Convert M4A to SPH online and free
1. Click "Choose Files" button and select your M4A files you would like converted.
2. Click on the “Convert to SPH” button to start the conversion.
3. When the status change to “Done” click the “Download SPH” button
To convert in the opposite direction, click here to convert from SPH to M4A
M4A is an MPEG-4 audio file, primarily used by Apple for music and podcasts. It uses either AAC or Apple Lossless encoding and is widely supported on iTunes and iOS devices. ...
SPH files are NIST SPHERE waveform files used in speech recognition research. They store human speech recordings for training AI models. ...
Upload a M4A file, click "Convert", and use additional options to quickly modify its contents before downloading the final SPH file after processing has completed.
Our M4A to SPH converter works on Windows, Mac OS, Linux, iOS and Android systems alike - our servers automatically process each file without requiring you to install plug-ins or applications!
We guarantee 100% of the privacy and have no access to your files once uploaded/converted, making them inaccessible by anyone and completely protecting them.