As the distance from the sound source increases, what happens to the sound intensity? A. It increases. B. It remains the same. C. It decreases. D. It becomes zero. 相关知识点: 试题来源: 解析 C。中文解析:文中提到在封闭房间里测量不同距离处的声音强度,发现随着距离声源的距离增加,声音强度...
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To answer what is si unit, it is the metric system used universally as a standard for measurements. It consists of 7 base units and 22 derived units. Know what is SI unit in a detailed way at BYJU’S.
Fechner law.Let /denote the intensity of a sound .The least intense sound that can be heard is I'=10^(-12) watt/m^2 at a frequency of 1000 cycles/sec(this value is called the threshold of audibility).If L denotes the loudness of a sound,measured in decibels,then L=10log(I/I')...
Figure 1: Sound pressure, sound power and sound intensity can all be expressed in decibels (dB) even though they represent different measured quantities. The measurement units used in sound pressure, sound power, and sound intensity are different. Often the measurement unit is omitted ...
(linguistics) The rise and fall of the voice in speaking. Stress Importance, significance, or emphasis placed on something. Intonation Emotive stress used to increase the power of delivery in speech. Stress The relative force with which a sound or syllable is spoken. Intonation A sound made by...
Knowing how to describe timbre in music isn’t easy. It’s something nearly anyone who enjoys music can understand intuitively but explaining it in words can be difficult. Timbre (pronounced TAM-ber) is the tone colour or texture of a sound. It’s the quality of sound that lets you tell...
For example, note on and off messages carry the note number value as well as the velocity value—the intensity the note was played with. This is part of how MIDI can capture the expressiveness of a performance. Here are the main MIDI channel messages: ...
Financial security is high on your list of priorities Sigh To exhale audibly in a long deep breath, as in weariness or relief. High (of a sound or note) having a frequency at the upper end of the auditory range A high, squeaky voice Sigh To emit a similar sound Willows sighing in th...