frequency-modulation and voice frequency

简明释义

调频与音频

英英释义

例句

1.The engineer explained how frequency-modulation and voice frequency work together in sound systems.

工程师解释了调频和语音频率在音响系统中如何协同工作。

2.During the workshop, we learned about the principles of frequency-modulation and voice frequency in audio engineering.

在研讨会上，我们学习了音频工程中调频和语音频率的原理。

3.The radio station uses frequency-modulation and voice frequency to transmit clear audio signals.

该广播电台使用调频和语音频率来传输清晰的音频信号。

4.For better sound quality, the device is designed to optimize frequency-modulation and voice frequency.

为了更好的音质，该设备被设计为优化调频和语音频率。

5.In telecommunications, frequency-modulation and voice frequency are crucial for ensuring effective communication.

在电信中，调频和语音频率对于确保有效沟通至关重要。

作文

In the realm of telecommunications and audio technology, the concepts of frequency-modulation and voice frequency play crucial roles in how we communicate and perceive sound. Understanding these terms not only enhances our knowledge of audio systems but also deepens our appreciation for the intricacies of sound transmission. Frequency-modulation and voice frequency are fundamental to various applications, from radio broadcasting to telecommunication systems. To begin with, frequency-modulation (FM) is a technique used to encode information in a carrier wave by varying its frequency. This method is widely utilized in radio broadcasting, where it allows for high-fidelity sound transmission over long distances. The primary advantage of FM over amplitude modulation (AM) is its resistance to noise and interference, making it ideal for music and voice transmission. The process involves modulating the frequency of the carrier wave according to the amplitude of the input signal, which can be music or vocal sounds. As a result, FM provides clearer and more reliable audio quality.On the other hand, voice frequency refers to the range of frequencies that are typically associated with human speech. This range generally spans from about 300 Hz to 3400 Hz. Understanding voice frequency is essential for various applications, including telecommunications, where clarity and intelligibility of speech are paramount. By focusing on this specific frequency range, engineers can design systems that effectively transmit human speech while minimizing background noise. In telephony, for instance, the use of voice frequency ensures that conversations are transmitted clearly, allowing for effective communication.The interplay between frequency-modulation and voice frequency becomes particularly evident in modern communication systems. For example, mobile phones utilize FM techniques to transmit voice signals efficiently. When a person speaks into a mobile phone, their voice is converted into electrical signals that modulate the frequency of the carrier wave. This modulation encodes the voice frequencies, allowing them to be transmitted over the airwaves. Upon reaching the receiver, the process is reversed, and the original voice is reconstructed, enabling a seamless conversation.Moreover, the advancements in digital technology have further enhanced the capabilities of frequency-modulation and voice frequency systems. Digital signal processing (DSP) techniques allow for improved compression, error correction, and noise reduction, resulting in even clearer audio transmission. With the rise of Voice over Internet Protocol (VoIP) services, the principles of frequency-modulation and voice frequency have been adapted to work over the internet, providing users with high-quality voice communication.In conclusion, the concepts of frequency-modulation and voice frequency are integral to our understanding of sound transmission and telecommunications. By grasping the significance of FM and the voice frequency range, we can appreciate the technological innovations that facilitate clear and reliable communication. As technology continues to evolve, the importance of these concepts will only grow, shaping the future of how we connect and interact with one another through sound.

在电信和音频技术领域，频率调制和语音频率的概念在我们如何沟通和感知声音方面发挥着至关重要的作用。理解这些术语不仅增强了我们对音频系统的知识，也加深了我们对声音传输复杂性的欣赏。频率调制和语音频率是各种应用的基础，从广播到电信系统。首先，频率调制(FM)是一种通过改变载波波的频率来编码信息的技术。这种方法广泛用于广播，它允许高保真声音在长距离上传输。FM相较于幅度调制(AM)的主要优点在于其对噪声和干扰的抵抗力，使其成为音乐和人声传输的理想选择。这个过程涉及根据输入信号的幅度调制载波波的频率，这些输入信号可以是音乐或人声。因此，FM提供了更清晰和更可靠的音质。另一方面，语音频率是指与人类语音通常相关的频率范围。这个范围通常从约300赫兹到3400赫兹。理解语音频率对各种应用至关重要，包括电信，在那里，语音的清晰度和可懂性是最重要的。通过专注于这个特定的频率范围，工程师可以设计出有效传输人声的系统，同时最小化背景噪声。例如，在电话通信中，使用语音频率确保对话清晰传输，从而实现有效沟通。频率调制和语音频率之间的相互作用在现代通信系统中尤为明显。例如，手机利用FM技术高效传输语音信号。当一个人对着手机说话时，他们的声音会被转换成电信号，这些信号调制载波波的频率。这种调制编码了语音频率，使其能够在空中传播。当信号到达接收器时，过程被逆转，原始声音被重建，使得对话无缝进行。此外，数字技术的进步进一步增强了频率调制和语音频率系统的能力。数字信号处理(DSP)技术允许改进压缩、错误校正和噪声减少，从而实现更清晰的音频传输。随着互联网协议语音(VoIP)服务的兴起，频率调制和语音频率的原则已被调整为在互联网中工作，为用户提供高质量的语音通信。总之，频率调制和语音频率的概念是我们理解声音传输和电信的基础。通过掌握FM和语音频率范围的重要性，我们可以欣赏促进清晰可靠通信的技术创新。随着技术的不断发展，这些概念的重要性只会增加，塑造我们通过声音连接和互动的未来。