voice frequency receiver

简明释义

音频接收机

英英释义

例句

1.The voice frequency receiver helped us capture clearer signals from the radio.

这个语音频率接收器帮助我们从收音机中捕捉到更清晰的信号。

2.To enhance communication, the team decided to upgrade their voice frequency receiver.

为了增强沟通，团队决定升级他们的语音频率接收器。

3.During the conference, we used a voice frequency receiver for better audio transmission.

在会议期间，我们使用了一个语音频率接收器以获得更好的音频传输。

4.The technician installed a voice frequency receiver to improve the clarity of phone calls.

技术员安装了一个语音频率接收器以改善电话通话的清晰度。

5.The voice frequency receiver is essential for ensuring high-quality sound in live performances.

这个语音频率接收器对于确保现场表演中的高质量声音至关重要。

作文

In the realm of telecommunications, various devices play crucial roles in facilitating communication. One such device is the voice frequency receiver, which is essential for converting electrical signals into audible sound waves. Understanding the function and significance of a voice frequency receiver can enhance our appreciation of modern communication technologies. This essay will explore the concept, workings, and applications of a voice frequency receiver.A voice frequency receiver is designed to detect and process voice signals transmitted over various mediums, including radio waves and telephone lines. The term 'voice frequency' generally refers to the range of frequencies that human speech occupies, typically between 300 Hz and 3400 Hz. This specific range is crucial because it encompasses the fundamental frequencies and harmonics that are essential for intelligible speech. By focusing on this frequency range, a voice frequency receiver can effectively filter out noise and other non-voice signals, ensuring that the message being communicated is clear and easily understood.The operation of a voice frequency receiver involves several key components, including an antenna, a demodulator, and a speaker. The antenna receives incoming radio waves, which carry the voice signals. Once the signals are captured, they are fed into a demodulator, where they are converted from their modulated form back into an audio signal. This audio signal is then amplified and sent to a speaker, where it is transformed into sound waves that can be heard by the listener.One of the primary applications of a voice frequency receiver is in telecommunication systems. For instance, traditional landline telephones utilize voice frequency receivers to transmit voice signals over long distances. When a person speaks into the phone, their voice is converted into electrical signals that travel through the telephone network. At the receiving end, the voice frequency receiver decodes these signals back into sound, allowing the recipient to hear the caller's voice clearly.In addition to telephones, voice frequency receivers are also integral to two-way radios, intercom systems, and public address systems. In these applications, the ability to receive and reproduce voice signals accurately is critical for effective communication. For example, in emergency response situations, first responders rely on two-way radios equipped with voice frequency receivers to coordinate their efforts and ensure safety. The clarity and reliability of the communications can significantly impact the success of their operations.Moreover, advancements in technology have led to the development of digital voice frequency receivers, which offer enhanced capabilities compared to their analog counterparts. Digital receivers can process a wider range of frequencies and provide better noise reduction, resulting in superior sound quality. They also enable features such as voice recognition and digital signal processing, further improving the efficiency of communication systems.In conclusion, a voice frequency receiver plays a vital role in modern communication by converting electrical signals into audible sound waves, allowing people to connect and interact seamlessly. Its applications span across various fields, from traditional telephony to advanced digital communication systems. As technology continues to evolve, the importance of voice frequency receivers will only grow, paving the way for even more innovative communication solutions in the future. Understanding how these devices work and their significance helps us appreciate the complexities of the communication technologies we often take for granted in our daily lives.

在电信领域，各种设备在促进通信中发挥着至关重要的作用。其中之一就是语音频率接收器，它对于将电信号转换为可听的声波至关重要。理解语音频率接收器的功能和重要性可以增强我们对现代通信技术的欣赏。本文将探讨语音频率接收器的概念、工作原理和应用。语音频率接收器旨在检测和处理通过各种媒介（包括无线电波和电话线路）传输的语音信号。“语音频率”一词通常指人类语言所占据的频率范围，通常在300 Hz到3400 Hz之间。这个特定的范围至关重要，因为它涵盖了理解语言所需的基本频率和谐波。通过专注于这个频率范围，语音频率接收器能够有效地过滤噪声和其他非语音信号，确保交流的信息清晰易懂。语音频率接收器的操作涉及几个关键组件，包括天线、解调器和扬声器。天线接收传入的无线电波，这些波携带着语音信号。一旦捕获信号，它们被送入解调器，在那里它们从调制形式转化为音频信号。该音频信号随后被放大并发送到扬声器，在那里被转化为可以被听者听到的声波。语音频率接收器的主要应用之一是在电信系统中。例如，传统的固定电话利用语音频率接收器在长距离上传输语音信号。当一个人对着电话说话时，他们的声音被转换为电信号，通过电话网络传输。在接收端，语音频率接收器将这些信号解码回声音，使接收者能够清楚地听到呼叫者的声音。除了电话之外，语音频率接收器还在对讲机、内部通信系统和公共广播系统中发挥着重要作用。在这些应用中，准确接收和重现语音信号的能力对于有效沟通至关重要。例如，在紧急响应情况下，第一响应者依赖配备有语音频率接收器的对讲机来协调他们的工作，确保安全。通信的清晰度和可靠性可以显著影响他们行动的成功。此外，技术的进步导致数字语音频率接收器的发展，这些设备相比于其模拟对应物提供了更强大的功能。数字接收器可以处理更宽范围的频率，并提供更好的噪声减少，从而获得更优质的声音。他们还使得诸如语音识别和数字信号处理等功能成为可能，进一步提高了通信系统的效率。总之，语音频率接收器在现代通信中发挥着至关重要的作用，将电信号转换为可听的声波，使人们能够无缝连接和互动。它的应用跨越多个领域，从传统电话到先进的数字通信系统。随着技术的不断发展，语音频率接收器的重要性只会增加，为未来更具创新性的通信解决方案铺平道路。理解这些设备的工作原理及其重要性，帮助我们欣赏在日常生活中常常被视为理所当然的通信技术的复杂性。