fundamental frequency

简明释义

基准频率

英英释义

例句

1.The fundamental frequency of a tuning fork is usually 440 Hz for musical tuning.

调音叉的基频通常为440赫兹，用于音乐调音。

2.A voice's fundamental frequency can change with age and hormonal changes.

一个人的声音的基频可能会随着年龄和激素变化而改变。

3.In speech analysis, the fundamental frequency can indicate the speaker's emotional state.

在语音分析中，基频可以指示说话者的情绪状态。

4.When analyzing sound waves, the fundamental frequency is the lowest frequency in the signal.

在分析声波时，基频是信号中的最低频率。

5.The fundamental frequency of a guitar string determines its pitch.

吉他弦的基频决定了它的音高。

作文

The concept of fundamental frequency is pivotal in the fields of acoustics, music, and signal processing. Understanding this term can greatly enhance our comprehension of sound waves and their applications. The fundamental frequency refers to the lowest frequency of a periodic waveform, which determines the pitch of the sound we perceive. For instance, when a musical instrument is played, the note it produces corresponds to its fundamental frequency, while higher frequencies are known as harmonics or overtones. In music, the fundamental frequency is crucial because it establishes the tonal quality of a note. A piano playing middle C produces a fundamental frequency of approximately 261.63 Hz. This frequency is what our ears recognize as the 'C' note, while the harmonics add richness and character to the sound. Musicians often manipulate the fundamental frequency through various techniques, such as tuning their instruments or altering their playing style, to create different musical effects.Beyond music, the fundamental frequency also plays a significant role in speech and communication. Each vowel sound has its own fundamental frequency, which varies based on the speaker's vocal tract shape and size. This frequency helps listeners identify and distinguish different sounds, making it a key component of phonetics. For example, the fundamental frequency of a male voice typically ranges from 85 to 180 Hz, whereas a female voice usually falls between 165 to 255 Hz. These variations contribute to our ability to recognize and differentiate between speakers.Moreover, in the realm of technology, the fundamental frequency is essential in various applications, such as audio engineering and telecommunications. Engineers utilize the knowledge of fundamental frequency to design better microphones, speakers, and other audio equipment. By understanding how different frequencies interact, they can minimize distortion and enhance sound quality. In telecommunications, the fundamental frequency of signals determines how data is transmitted and received, impacting everything from phone calls to internet connectivity.In summary, the fundamental frequency is a foundational concept that permeates multiple disciplines, including music, speech, and technology. Its importance cannot be overstated, as it influences how we perceive sound and communicate. By grasping the implications of the fundamental frequency, we can appreciate the complexity of sound waves and their impact on our daily lives. Whether we are listening to a symphony, having a conversation, or using our smartphones, the fundamental frequency is always at play, shaping our auditory experiences and interactions. Therefore, recognizing and understanding this term can enrich our appreciation of both the art of sound and the science behind it.

“基频”这一概念在声学、音乐和信号处理领域中至关重要。理解这个术语可以大大增强我们对声波及其应用的理解。“基频”指的是周期波形的最低频率，它决定了我们所感知的声音的音高。例如，当一种乐器被演奏时，它产生的音符对应于其“基频”，而更高的频率被称为谐波或泛音。在音乐中，“基频”至关重要，因为它建立了音符的音质。钢琴演奏中音中C的“基频”大约为261.63赫兹。这个频率是我们耳朵识别为“C”音符的，而谐波则为声音增添了丰富性和特征。音乐家们常常通过各种技巧来操控“基频”，例如调整乐器的音调或改变演奏风格，以创造不同的音乐效果。除了音乐之外，“基频”在言语和交流中也发挥着重要作用。每个元音的发音都有其独特的“基频”，这取决于说话者的声道形状和大小。这种频率帮助听众识别和区分不同的声音，使其成为语音学的关键组成部分。例如，男性声音的“基频”通常在85到180赫兹之间，而女性声音通常在165到255赫兹之间。这些变化有助于我们识别和区分说话者。此外，在技术领域，“基频”在各种应用中也至关重要，例如音频工程和电信。工程师利用对“基频”的理解来设计更好的麦克风、扬声器和其他音频设备。通过了解不同频率之间的相互作用，他们可以最小化失真并提升音质。在电信中，信号的“基频”决定了数据的传输和接收方式，影响从电话通话到互联网连接的方方面面。总之，“基频”是一个基础概念，渗透到多个学科中，包括音乐、言语和技术。它的重要性不容小觑，因为它影响着我们如何感知声音和进行交流。通过掌握“基频”的含义，我们可以欣赏声波的复杂性及其对我们日常生活的影响。无论我们是在听交响乐、进行对话还是使用智能手机，“基频”总是在发挥作用，塑造我们的听觉体验和互动。因此，认识和理解这个术语可以丰富我们对声音艺术和其背后科学的欣赏。