HTK to SPH Converter

Convert your htk files to sph online & free

Audio Converter

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Drop files here. 100 MB maximum file size or Sign Up

Convert to HTK

htk

HTK

Single channel 16-bit PCM format used by HTK, a toolkit for building Hidden Markov Model speech processing tools

SPH Converter

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 HTK to SPH

Step 1

Upload htk-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