decibel relative

简明释义

相对分贝

英英释义

例句

1.For accurate measurements, the device was calibrated to read decibel relative to a standard reference level.

为了准确测量，设备被校准为读取相对分贝，以标准参考水平为基准。

2.The sound level of the concert was measured at 100 decibel relative to the threshold of hearing.

音乐会的声音水平被测量为100相对分贝，以听觉阈值为基准。

3.When comparing noise pollution, we often use decibel relative values to assess the impact on human health.

在比较噪音污染时，我们通常使用相对分贝值来评估对人类健康的影响。

4.In audio engineering, decibel relative is crucial for mixing and mastering tracks.

在音频工程中，相对分贝对于混音和母带制作至关重要。

5.The engineer explained that a sound of 80 decibel relative is considered quite loud in residential areas.

工程师解释说，80相对分贝的声音在住宅区被认为相当大声。

作文

Understanding sound levels can be quite complex, especially when we delve into the science of acoustics. One term that frequently arises in discussions about sound measurements is decibel relative, which refers to the comparison of sound intensity levels relative to a reference point. This concept is crucial in various fields, including audio engineering, environmental noise assessment, and telecommunications.To grasp the meaning of decibel relative, it is important to first understand what decibels (dB) are. The decibel is a logarithmic unit used to measure sound intensity. It quantifies sound levels in a way that reflects the human ear's response to changes in sound pressure. For instance, an increase of 10 dB represents a tenfold increase in intensity, which the average person perceives as roughly twice as loud. In practical applications, decibel relative is often used to express sound levels in relation to a standard reference level. A common reference point is 20 micropascals, which is considered the threshold of hearing for the average human ear. When sound levels are expressed in dB relative to this reference, they are usually denoted as dB SPL (Sound Pressure Level). For example, if a sound measures 60 dB SPL, it means that its intensity is 60 decibels above the threshold of hearing.This relative measurement is particularly useful because it allows for a more meaningful comparison of different sounds. For instance, a whisper might measure around 30 dB SPL, while a busy street could reach levels of 85 dB SPL. By using decibel relative measurements, we can easily communicate how loud one sound is compared to another, which is essential in settings like concert venues, urban planning, and public health.Moreover, understanding decibel relative is vital for managing noise pollution. Urban areas often struggle with excessive noise, which can have detrimental effects on health and well-being. By measuring noise levels in dB relative to acceptable thresholds, city planners and environmental scientists can implement strategies to mitigate sound pollution. For instance, they might establish quiet zones in parks or regulate the hours during which construction can occur.In the realm of audio engineering, decibel relative plays a key role in mixing and mastering music. Sound engineers use this measurement to ensure that different elements of a track are balanced properly. If a vocal track is too quiet compared to the instruments, it may be adjusted by increasing its level in dB relative to the other sounds. This attention to detail ensures that the final product is enjoyable for listeners and maintains clarity across all frequencies.In conclusion, the term decibel relative is an essential concept in understanding sound levels and their implications in various fields. By comparing sound intensities to a reference point, we can effectively communicate, manage, and manipulate sound in our everyday lives. Whether it is in the context of enjoying music, assessing environmental noise, or designing sound systems, the understanding of decibel relative enriches our appreciation for the auditory world around us.

理解声音水平可能相当复杂，特别是当我们深入探讨声学科学时。一个在讨论声音测量中经常出现的术语是相对分贝，它指的是相对于参考点的声音强度水平的比较。这个概念在音频工程、环境噪声评估和电信等多个领域至关重要。要理解相对分贝的含义，首先需要了解分贝（dB）是什么。分贝是一种用于测量声音强度的对数单位。它以一种反映人耳对声音压力变化反应的方式量化声音水平。例如，增加10 dB表示强度增加十倍，普通人会将其感知为大约两倍的响亮。在实际应用中，相对分贝通常用于表达声音水平相对于标准参考水平的情况。一个常见的参考点是20微帕斯卡，这被认为是普通人耳的听阈。当声音水平以dB相对于此参考点表示时，通常标记为dB SPL（声压级）。例如，如果某个声音测量为60 dB SPL，则意味着其强度比听阈高出60分贝。这种相对测量尤其有用，因为它允许不同声音之间进行更有意义的比较。例如，低语的声音大约为30 dB SPL，而繁忙的街道可以达到85 dB SPL。通过使用相对分贝测量，我们可以轻松地传达一个声音与另一个声音的响亮程度，这在音乐会场地、城市规划和公共卫生等环境中至关重要。此外，理解相对分贝对于管理噪音污染至关重要。城市地区常常面临过度噪音的问题，这可能对健康和福祉产生不利影响。通过测量噪音水平相对于可接受阈值的dB，城市规划者和环境科学家可以实施策略来减轻声音污染。例如，他们可能在公园内设立安静区，或规定施工可以进行的时间。在音频工程领域，相对分贝在混音和母带处理音乐中发挥着关键作用。声音工程师使用这一测量来确保音轨中不同元素的平衡。如果人声轨道相对于乐器太安静，可以通过提高其相对于其他声音的dB水平进行调整。这种对细节的关注确保了最终产品对听众而言是愉悦的，并在所有频率上保持清晰。总之，术语相对分贝是在理解声音水平及其在各个领域的影响中一个至关重要的概念。通过将声音强度与参考点进行比较，我们可以有效地交流、管理和操控我们日常生活中的声音。无论是在享受音乐、评估环境噪声，还是设计声音系统的背景下，对相对分贝的理解都丰富了我们对周围听觉世界的欣赏。