You can use it to record, edit and mix multi-track audio.

你可以使用它来录制，编辑和混合多声道音频。

youdao

The merging method of multi-track audio in the audio editor is discussed.

讨论了在音频编辑器中实现多轨音频合并的方法。

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You can add fading effects, where the audio track gradually gets louder or quieter, or you can add special sound effects of all kinds.

您可以添加淡入淡出效果，使音频音轨的声音逐渐变大或变小，您还可以添加所有此类的特殊音效。

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"Even though I'm blind I love to go see movies. Some theaters have these transmitters that you can check out at the front desk where you buy your tickets, and there is an audio track that provides description for the movies.

VOA: special.2010.03.01

Redmond has also added audio waveforms and an extra narration track, simple audio cleanup tools and text effects to the video editor.

ENGADGET: Windows Photo Gallery and Movie Maker refresh: Vimeo integration, camera stabilization

But Coulton might have legal footing if the show used Coulton's audio track.

CNN: Singer alleges 'Glee' ripped off his cover song

Somewhat annoying was a message embedded in each audio track and a pop-up urging us to go to sign up for a "free lifetime account" to a much more content-rich Internet course.

WSJ: Mobile Apps for Foreign Languages