# 在字母显示时播放声音

要在游戏中实现打字机音效，你可以订阅打字机的“`OnCharacterVisible`” 事件并根据它播放声音。

该事件会传递一个 “char” 作为参数，因此你也可以根据不同字符播放不同的声音。

*附注：该事件也会在空格触发，因此请根据你偏好的字符类型来播放声音。*

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### 示例包 <a href="#example-package" id="example-package"></a>

作为示例，你可以安装位于 “Extra” 文件夹内的 “TypeWriter Sounds” 包并查看其实现。

![](/files/b51cdece1fcf4544fca530ecf49a5eea5b532894)

<table><thead><tr><th width="221">变量</th><th>说明</th></tr></thead><tbody><tr><td><code>来源</code></td><td>播放声音的主音频源</td></tr><tr><td><code>MinSoundDelay</code></td><td>在播放下一段声音前必须经过的最短时间</td></tr><tr><td><code>中断先前的声音</code></td><td>如果为真，先前的音频将被停止</td></tr><tr><td><code>随机序列</code></td><td>如果为真，下一个要播放的音频剪辑将从 “Sounds” 数组中随机选择。如果为假，声音将按顺序播放</td></tr><tr><td><code>声音</code></td><td>要播放的打字机声音</td></tr></tbody></table>


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