mod_google_transcribe

A Freeswitch module that generates real-time transcriptions on a Freeswitch channel by using Google's Speech-to-Text API.

API

The freeswitch module exposes the following API commands:

uuid_google_transcribe <uuid> start <lang-code> [interim]

Attaches media bug to channel and performs streaming recognize request.

uuid - unique identifier of Freeswitch channel
lang-code - a valid Google language code to use for speech recognition
interim - If the 'interim' keyword is present then both interim and final transcription results will be returned; otherwise only final transcriptions will be returned

uuid_google_transcribe <uuid> stop

Stop transcription on the channel.

google_transcribe::transcription - returns an interim or final transcription. The event contains a JSON body describing the transcription result:

{
	"stability": 0,
	"is_final": true,
	"alternatives": [{
		"confidence": 0.96471,
		"transcript": "Donny was a good bowler, and a good man"
	}]
}

When using drachtio-fsrmf, you can access this API command via the api method on the 'endpoint' object.

ep.api('uuid_google_transcribe', `${ep.uuid} start en-US`);