Audible Frequency Ranges of Music, Speech and Noise
Audible Frequency Ranges of Music, Speech and Noise
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音乐、语音和噪音的可听频率范围
DOI：
10.1121/1.1901901
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发表时间：
1931
期刊：
影响因子：
--
通讯作者：
W. Snow
中科院分区：
文献类型：
--
作者：
W. Snow
本文描述了电声系统的使用，该系统几乎均匀地传输可听频率范围，通过耳朵确定忠实再现音乐、语音和某些噪声所需的频率范围。声音在有或没有限制电路传输频率范围的滤波器的情况下交替再现。在再现中仅产生明显变化的滤波器截止值是根据听众对滤波器是否存在的判断推断出来的。人们发现，为了获得绝对保真度，除钢琴之外的所有乐器都需要再现最低的基本原理。超过 5,000 个周期的频率被证明是重要的，一些乐器，特别是噪声需要再现到可听上限。在测试中，有经验的听众判断一系列滤波器产生的“质量”下降。判断明确表明，随着频率范围的扩展，质量不断提高......
This paper describes the use of an electro-acoustic system, transmitting the audible frequency range almost uniformly, in determining by ear the frequency ranges required for faithful reproduction of music, speech, and certain noises.Sounds were reproduced alternately with and without filters limiting the frequency range transmitted by the electrical circuit. The filter cut-offs producing just noticeable changes in the reproduction were deduced from judgments of listeners as to the presence or absence of filters. It was found that for absolute fidelity all musical instruments except the piano require reproduction of the lowest fundamentals. The frequencies above 5,000 cycles were shown to be important, some instruments and particularly noises requiring reproduction to the upper audible limits.Tests were made in which experienced listeners judged the degradation of “quality” produced by a series of filters. The judgments showed definitely that the quality continues to improve as the frequency range is exte...