About Voicegain Platform

Voicegain provides a Speech-to-Text Platform built around a Deep Neural Network ASR engine. Voicegain Speech-to-Text supports:

• open vocabulary speech transcription (real-time and off-line) and
• speech recognition (using context-free grammars). Both are accessible via Web API. In addition, the recognizer is available with MRCP interface.

Apart from bare-bones speech recognition we provide other APIs that build on top of that:

• Telephone Bot API - it is a callback api suitable to building IVRs and Voicebots
• Speech Analytics API

Voicegain Platform is accessible in the Cloud and can also be deployed at the Edge (on-prem Edge Computing).

What is available in this Github repository

Public information

This repository tracks public components of the Voicegain Platform. Things like:

• announcements,
• release notes,
• terms of service,
• privacy policy, etc.

Source code

Repository also provides a lot of useful code:

• example code - we have examples of:
  • RTP streaming for real-time transcription or recognition
  • simple python scripts illustrating use of various APIs
  • sample node.js web applications illustrating:
    • use of grammars for commands
    • real-time transcription from microphone
    • offline transcription of uploaded files
  • scripts illustrating real-time transcription of Twilio Media Stream
  • AWS lambda script for a Voicebot - this uses RASA and Voicegain Telephone Bot API - both node.js and python versions are available
  • AWS lambda script for a Voicebot using Twilio - this is similar to the bot above but uses normal Voicegain Speech-to-Text API together with Twilio Streams - it is quite a bit more complex
  • websocket streaming example in Java - it send audio over websocket and receives real-time transcript result over websocket
• declarative ivr - Declarative IVR is a way to specify a complete IVR flow using a simple yaml file. The yaml file gets interpreted by a Lambda fuction and uses Voicegain Telephone Bot API to hear and talk over the phone. Included is a yam file for a simple outbound survey IVR application.
• utilities:
  • test-transcribe.py - takes audio files from a directory and runs it through Voicegain and Google speech-to-text - if reference transcripts are available it will report WER for both
• audio-sender bootstrap bundle - this is for Live Transcription. Normally you would download it via the Web Console. Here is Zendesk help article which describes the whole process.

How-To Guides

• Deploy Voicegain into AWS

You can learn more about Voicegain at our main website. BTW, we are offering a generous free tier that renews each month so Signup Now.

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