SPH to WAV Converter
Select files for conversion or just drag and drop them to the upload area
How to convert SPH files to WAV online?
Step 1.
Upload SPH-file
Click "Choose File" button to select a sph file on your computer. SPH file size can be up to 50 Mb.
Step 2.
Convert SPH to WAV
Click "Convert" button to start conversion.
Step 3.
Download your WAV
When the conversion process is complete, you can download the WAV file.
Information about SPH and WAV file formats
| Name | SPH | WAV |
| Full name | NIST SPHERE Audio File | WAV - Waveform Audio File Format |
| File extension | .sph | .wav .wave |
| MIME type | audio/vnd.wave, audio/wav, audio/wave, audio/x-wav | |
| Developed by | Institute of Standards and Technology (NIST) | Microsoft & IBM |
| Type of format | audio file format, container format | |
| Description | Waveform audio file created in the NIST SPHERE format, which is often used in speech recognition research; often contains a recording of a person speaking; can be provided as input to speech recognition systems. | Waveform Audio File Format is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format. |
| Technical details | Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse code modulation (LPCM) format. Audio in WAV files can be encoded in a variety of audio coding formats, such as GSM or MP3, to reduce the file size. | |
| File conversion | SPH conversion | WAV conversion |
| Associated programs | SoX | ALLPlayer, VLC media player, Media Player Classic, MPlayer, RealPlayer, Winamp. |
| Wiki | https://www.nist.gov/ | https://en.wikipedia.org/wiki/WAV |