- Python
- https://github.com/Uberi/speech_recognition
- Google Cloud API – need invite https://cloud.google.com/speech/
- Microsoft Big Voice API https://www.microsoft.com/cognitive-services/en-us/speech-api/
- Amazon
- IBM Watson http://www.ibm.com/ibmwatson/speech-to-text
- CMUSphinx http://cmusphinx.sourceforge.net/wiki/gstreamer