compandor

简明释义

英[kəmˈpændə(r)]美[kəmˈpændər]

n. [通信][电子] 压缩扩展器

英英释义

单词用法

同义词

反义词

例句

1.On this basis, a design method of an optimal vector compandor with least mean square error criterion is derived.

本文由此出发，导出在最小均方误差意义下的最佳矢量压扩量化设计。

2.In this paper, we put emphasis upon introducing the applications of the monolithic integrated compandor NE570 in telecom system. Four applied circuits of NE570 are given.

论文重点介绍单片集成压扩器NE570在电信系统中的应用。文中给出了NE570的四种应用电路。

3.In this paper, we put emphasis upon introducing the applications of the monolithic integrated compandor NE570 in telecom system. Four applied circuits of NE570 are given.

论文重点介绍单片集成压扩器NE570在电信系统中的应用。文中给出了NE570的四种应用电路。

4.A compandor can be used to compress loud sounds and expand soft sounds in a recording.

在录音中，可以使用compandor来压缩大声和扩展小声。

5.The role of a compandor in audio processing is crucial for balancing sound levels.

在音频处理中的compandor角色对平衡音量水平至关重要。

6.The technician adjusted the compandor settings to enhance the dynamic range of the music.

技术员调整了compandor设置，以增强音乐的动态范围。

7.In live performances, a compandor helps to prevent distortion and maintain sound quality.

在现场表演中，compandor有助于防止失真并保持音质。

8.Using a compandor can significantly improve the clarity of recorded vocals.

使用compandor可以显著提高录制人声的清晰度。

作文

In the world of technology and telecommunications, the term compandor refers to a device or system that is used to compress and expand audio signals. This process is crucial for improving the quality of sound transmission over various media, especially in environments where bandwidth is limited or where signal degradation can occur. The primary function of a compandor is to enhance the dynamic range of audio signals, making quiet sounds more audible while preventing loud sounds from distorting. Understanding how a compandor works requires a basic knowledge of audio processing. When an audio signal is captured, it often contains a wide range of sound levels. For instance, in a recording of a live concert, the sound produced by a soft piano may be significantly quieter than the sound of a drum kit. Without any processing, this disparity can lead to poor audio quality, where softer sounds are lost amidst louder ones. A compandor addresses this issue by compressing the dynamic range during transmission and then expanding it back to its original state upon playback.The compression phase involves reducing the volume of louder sounds and increasing the volume of quieter sounds, effectively 'squeezing' the audio into a smaller range. This is particularly useful in radio broadcasting and mobile communications, where bandwidth is at a premium. By utilizing a compandor, broadcasters can transmit clearer audio without requiring excessive bandwidth. Once the audio reaches its destination, the expansion phase restores the original dynamic range, allowing listeners to experience the full depth and richness of the sound.There are various applications for compandors. In professional audio recording, they are commonly used to ensure that vocal tracks sit well within the mix, providing clarity and presence without overwhelming other instruments. In telecommunications, they help maintain the intelligibility of speech over long distances, especially in noisy environments. Additionally, compandors are employed in hearing aids to assist users in distinguishing between different sound levels, enhancing their listening experience.Despite their benefits, the use of compandors can also introduce challenges. Over-compression can lead to a loss of audio fidelity, making recordings sound flat or lifeless. Therefore, audio engineers must carefully calibrate the settings of a compandor to strike a balance between clarity and dynamic range. This delicate art requires not only technical knowledge but also an understanding of the artistic intent behind the audio being processed.In conclusion, the compandor plays a vital role in modern audio engineering and telecommunications. Its ability to manipulate dynamic range allows for clearer and more efficient sound transmission, benefiting both creators and consumers. As technology continues to evolve, the principles behind compandors will remain integral to the way we experience sound, ensuring that even the quietest notes can be heard without losing the impact of the loudest crescendos. Understanding and mastering the use of a compandor is essential for anyone involved in the fields of audio production or communication technology, as it directly influences the quality and effectiveness of sound delivery.

在技术和电信的世界中，术语compandor指的是一种用于压缩和扩展音频信号的设备或系统。这个过程对于改善通过各种媒体传输的声音质量至关重要，尤其是在带宽有限或信号可能会退化的环境中。compandor的主要功能是增强音频信号的动态范围，使安静的声音更清晰，同时防止响亮的声音失真。理解compandor的工作原理需要对音频处理有基本的了解。当音频信号被捕获时，它通常包含广泛的声音级别。例如，在现场音乐会的录音中，柔和的钢琴声可能比鼓组的声音要安静得多。如果没有任何处理，这种差异可能导致音频质量不佳，较安静的声音在较响的声音中被淹没。compandor通过在传输过程中压缩动态范围，然后在播放时将其恢复到原始状态来解决这个问题。压缩阶段涉及降低响亮声音的音量并增加安静声音的音量，有效地将音频“挤压”到一个较小的范围。这在无线广播和移动通信中尤为有用，因为带宽非常宝贵。通过使用compandor，广播公司可以在不需要过多带宽的情况下传输更清晰的音频。一旦音频到达目的地，扩展阶段会恢复原始的动态范围，使听众能够体验到声音的深度和丰富性。compandor有多种应用。在专业音频录制中，它们通常用于确保人声轨道在混音中良好定位，提供清晰度和存在感，而不会压倒其他乐器。在电信中，它们有助于维持远距离通话中的语言清晰度，尤其是在嘈杂的环境中。此外，compandor还被用于助听器，帮助用户区分不同的声音级别，增强他们的听觉体验。尽管有其好处，使用compandor也可能带来挑战。过度压缩可能导致音频保真度的丧失，使录音听起来平坦或无生气。因此，音频工程师必须仔细校准compandor的设置，以在清晰度和动态范围之间取得平衡。这一微妙的艺术不仅需要技术知识，还需要对音频处理背后的艺术意图的理解。总之，compandor在现代音频工程和电信中扮演着至关重要的角色。它操控动态范围的能力使得声音传输更加清晰和高效，惠及创作者和消费者。随着技术的不断发展，compandor背后的原理将继续在我们体验声音的方式中发挥重要作用，确保即使是最安静的音符也能被听到，而不失去最响亮的高潮的冲击力。理解和掌握compandor的使用对于任何参与音频制作或通信技术领域的人来说都是必不可少的，因为它直接影响声音传递的质量和效果。