Online SPH Converter
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What is a SPH file?
SPH is a file format used to store speech data, often in conjunction with the SPHERE header developed by the National Institute of Standards and Technology (NIST). It's commonly used in speech research and linguistic studies.
SPH files usually contain uncompressed PCM audio and can be found in academic speech corpora like TIMIT and Switchboard.
How to open SPH files
SPH files can be opened with SoX, Audacity (with plugin), and NIST’s own SPHERE tools. They are common in speech databases and research projects.
To share or play them easily, convert SPH to WAV or MP3 using AnyConv online.
Key facts about SPH
- Full name: NIST SPHERE Audio File
- Extension: .sph
- MIME type: audio/x-nist
- Developed by: NIST
- Initial release: 1992
Useful links and resources
Convert from SPH
Quickly turn your SPH files into any format you need
❓ Frequently Asked Questions
Answers to common questions about SPH
- Do I need to install software to convert SPH files?No extra software is required. Just upload your SPH files to AnyConv, we’ll convert them on our servers, and you can download the finished file right away.
- Can I use SPH converter on my phone or tablet?Yes, you can convert SPH files on any device - including phones and tablets. AnyConv works perfectly on mobile.
- Is it safe to convert SPH files with AnyConv?Yes, converting SPH files with AnyConv is secure. All files are automatically deleted after conversion and never shared.
- Can I convert multiple SPH files at once?Yes, our converter supports batch processing. You can upload several SPH files and convert them all at once.