Sorry.. None of our converters can convert these formats... :(
Sorry! We were unable to find any converter site or software that matches your search: 'convert audio: mp3pro to spx'. We are constantly on the lookout for new converters so please check again later or request that we add this file-format to our service here.
The SPX file format is a compressed audio format designed for speech. It is Open Source thus can be used for free. It compresses voices at 2 to 44 kbps and supports 8 kHz, 16 kHz, and 32 kHz compression in the same bitstream. Learn more about spx