PVF to SPH Converter

Convert your pvf files to sph online & free

Select files to convert or drag & drop
100 MB maximum file size. Sign Up
to

How to convert pvf to sph

Step 1

Upload pvf-file(s)

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Step 2

Choose "to sph"

Choose sph or any other format you need as a result (more than 200 formats supported)

Step 3

Download your sph

Let the file convert and you can download your sph file right afterwards

How to convert sph to pvf

pvf

Portable Voice Format

PVF is a special low-bandwidth ADPCM-based digital audio format for recording and storing human speech. A .pvf file contains digitally recorded speech in the PVF format. Such .pvf files were mainly used with legacy voice modems and software-based answering machines. Often, to be used with a specific modem, a .pvf file would have to be converted into the device-specific RMD format. Currently, PVF audio files can still be played with several major media players as well as converted into other formats (like WAV) with multi-format converter tools.

sph

SPeech HEader Resources

SPHERE (SPeech HEader Resources) is a file format defined by NIST (National Institute of Standards and Technology) and is used with speech audio. SoX can read these files when they contain μ-law and PCM data. It will ignore any header information that says the data is compressed using shorten compression and will treat the data as either μ-law or PCM. This will allow SoX and the command line shorten program to be run together using pipes to encompasses the data and then pass the result to SoX for processing.