Line level is the specified strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, television sets, audio amplifiers, and mixing consoles. Generally, line level signals sit in the middle …

2019年6月26日 · Line Level 是即使沒經過放大，也依然很強的訊號，又分為 Consumer 及 Professional 兩個種類，Consumer 是在 -10dBV 左右，像是 CD 播放器上會出現的訊號；而 Professional 則是在 +4dBu 左右，可在混音器工作台上、前級放大器以及訊號處理裝置上看見。

2023年6月18日 · Line level is the loudest signal we handle in audio. In terms of voltage, it comes in at approximately 1 volt, or 0 dBV. Line level usually flows through the system after the preamp stage and before the output to our speakers. Line level directly correlates to mic level. We have to boost mic level up to line level for recording and playback.

2018年6月1日 · Line level is the standard signal strength at which most audio equipment is designed to operate. Lower-level microphone and instrument signals must be brought up to line level with a preamp before interfacing with most equipment. These line level signals are then further amplified to drive speakers and headphones for playback.

Microphones and instruments output very low signal voltages, while +4dBu is the line level is the standard voltage level for professional audio equipment. In pro audio, you’ll generally be dealing with four types of audio signals: Mic Level, Instrument Level, Line Level, and Speaker Level

2025年3月10日 · Line level signals vary depending on the type of audio equipment, but they usually hover around +4 dBu for professional equipment and -10 dBV for consumer equipment. In simple terms, line level is the signal strength used to connect various audio devices such as mixers, amplifiers, and effects processors.

2023年5月8日 · Line level is the standard signal strength used for connecting audio devices and maintaining audio quality. There are two main line-level standards: consumer line level (-10 dBV) and professional line level (+4 dBu). Different line level connectors include RCA, 1/4-inch TRS, and XLR connectors, each with its specific applications.

2023年11月13日 · What is line level and instrument level? Learn what these mean in this guide, including the differences between mic and line level and how to use them to get the best recordings.

话筒电平或话筒电平信号是有人讲话时从麦克风输出的的电平信号，通常仅为千分之一伏特。 当然，该电压会根据语音水平以及讲话人与话筒之间的距离而变化。 但是信号仍然很小。 线路电平的范围在0dBV (1.000V). 线路电平信号大约电平信号在1V，或大约1,000倍的话筒电平。 将麦克风连接到线路电平输入将几乎没有声音，因为话筒信号微弱，线路输入无法听到。 将线路电平源（例如混音器输出）连接到话筒电平输入将导致声音很大且失真，因为线路信号要比话筒输入所接受 …

音乐播放里，如何理解 line level 接口 和 headphone 接口的原理和区别? 音乐播放器有两个接口，一个是 line in/out 接音响，一个是headphone 接耳机。 我发现line in也可以接耳机，声音更大些。