音响导演。
What method can be used to study the subjective assessment of sound quality on music programmes? Which are the assessment terms? These have long been disputed in electroacousties field. The traditional mathematical statistical method sometimes seems imperfect. Therefore, in 1985 fuzzy mathematical method was suggested to deal with subjective assessment of audio devices. But the suggested model has shortcomings in practical application and the weightings of terms are man-made with great subjectivity. On the basis of the fuzziness of subjective assessment, this paper aims to analyse the result of judgement with fuzzy mathematical method, 'A Fuzzy two-stage model for comprehensive judgement' is suggested. And the analysing factors of terms are determined by the computing method of fuzzy mathematical terms which are dependent on the programmes recording features with reference to many papers at home and abroad. The music samples in listening tests are the musical segmefits in different forms which are selected from the discs produced both at home and abroad. The experimenter are specially trained music teachers, audio engineers, and audio directors.
出处
《电声技术》
北大核心
1989年第3期5-11,共7页
Audio Engineering
