directivity pattern

简明释义

方向性图

英英释义

例句

1.Engineers analyze the directivity pattern 方向性模式 of loudspeakers to ensure even sound distribution in a venue.

工程师分析扬声器的directivity pattern 方向性模式以确保在场地内均匀的声音分布。

2.Understanding the directivity pattern 方向性模式 of antennas is crucial for optimizing signal strength.

理解天线的directivity pattern 方向性模式对于优化信号强度至关重要。

3.In architectural acoustics, the directivity pattern 方向性模式 of sound sources must be considered for optimal design.

在建筑声学中，必须考虑声源的directivity pattern 方向性模式以实现最佳设计。

4.The speaker's directivity pattern 方向性模式 is designed to focus sound in one direction, minimizing echo.

这个扬声器的directivity pattern 方向性模式旨在将声音集中在一个方向，最小化回声。

5.Different microphones have varying directivity patterns 方向性模式, affecting how they pick up sound from different sources.

不同的麦克风具有不同的directivity patterns 方向性模式，这会影响它们从不同来源接收声音的方式。

作文

In the field of acoustics and sound engineering, understanding the concept of directivity pattern is crucial for designing effective audio systems. The directivity pattern refers to how sound energy is distributed in different directions from a source. This characteristic is particularly important for microphones, loudspeakers, and other audio devices, as it influences how sound is captured or projected in various environments.When we consider a microphone, for example, its directivity pattern determines how well it picks up sound from different angles. A cardioid microphone, which has a heart-shaped directivity pattern, is designed to capture sound primarily from the front while rejecting noise from the sides and rear. This makes it ideal for live performances where background noise can be a significant issue. On the other hand, omnidirectional microphones capture sound equally from all directions, making them suitable for situations where ambient sound is desired, such as recording a group of musicians in a room.The directivity pattern also plays a vital role in the design of loudspeakers. Different speaker designs have distinct directivity patterns that affect how sound propagates through a space. For instance, a speaker with a narrow directivity pattern may focus sound into a specific area, which can be beneficial in concert settings where clarity and directionality are essential. Conversely, a speaker with a wide directivity pattern can fill a larger area with sound, making it suitable for ambient music in a café or public space.Moreover, the directivity pattern can be influenced by the environment in which the audio equipment is used. Factors such as room acoustics, furniture placement, and even the materials used in construction can alter how sound waves interact with surfaces, thereby affecting the overall directivity pattern. This interplay highlights the importance of considering both the equipment and the environment when setting up audio systems.In addition to microphones and loudspeakers, the directivity pattern is also relevant in the field of telecommunications, particularly in antenna design. Antennas have their own directivity patterns that determine how effectively they can transmit and receive signals in different directions. A highly directional antenna, for example, can focus its energy in a specific direction, improving communication over long distances. In contrast, an omnidirectional antenna spreads its signal in all directions, providing coverage over a wider area but with less intensity.Understanding the directivity pattern is not only important for engineers and designers but also for users who wish to optimize their audio experiences. By selecting the right equipment with an appropriate directivity pattern, individuals can significantly enhance sound quality in various settings, whether it be at home, in a studio, or at a live event.In summary, the directivity pattern is a fundamental aspect of sound production and reception that affects how audio is experienced in real-world scenarios. Whether dealing with microphones, loudspeakers, or antennas, recognizing and utilizing the directivity pattern can lead to improved performance and satisfaction in audio applications. As technology continues to evolve, a deeper understanding of these patterns will undoubtedly contribute to advancements in sound engineering and acoustic design.

在声学和声音工程领域，理解指向性模式的概念对于设计有效的音频系统至关重要。指向性模式指的是声源从不同方向分布的声能。这一特性对于麦克风、扬声器和其他音频设备尤其重要，因为它影响着声音在各种环境中的捕捉或投射。以麦克风为例，其指向性模式决定了它从不同角度拾取声音的能力。心形麦克风（cardioid microphone）具有心形的指向性模式，旨在主要从前方捕捉声音，同时拒绝来自侧面和后面的噪音。这使得它在现场表演中非常理想，因为背景噪音可能是一个重大问题。另一方面，全向麦克风则从各个方向均匀捕捉声音，适合于希望捕捉环境声音的场合，例如在房间内录制一组音乐家。指向性模式在扬声器设计中也发挥着至关重要的作用。不同的扬声器设计具有独特的指向性模式，影响声音在空间中的传播。例如，具有窄指向性模式的扬声器可以将声音集中在特定区域，这在对清晰度和方向性要求高的音乐会环境中非常有利。相反，具有宽指向性模式的扬声器能够用声音填充更大的区域，适合在咖啡馆或公共场所播放环境音乐。此外，指向性模式还会受到音频设备使用环境的影响。房间声学、家具摆放甚至建筑材料等因素都可以改变声波与表面的相互作用，从而影响整体的指向性模式。这种相互关系强调了在设置音频系统时同时考虑设备和环境的重要性。除了麦克风和扬声器，指向性模式在电信领域，特别是在天线设计中也很相关。天线具有自己的指向性模式，决定了它们在不同方向上传输和接收信号的有效性。例如，高指向性的天线可以将其能量聚焦在特定方向上，从而改善远距离通信。相比之下，全向天线则将信号扩散到所有方向，提供更广泛的覆盖范围，但强度较低。理解指向性模式不仅对工程师和设计师重要，对希望优化音频体验的用户同样重要。通过选择具有适当指向性模式的设备，个人可以显著提高在各种场合下的音质，无论是在家中、录音室还是现场活动中。总之，指向性模式是声音产生和接收的基本方面，影响着人们在现实场景中的音频体验。无论是处理麦克风、扬声器还是天线，认识并利用指向性模式都可以提高音频应用的性能和满意度。随着技术的不断发展，对这些模式的深入理解无疑将促进声音工程和声学设计的进步。