Convert audio and texture files (SPH) online for free
The converter easily converts your SPH files to various formats - free and online. No MikuMikuDance or or other Audio software needed.
To convert other file formats to the "Speech Corpus Audio File" file type, you need software like MikuMikuDance or a similar tool.
The .SPH file extension typically represents a NIST SPHERE audio file (SPeech HEader REsources). Developed by NIST for acoustic and speech recognition research, this format wraps raw audio data with a plain-text ASCII header. While excellent for academic archiving, .SPH files are practically useless for general consumers. Standard media players, mobile devices, and modern web browsers cannot read the custom header, resulting in playback failures. To listen to these files, you must strip or bypass the header by converting the audio data to a universally supported format like WAV or MP3.
Another common use for .SPH is as a Sphere Map Texture Image for MikuMikuDance (MMD). In this context, the file is usually a disguised BMP or PNG image used to simulate reflections on 3D models. Because the extension is changed to .SPH, standard image viewers will reject it unless renamed or converted.
Conversion Recommendations:
* For audio playback: Convert NIST SPHERE files to WAV (lossless) for editing or MP3 (lossy) for web and mobile streaming.
* For 3D textures: Convert MMD .SPH files to standard PNG or JPG to edit them in standard raster graphics software.
* For other uses: .SPH is also rarely used by Sciemetric InspeXion (as XML data) and Scrapbook Factory. Drop your file here to analyze and convert it securely right in your browser.
Use Convert.Guru to open and convert your SPH file.
Users also converted SHP, SPA, ZIP, WEM, M4A, PCM and WAV files.
If you want to convert SPH file to JPG, PDF, PNG, BMP, TIFF, TIF, ICO, CUR or PSD, you can use MikuMikuDance or similar software from the "Speech Audio and Texture Mapping" category. In the File menu, look for Save As… or Export….
To convert RAW, PNG, AI, NEF, PSB, DNG, SVG, GIF, EPS, JPG, ARW or PDF files to SPH, try MikuMikuDance or another comparable tool in the "Speech Audio and Texture Mapping" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SPH converter.