fundamental frequency

简明释义

基频

英英释义

例句

1.The fundamental frequency 基频 of a vibrating string can be calculated using its length and tension.

振动弦的基频可以通过其长度和张力来计算。

2.In acoustics, the fundamental frequency 基频 determines the pitch of a sound.

在声学中，基频决定了声音的音高。

3.When analyzing a signal, identifying the fundamental frequency 基频 is crucial for understanding its harmonic content.

在分析信号时，识别基频对理解其谐波内容至关重要。

4.The musician tuned his guitar to match the fundamental frequency 基频 of the notes he wanted to play.

音乐家调音他的吉他以匹配他想演奏的音符的基频。

5.In speech analysis, the fundamental frequency 基频 helps in determining the speaker's gender and emotional state.

在语音分析中，基频有助于确定说话者的性别和情感状态。

作文

The concept of fundamental frequency plays a crucial role in various fields such as music, acoustics, and signal processing. In simple terms, the fundamental frequency refers to the lowest frequency of a periodic waveform, which determines the pitch of the sound we hear. For instance, when a musical instrument is played, the fundamental frequency is the primary tone that resonates, while higher frequencies contribute to the overall timbre or quality of the sound. Understanding this concept is essential for musicians and sound engineers alike, as it helps them manipulate sounds effectively.In music, the fundamental frequency is vital for creating harmony and melody. Each note corresponds to a specific fundamental frequency, and when notes are played together, their fundamental frequencies interact to produce chords. Musicians often tune their instruments to ensure that the fundamental frequency of each string or pipe matches the desired pitch. For example, the standard tuning for a guitar has the low E string vibrating at approximately 82.41 Hz, which is its fundamental frequency. This precise tuning allows musicians to create beautiful melodies and harmonies.Moreover, the fundamental frequency is significant in the study of acoustics, where it helps us understand how sound waves travel and interact with different environments. When sound waves propagate through the air, they consist of multiple frequencies, but the fundamental frequency serves as the base frequency from which all other harmonics are derived. This principle is particularly important in architectural acoustics, where the design of a space can influence how sound is perceived. For instance, concert halls are often designed to enhance the fundamental frequency of musical performances, ensuring that audiences experience clear and rich sound.In the realm of signal processing, the fundamental frequency is used to analyze and synthesize audio signals. Engineers employ techniques such as Fourier analysis to break down complex waveforms into their constituent frequencies, identifying the fundamental frequency among them. This process is crucial for applications like speech recognition, where distinguishing the fundamental frequency of a speaker's voice can aid in understanding and processing spoken language. Additionally, synthesizers often generate sounds by manipulating the fundamental frequency and its harmonics, allowing musicians to create a wide variety of tones and textures.In conclusion, the fundamental frequency is a foundational concept that underpins our understanding of sound in various contexts. Whether in music, acoustics, or signal processing, recognizing the importance of the fundamental frequency enables us to appreciate the complexity and beauty of sound. As we continue to explore the world of sound, grasping the significance of the fundamental frequency will undoubtedly enhance our auditory experiences and creative endeavors.

“基频”这个概念在音乐、声学和信号处理等多个领域中发挥着至关重要的作用。简单来说，基频是指周期波形的最低频率，它决定了我们所听到的声音的音高。例如，当乐器演奏时，基频是共鸣的主要音调，而更高的频率则有助于声音的整体音色或质量。理解这一概念对音乐家和音响工程师来说至关重要，因为它帮助他们有效地操控声音。在音乐中，基频对创造和谐与旋律至关重要。每个音符对应一个特定的基频，当音符一起演奏时，它们的基频相互作用以产生和弦。音乐家通常会调音他们的乐器，以确保每根弦或管的基频与所需的音高相匹配。例如，吉他的标准调音使得低E弦的振动频率约为82.41赫兹，这是它的基频。这种精确的调音使音乐家能够创造出美丽的旋律和和声。此外，基频在声学研究中也很重要，它帮助我们理解声音波如何传播以及与不同环境的互动。当声音波通过空气传播时，它们由多个频率组成，但基频作为所有其他谐波的基础频率。这一原理在建筑声学中尤为重要，空间的设计可以影响声音的感知。例如，音乐厅的设计通常旨在增强音乐表演的基频，确保观众体验到清晰而丰富的声音。在信号处理领域，基频被用于分析和合成音频信号。工程师们使用傅里叶分析等技术将复杂的波形分解为其组成频率，从中识别出基频。这一过程对于语音识别等应用至关重要，因为区分说话者声音的基频可以帮助理解和处理口语。此外，合成器通常通过操控基频及其谐波来生成声音，使音乐家能够创造出各种各样的音调和音色。总之，基频是一个基础概念，支撑着我们对声音在各种背景下的理解。无论是在音乐、声学还是信号处理领域，认识到基频的重要性使我们能够欣赏声音的复杂性和美丽。随着我们继续探索声音的世界，掌握基频的意义无疑将增强我们的听觉体验和创造性工作。