NVF Tools

NVFTools is a set of utilities for converting Nomad II Voice Format (NVF) files as found on Creative Nomad II, IIc and II MG MP3 players to and from standard audio file formats. It is made up of the tools nvfconvert, nvfrawconvert, and nvfplay. While these tools have been written for Linux, it should be straightforward to port them to any operating system supported by the audiofile library.

convert an NVF file to or from an AIFF, AIFC, WAVE, AU or raw audio file
convert an NVF file to or from a raw audio file or stream
plays the given NVF file to the Linux OSS compliant audio hardware

NVF files are Creative's proprietary file format for voice files on their Nomad II series MP3 players. The format is a simple header followed by G.721 8kHz mono 32kbit/sec ADPCM audio data. The main support for converting these files was done by adding support for G.726 compression (a compression set containing G.721) to the audiofile library. As these changes have not been incorporated into the main branch, you will need a custom version of the library.

The source code for the library and RPMs for Red Hat 7.1 & 7.2 can be found in the project SourceForge files area. Please also see the SourceForge Project for news, mailing lists and more detailed documentation.

Related links:

Report bugs to <nvftools-devel@lists.sourceforge.net>
© 2002 Tom Mander <mailto:tom@who.net>

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