Drop file here. 150 MB maximum file size.
An SPH file is an audio file created in the NIST SPHERE format, which is often used in searching speech recognition. Usually contains the apos; recording of apos; a person who speaks. The SPH files can be provided as voice-recognition system entries.
Audio file extracted from a CD formatted with the help of the Digital Audio CD specification; can be extracted at the same time; help from appos; applications such as iTunes or Logic Pro; used to save audio CD data to a computer, as well as to burn new CDs.
Access powerful and secure free online SPH tools to convert, view, edit, merge, split, and compare SPH files β all without installing any software. Our tools support the .SPH (NIST SPHERE Audio File) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your SPH files directly from your device with ease.
Chose or drag & drop your SPH file, click Convert to CDDA, and download the CDDA file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert SPH to CDDA in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert SPH to 100s of file formats, without any limit, registration and downloading, 100% free and online SPH converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
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