.SPH File Extension

A .SPH file is a MikuMikuDance Sphere Mapping File, created by NIST.

Open with VideoLAN VLC media player. Available for Linux, Windows, and Mac.

What is a .SPH file?

The .SPH file extension refers to a MikuMikuDance Sphere Mapping File, which is primarily used in the MikuMikuDance (MMD) software for creating animations. These files are not audio files but are used to apply textures to 3D models in a way that simulates reflections and highlights, enhancing the visual appearance of the models in animations.

To open or work with .SPH files, you would typically use the MikuMikuDance program, which is specifically designed for creating and editing MMD animations. This software allows users to apply the sphere mapping contained in .SPH files to 3D models, helping to achieve more realistic or visually interesting effects in the animations.

In addition to MikuMikuDance, other programs that might be able to open or convert .SPH files include Blender with certain plugins or extensions that support MMD files, and PMX Editor, which is used for editing MMD model files.

It's important to note that while .SPH files are used in the context of MMD for visual effects, they are different from SPH files used in speech recognition research, which are audio files in the NIST SPHERE format. These audio SPH files can be opened with audio software like VideoLAN VLC media player, SoX, or FFmpeg, and are used for analyzing or processing speech audio.


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