automatic amplitude control

简明释义

自动调幅控制

英英释义

例句

1.During live performances, sound engineers rely on automatic amplitude control for optimal sound balance.

在现场表演中，音响工程师依赖自动幅度控制来获得最佳声音平衡。

2.Television transmitters often incorporate automatic amplitude control to enhance picture quality.

电视发射器通常采用自动幅度控制来提高图像质量。

3.In audio processing, automatic amplitude control helps prevent distortion during loud passages.

在音频处理过程中，自动幅度控制有助于防止在响亮段落中出现失真。

4.The radio receiver uses automatic amplitude control to maintain a steady signal strength.

收音机接收器使用自动幅度控制来保持稳定的信号强度。

5.The function of automatic amplitude control in the amplifier ensures consistent output levels.

放大器中自动幅度控制的功能确保输出水平一致。

作文

In the field of electronics and telecommunications, the concept of automatic amplitude control plays a crucial role in ensuring signal integrity and quality. 自动幅度控制 is a technique used to maintain a constant output amplitude of a signal regardless of variations in input signal strength. This is particularly important in systems where signals can fluctuate due to various factors such as distance, interference, or environmental conditions.One of the primary applications of automatic amplitude control is in radio transmission. In a typical radio communication system, the strength of the received signal can vary significantly based on the transmitter's distance and obstacles that may hinder the signal. By implementing automatic amplitude control, the receiver can adjust the gain of the incoming signal dynamically. This ensures that the audio quality remains consistent, preventing loud bursts of sound or inaudible whispers.Moreover, automatic amplitude control is essential in audio processing equipment. For instance, in mixing consoles used in live sound reinforcement or studio recording, maintaining a balanced sound level is vital. If one instrument or vocal track is significantly louder than others, it can lead to an unpleasant listening experience. Here, automatic amplitude control helps to normalize levels, allowing for a more cohesive mix.Another significant area where automatic amplitude control is applied is in video broadcasting. In television production, varying light conditions can cause fluctuations in the brightness and contrast of the video signal. By utilizing automatic amplitude control, producers can ensure that the video output maintains a consistent visual quality, making it more appealing for viewers.The technology behind automatic amplitude control often involves feedback loops and algorithms that analyze the incoming signal and make real-time adjustments. These systems can be highly sophisticated, using digital signal processing (DSP) techniques to achieve precise control over amplitude levels. This capability allows engineers to design equipment that can adapt to changing conditions without manual intervention, thereby enhancing user experience and operational efficiency.Furthermore, the importance of automatic amplitude control extends beyond traditional media applications. In modern telecommunications, the rise of mobile devices and wireless communication has made this technology even more critical. As users move through different environments—such as urban areas with tall buildings or rural settings with fewer obstacles—their devices must continuously adjust to maintain optimal signal quality. Automatic amplitude control enables smartphones and other wireless devices to provide clear voice calls and high-quality data transmission by managing the amplitude of the signals they send and receive.In conclusion, automatic amplitude control is a fundamental technology that underpins many aspects of modern communication and media production. From radio transmission to audio mixing and video broadcasting, its ability to maintain consistent signal levels enhances the overall user experience. As technology continues to evolve, the significance of automatic amplitude control will only grow, making it an essential component in the future of electronic communications and multimedia applications.

在电子和电信领域，自动幅度控制的概念在确保信号完整性和质量方面发挥着至关重要的作用。自动幅度控制是一种技术，用于保持信号的输出幅度恒定，无论输入信号强度如何变化。这在信号可能因距离、干扰或环境条件等各种因素而波动的系统中尤为重要。自动幅度控制的主要应用之一是在无线电传输中。在典型的无线电通信系统中，接收信号的强度可能因发射器的距离和可能阻碍信号的障碍物而显著变化。通过实施自动幅度控制，接收器可以动态调整输入信号的增益。这确保了音频质量保持一致，防止声音突然变响或听不清的低语。此外，自动幅度控制在音频处理设备中也至关重要。例如，在用于现场音响增强或录音室录制的混音台中，保持平衡的音量水平至关重要。如果某个乐器或人声轨道显著高于其他轨道，可能会导致不愉快的听觉体验。在这里，自动幅度控制有助于规范化音量水平，从而实现更具凝聚力的混音。自动幅度控制应用的另一个重要领域是视频广播。在电视制作中，变化的光照条件可能导致视频信号的亮度和对比度波动。通过利用自动幅度控制，制作人可以确保视频输出保持一致的视觉质量，使其对观众更具吸引力。自动幅度控制背后的技术通常涉及反馈回路和算法，这些算法分析输入信号并进行实时调整。这些系统可以非常复杂，使用数字信号处理（DSP）技术来实现对幅度水平的精确控制。这种能力使工程师能够设计出能够适应不断变化条件的设备，无需人工干预，从而提高用户体验和操作效率。此外，自动幅度控制的重要性超越了传统媒体应用。在现代电信中，移动设备和无线通信的兴起使这项技术变得更加关键。当用户在不同环境中移动时，例如高楼林立的城市地区或障碍物较少的乡村环境，他们的设备必须不断调整以保持最佳信号质量。自动幅度控制使智能手机和其他无线设备能够通过管理它们发送和接收信号的幅度，提供清晰的语音通话和高质量的数据传输。总之，自动幅度控制是一项基础技术，支撑着现代通信和媒体制作的许多方面。从无线电传输到音频混合和视频广播，它维持一致信号水平的能力提升了整体用户体验。随着技术的不断发展，自动幅度控制的重要性将只会增加，使其成为未来电子通信和多媒体应用中的一个重要组成部分。