TOD to SPH Converter
Extract NIST SPHERE audio from JVC TOD camcorder files
Audio Extraction
Pull audio from JVC TOD camcorder recordings into SPH for speech research datasets.
Cloud Conversion
SPH extraction from TOD runs on our servers — no specialized software needed.
Secure Pipeline
TOD uploads are deleted post-processing. SPH output is purged within 24 hours.
How to convert TOD to SPH
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose sph or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your sph file right afterwards
About formats
Frequently Asked Questions
SPH is built for speech research datasets. Extract audio from proprietary TOD into a purpose-built format.
Systems and apps designed for speech research datasets accept SPH as their native audio format.
SPH is a specialized format. SOX and dedicated tools handle it; mainstream players may not.
SPH quality suits its intended purpose. Output depends on the audio quality in your TOD source.
Upload several TOD files and extract SPH audio from each simultaneously.