Online SPH Converter

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Information about SPH file format

Name SPH
Full name NIST SPHERE Audio File
File extension .sph
MIME type
Developed by Institute of Standards and Technology (NIST)
Type of format
Description Waveform audio file created in the NIST SPHERE format, which is often used in speech recognition research; often contains a recording of a person speaking; can be provided as input to speech recognition systems.
Technical details
Associated programs SoX
Convert from SPH
Convert to SPH


    👍 What is the best SPH converter?
    AnyConv. Our SPH converter is fast, free and does not require software installation.
    🔺 How to convert Audio files to SPH?
    Choose files and upload them on the page. Select "to SPH" and click "Convert". After a few seconds, you can download SPH files.
    🔻 How do i change SPH to another format?
    Upload your SPH-file on the page. Select target format and click "Convert". SPH conversion takes a few seconds.
    📱 Can I use SPH converter on iPhone or iPad?
    Yes, you can convert SPH files from iPhone, iPad and other mobile devices, because AnyConv SPH Converter is a multi-platform web service.