cardioid

简明释义

英[ˈkɑːdɪɔɪd]美[ˈkɑrdɪˌɔɪd]

n. 心脏形曲线

英英释义

单词用法

同义词

反义词

例句

1.The WH20 has a cardioid (unidirectional) pickup pattern.

该WH20有一个心形(单向)拾音模式。

2.The DM1.0 microphone displays a tight cardioid pattern to minimise feedback problems and effectively reject signals not originating directly in front of the mic capsule.

麦克风的DM 1.0心紧显示模式，以减低反馈的问题，不能有效地拒绝信号源自胶囊的麦克风前。

3.Other patterns include "super cardioid" (very directional), which may be useful if you want to tighten up the sonic picture.

别的指向型包括“超心型”(超指向)，假如你想缩紧声场可能会用得着。

4.The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the…

摆线逆运动中与动切线成定角的直线，其包络也是圆周渐开线。

5.The cardioid pickup pattern minimizes annoying feedback when used close to sound reinforcement speakers and monitors, while reducing the pickup of unwanted off axis sounds.

最小的心形拾音模式使用时，恼人的反馈接近扩声音箱和显示器，同时减少不必要的离轴声音回升。

6.The DM2.0 is a hand held dynamic microphone featuring a super-cardioid pattern to minimize feedback and effectively reject signals not originating in front of the microphone capsule.

该DM 2.0是一个动态的手持麦克风具有超心型图案，以尽量减少和有效的反馈信号不拒绝在话筒前起源。

7.This cardioid condenser microphone defines classic style and elegance in its seemingly indestructible protective screening.

这指向电容话筒，定义在其看似坚不可摧的防护筛选经典的风格和优雅。

8.The cardioid shape of the pickup pattern helps reduce background noise.

这种心形的拾音模式有助于减少背景噪音。

9.The microphone has a cardioid pattern, which means it picks up sound primarily from the front.

这个麦克风具有心形拾音模式，这意味着它主要从前方接收声音。

10.For podcasting, a cardioid microphone is often recommended to capture clear vocals.

对于播客，通常推荐使用心形麦克风以捕捉清晰的人声。

11.In live performances, artists prefer cardioid mics to avoid feedback from speakers.

在现场表演中，艺术家更喜欢使用心形麦克风，以避免来自扬声器的反馈。

12.When setting up the audio equipment, we chose a cardioid microphone for its directional capabilities.

在设置音频设备时，我们选择了一款具有方向性的心形麦克风。

作文

In the realm of mathematics and physics, various shapes and curves play a crucial role in understanding complex concepts. One such fascinating shape is the cardioid, which derives its name from the Greek word 'kardia', meaning heart. This unique curve can be described as a heart-shaped figure that can be generated through the tracing of a point on the circumference of a circle as it rolls around another circle of the same radius. The cardioid is not only aesthetically pleasing but also has significant applications in fields like acoustics, optics, and even engineering.To visualize a cardioid, imagine a circle with a radius of 'r'. If you take another circle of the same radius and roll it around the first one, the path traced by a specific point on the circumference of the rolling circle will form a cardioid. This mathematical beauty can be represented in polar coordinates as r = a(1 + cos(θ)), where 'a' is a constant. This equation highlights the symmetry of the cardioid around the vertical axis, making it a subject of interest in both theoretical and applied mathematics.The significance of the cardioid extends beyond pure mathematics. In acoustics, for instance, microphones designed with a cardioid pickup pattern are widely used. These microphones are sensitive to sound coming from the front while rejecting noise from the sides and rear. This characteristic makes them ideal for live performances and studio recordings, as they help isolate the desired sound source from background noise. The cardioid pattern thus serves a practical purpose, demonstrating how mathematical principles can influence technology and improve audio quality.In optics, the cardioid shape finds its application in the design of certain types of reflectors. A parabolic reflector, which is commonly used in satellite dishes, can be modified into a cardioid shape to enhance its focus on signals from specific directions. This adaptation allows for better reception of signals, further illustrating the intersection of geometry and real-world applications.Moreover, the cardioid has intriguing properties when it comes to waveforms. In signal processing, the cardioid function can describe certain types of sound waves, especially in the context of stereo sound systems. The use of cardioid patterns in audio engineering helps create a more immersive listening experience by managing how sound waves interact in a given space.In conclusion, the cardioid is more than just a mathematical curiosity; it embodies the connection between abstract mathematics and tangible applications in the world around us. From enhancing audio technology to improving optical devices, the cardioid demonstrates the beauty of mathematics in action. Understanding this shape not only enriches our knowledge of geometry but also opens our eyes to the myriad ways in which mathematical concepts manifest in everyday life. As we continue to explore the wonders of mathematics, the cardioid serves as a reminder of the elegance and practicality that such shapes can offer in various fields.

在数学和物理的领域中，各种形状和曲线在理解复杂概念方面发挥着至关重要的作用。其中一个迷人的形状是心形曲线，它的名字源于希腊词“kardia”，意为心脏。这个独特的曲线可以通过描绘一个点在一个圆的周围滚动时所形成的路径来描述，最终形成一个心形的图案。心形曲线不仅美观，而且在声学、光学甚至工程等领域有着重要的应用。要想象一下心形曲线，可以想象一个半径为'r'的圆。如果你再取一个相同半径的圆，并让它在第一个圆的周围滚动，那么在滚动圆的周长上某个特定点所描绘的路径将形成一个心形曲线。这个数学美可以用极坐标表示为r = a(1 + cos(θ))，其中'a'是一个常数。这个方程突显了心形曲线在垂直轴上的对称性，使其成为理论和应用数学中的研究对象。心形曲线的意义超越了纯数学。在声学中，例如，设计为心形曲线拾音模式的麦克风被广泛使用。这些麦克风对来自前方的声音敏感，而对侧面和后方的噪音则有很好的抑制效果。这一特性使得它们非常适合现场表演和录音，因为它们帮助隔离所需的声音源与背景噪音。因此，心形曲线模式在技术上的实用性，展示了数学原理如何影响技术并改善音质。在光学中，心形曲线形状在某些类型反射器的设计中也找到了应用。抛物面反射器，通常用于卫星天线，可以改造成心形曲线形状，以增强其在特定方向上接收信号的能力。这种改进使得信号接收更加有效，进一步说明了几何学与现实世界应用之间的交集。此外，心形曲线在波形方面也具有引人入胜的特性。在信号处理领域，心形曲线函数可以描述某些类型的声波，特别是在立体声系统的上下文中。音频工程中使用心形曲线模式有助于通过管理声波在给定空间中的相互作用来创造更身临其境的听觉体验。总之，心形曲线不仅仅是一个数学好奇心；它体现了抽象数学与我们周围世界中具体应用之间的联系。从增强音频技术到改善光学设备，心形曲线展示了数学在行动中的美。理解这个形状不仅丰富了我们对几何的知识，也让我们看到数学概念在日常生活中以各种方式表现出来的无数可能性。当我们继续探索数学的奇迹时，心形曲线提醒我们这样的形状在各个领域所能提供的优雅和实用性。