Before you begin processing sound files, download and install SoX.

在开始处理声音文件之前，下载并安装SoX。

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SoX — the Swiss Army knife of sound processing programs — and simple keyword matching will be used to create custom sound files played back upon receipt of E-mail.

将使用SoX(声音处理程序中的佼佼者)以及简单的关键字匹配，创建可以在收到电子邮件时播放的定制声音文件。

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