STT API

URIs:
  http://api.privox.io/stt
    Legacy API which does not require SSL. 

  https://secure.privox.io/stt
    Secure API which require SSL, TLS 1.2 or better. 

Post Variables:
  Required:
    key - a valid user key.
    file - a wav file or zip file containing a wav file.

  Optional:
    quality - one of {fast, normal, better, best, xcribe or xcribe2}.
    language - defaults to 'en'.
    engine - currently ignored.

  Examples:

    curl -X POST -F "file=@sample.wav" -F "quality=fast" -F "language=en" -F "key=XXX" api.privox.io/stt
      Note: specify language if 'en' for faster more accurate recognition.

    date;curl -X POST -F "file=@sample.wav" -F "quality=fast" -F "key=XXX" api.privox.io/stt;date
      Note: measure API transcription time.

    zip sample.zip sample.wav;curl -X POST -F "file=@sample.zip" -F "quality=fast" -F "key=XXX" api.privox.io/stt
      Note: compress file before sending (recommended).

TTS API

URIs:
  http://api.privox.io/tts
    Legacy API which does not require SSL. 

  https://secure.privox.io/tts
    Secure API which require SSL, TLS 1.2 or better. 

Post Variables:
  Required:
    key - a valid user key.
    text - an utterance to be converted to an audio wav file.

  Optional:
    voice - one of {voice1 or voice2}.
    language - defaults to 'en'.
    engine - currently ignored.

  Examples:

    curl -X POST http://api.privox.io/tts -H "Content-Type: application/x-www-form-urlencoded" -d "key=XXX&text=testing one two three" > junk.wav;aplay junk.wav

See also the PriVox Repository for more detailed information and coding examples.