Free Online VOX to SPH Converter

Convert VOX files to SPH online for free
VOX
to
SPH

VOX

A headerless file of Dialogic/OKI ADPCM audio data

A headerless file of Dialogic/OKI ADPCM audio data commonly comes with the extension .vox. This ADPCM data has 12-bit precision packed into only 4-bits.

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.
How to Convert VOX to SPH

Step 1: Upload Files

Click the upload button or drag and drop your files into the upload area. We support various file formats for conversion.

Step 2: Select Format

Choose your desired output format from the available options. The conversion will be automatically configured for optimal results.

Step 3: Download

Once the conversion is complete, your converted files will be ready for download. Click the download button to save your files.

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