立体混响声是一种音频,它提供可以完全环绕听众的声音表示。它可为遥远环境声音提供音频天空盒,尤其适用于 360 度视频和应用程序。
立体混响声以多声道格式存储。立体混响声以更加通用的方法来表示声场,而不是将每个声道映射到特定扬声器。您可以根据听者的方向(例如 VR 中用户的头部旋转)旋转声场。您还可以将声场解码为与扬声器设置相匹配的格式。
To select an ambisonic audio decoder in your project, open your project’s Audio settings (menu: Edit > Project Settings > Audio). Select an Ambisonic Decoder Plugin from the list of available decoders in the project.
There are no built-in decoders included with Unity, but you can do one of the following options:
You can create your own ambisonic audio decoder plug-in. For more information, refer to Ambisonic Audio Decoder.
Use external decoders. For instance, some VR hardware manufacturers provide them in their audio SDKs for Unity. Check your target platform manufacturer’s documentation to learn if this is available for your project.
要导入立体混响声音频剪辑,请导入多声道 B 格式 WAV 文件(按照 ACN 组件排序并采用 SN3D 标准化)。在音频剪辑的 Inspector 窗口中,启用 Ambisonic。
要通过音频源播放立体混响声音频剪辑:
在 Unity 播放立体混响声剪辑时,会解压缩文件(如果需要),然后通过立体混响声解码器解码以将其转换为项目的选定扬声器模式。然后应用音频源的效果。
注意: 立体混响声音频剪辑的混响区会被禁用。
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