SPH to IMA Converter
Convert your sph files to ima online & free
How to convert sph to ima
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to ima"
Choose ima or any other format you need as a result (more than 200 formats supported)
Download your ima
Let the file convert and you can download your ima file right afterwards
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.
A headerless file of IMA ADPCM audio data
A headerless file of IMA ADPCM audio data. IMA ADPCM claims 16-bit precision packed into only 4 bits, but in fact sounds no better than .vox.