audacity音轨加伴奏_如何在Audacity中使用Crossfade进行音轨之间的无缝过渡

audacity音轨加伴奏

Switching tracks suddenly in your audio/video projects can be really jarring for the audience. Crossfades can help make natural-sounding transitions between audio tracks, and you can really take advantage of them if you know a little about how sound works.

在音频/视频项目中突然切换曲目可能会给观众造成很大的困扰。 交叉淡入淡出可以帮助在音轨之间进行自然听起来的过渡，如果您对声音的工作原理有所了解，则可以真正利用它们。

什么是交叉淡入淡出？ (What is a Crossfade?)

Odds are you know what a fade is, though maybe not by name. When an audio track starts with silence and the volume rises up out of nowhere, that’s called a “fade-in.” When a track slowly lowers its volume until it’s nothing but silence, it’s called a “fade-out.” How “sharp” a fade is directly involves how much volume is lost or gained over what period of time. Sharper fades happen quickly while duller or steadier fades take a long time. This is what a fade-out looks like visually:

奇怪的是，您知道什么是淡入淡出，尽管也许不是名字。 当音轨以静默开始并且音量突然升高时，这称为“淡入”。 当轨道缓慢降低音量直到无声无息时，就称为“淡出”。 衰减的“锐度”程度直接涉及在什么时间段内丢失或获得多少音量。 较清晰的渐变会很快发生，而较暗或较稳定的渐变则需要较长时间。 这是淡入视觉效果：

A fade-in looks similar.

淡入外观类似。

A crossfade is essentially doing both simultaneously to two separate tracks. The first track slowly fades out and the second fades in, but instead of there being silence in between, it happens concurrently. It usually sounds like you opened the door to another room with different music, then went through it and closed the door behind you.

交叉淡入淡出实际上是同时对两个单独的音轨进行。 第一首曲目逐渐淡出，第二首曲目逐渐淡入，但它之间并没有发生沉默，而是同时发生。 听起来通常是您打开了另一间带有不同音乐的房间的门，然后穿过它又关上了身后的门。

为什么有用？ (Why is it Useful?)

Many songs use fading techniques to great effect when starting or ending, or at particular parts in the song. The same goes for video; it’s useful to be able to fade in to a crowd’s cheer, or fade out of an origi