Approaching Footsteps - Sound Effect

The walking sound effects were generated and recorded using Unity 3D (Unity Technologies, 2020). Free footstep sounds were downloaded from https://freesound.org/ and were split into single files, one file per footstep. A unity script loaded the footstep audio files when a walking animation was executed and synchronised each sound with the animation. A unity scene with an audio reverb zone was created with a maximum distance of 36 metres. An audio listener was located inside the reverb zone which allowed one to gradually change the footstep sound effect as the animation slowly moved closer to the target. The output was generated using the Unity Recorder tool.

本次实验所用的行走音效均通过Unity 3D（Unity Technologies，2020）生成并录制。免费脚步声素材从https://freesound.org/网站下载，并被拆分至单个文件，每个文件对应单次脚步声。当行走动画触发时，Unity脚本会加载脚步声音频文件，并将每段音效与动画实现精准同步。我们创建了一个带有音频混响区域（audio reverb zone）的Unity场景，该区域的最大作用距离为36米。音频监听器（audio listener）被安置在混响区域内部，可在动画缓慢向目标移动时，动态调整脚步声音效的表现。最终输出结果通过Unity Recorder工具生成。