M4R to SPH Converter
Convert your m4r files to sph online & free
MPEG 4 Ringtones Audio
SPeech HEader Resources
How to convert M4R to SPH
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to sph"
Choose sph or any other format you need as a result (more than 200 formats supported)
Download your sph
Let the file convert and you can download your sph file right afterwards