line level

简明释义

线路电平

英英释义

例句

1.The engineer used a line level signal to test the speakers for distortion.

工程师使用线路电平信号测试扬声器是否失真。

2.Many professional audio devices operate at line level for optimal sound quality.

许多专业音频设备在线路电平下运行，以获得最佳音质。

3.To avoid noise, always keep your cables short when working with line level signals.

在处理线路电平信号时，为了避免噪音，始终保持电缆短。

4.When connecting the mixer to the amplifier, make sure the output is set to line level.

在将混音器连接到放大器时，请确保输出设置为线路电平。

5.The audio technician adjusted the volume to ensure the signal was at the correct line level.

音频技术员调整了音量，以确保信号处于正确的线路电平。

作文

In the world of audio engineering, understanding the various levels of audio signals is crucial for achieving high-quality sound. One important term that often comes up in discussions about audio equipment and signal processing is line level. This term refers to the standard voltage level of an audio signal that is suitable for interconnecting different pieces of audio equipment. Generally, a line level signal has a voltage range between 0.316 volts (−10 dBV) and 1.23 volts (+4 dBu), which allows for a strong enough signal to be sent between devices without significant loss of quality.To better understand the significance of line level, it is essential to compare it with other audio signal levels, such as microphone level and speaker level. A microphone level signal is much weaker than a line level signal and typically requires a preamplifier to boost its strength before it can be processed by other audio equipment. On the other hand, a speaker level signal is much stronger than a line level signal and is used to drive the speakers directly. This distinction is vital because using the wrong level of signal can lead to distortion, damage to equipment, or a poor listening experience.When setting up an audio system, knowing how to manage line level signals is critical. For instance, when connecting a mixer to an amplifier, one must ensure that the output of the mixer is at line level so that it can be properly received by the amplifier. If the mixer outputs a microphone level signal, the amplifier may not respond adequately, resulting in low volume or poor sound quality. Conversely, if a speaker level signal is fed into a line level input, it could cause serious damage to the equipment.Another aspect to consider is the difference between balanced and unbalanced line level signals. Balanced signals, which use three conductors, are less susceptible to interference and noise, making them ideal for long cable runs. Unbalanced signals, on the other hand, use two conductors and are more prone to picking up unwanted noise, especially over longer distances. Understanding these differences can help audio engineers make informed decisions about their setups and ensure optimal sound quality.In practical applications, musicians and sound engineers often deal with line level signals when recording or performing live. For example, when a guitarist plugs their electric guitar into an effects pedal, the signal is typically at line level. This allows the effects pedal to process the sound accurately before sending it to an amplifier or mixing console. Similarly, when recording in a studio, microphones capture sound at the microphone level, and those signals are then amplified to line level for further processing.In conclusion, the concept of line level is fundamental in the field of audio engineering. It serves as a bridge between various audio devices, ensuring that signals can be transferred without degradation in quality. By mastering the intricacies of line level signals, audio professionals can create clearer, more dynamic soundscapes, whether in live performances or studio recordings. Understanding this term and its implications will undoubtedly enhance one's ability to work effectively within the audio realm, leading to better sound experiences for both creators and listeners alike.

在音频工程的世界中，理解各种音频信号的水平对于实现高质量的声音至关重要。在关于音频设备和信号处理的讨论中，一个常常出现的重要术语是line level。这个术语指的是适合于不同音频设备之间互连的音频信号的标准电压水平。通常，line level信号的电压范围在0.316伏（−10 dBV）到1.23伏（+4 dBu）之间，这使得信号足够强大，可以在设备之间传输，而不会显著损失质量。为了更好地理解line level的重要性，有必要将其与其他音频信号水平进行比较，例如麦克风水平和扬声器水平。麦克风水平信号远弱于line level信号，通常需要一个前置放大器来增强其强度，然后才能被其他音频设备处理。另一方面，扬声器水平信号比line level信号要强得多，用于直接驱动扬声器。这种区别至关重要，因为使用错误的信号水平可能导致失真、设备损坏或糟糕的听觉体验。在设置音频系统时，了解如何管理line level信号至关重要。例如，当将混音器连接到放大器时，必须确保混音器的输出为line level，以便可以被放大器正确接收。如果混音器输出的是麦克风水平信号，放大器可能无法充分响应，导致音量低或音质差。相反，如果将扬声器水平信号输入到line level输入中，可能会对设备造成严重损害。另一个需要考虑的方面是平衡和非平衡line level信号之间的区别。平衡信号使用三个导体，不易受到干扰和噪声的影响，非常适合长距离电缆传输。非平衡信号则使用两个导体，尤其在长距离传输时更容易受到噪声的影响。理解这些差异可以帮助音频工程师在设置中做出明智的决策，并确保最佳的音质。在实际应用中，音乐家和声音工程师在录音或现场表演时经常处理line level信号。例如，当吉他手将电吉他插入效果踏板时，信号通常处于line level。这使得效果踏板能够准确处理声音，然后将其发送到放大器或混音台。类似地，在录音室录音时，麦克风以麦克风水平捕捉声音，然后将这些信号放大到line level以进行进一步处理。总之，line level的概念在音频工程领域是基础性的。它充当各种音频设备之间的桥梁，确保信号可以无损失地传输。通过掌握line level信号的复杂性，音频专业人士可以创造出更清晰、更具动态感的声音场景，无论是在现场演出还是录音室录制中。理解这个术语及其含义无疑会增强一个人在音频领域内有效工作的能力，从而为创作者和听众带来更好的声音体验。