SPH files contain audio recordings, often of speech. They have a human-readable header using ASCII text. SPH files use 16-bit PCM encoding at 16KHz sample rate. To play SPH files, convert them to WAV ...
SPH files contain audio recordings, often of speech. They have a human-readable header using ASCII text. SPH files use 16-bit PCM encoding at 16KHz sample rate. To play SPH files, convert them to WAV using sph_convert utility or SoX. SPH files are uncommon so most media players cannot play them. We explain what SPH files are and how to open or convert them. Ribbons software displays molecular models and creates images. It uses SPH for data files. HTK toolkit builds speech recognition systems. It uses SPHERE library to manipulate speech file headers. MikuMikuDance game uses SPH for 3D model effects. SPH files can have transparency like PNG images. To create, edit BMP images and rename to SPH. Update your software to open SPH files. Click SPH files twice for Windows to find opening programs. Convert to supported format if unable to open.
NIST SPHERE Software
Audacity