Download free sample NIST files for testing — NIST SPHERE Audio.
A speech audio format from NIST.
This page provides free sample NIST files you can download for testing, development and learning purposes. Each file is available in different sizes and configurations.
Use these files to test how your software handles NIST files, verify format support, or as placeholder content during development.
A speech audio format from NIST.
Yes, all sample files are free to download and use for testing, development and educational purposes.
Most NIST files can be opened with standard software for their type. Check your operating system's default applications or search for "NIST viewer" for options.
Both options provide the same file. "Download" links to an external source, while "Alternative" downloads from Vai.la servers.
Vai.la turns any URL into a short link with click statistics, QR Code and your own biolink.
Vai.la is not responsible for how the tools are used or for decisions made based on their results.