simple-peer - 📡 Simple WebRTC video/voice and data channels

•    Javascript

This module works in the browser with browserify.Note: If you're NOT using browserify, then use the included standalone file simplepeer.min.js. This exports a SimplePeer constructor on window.

phonertc - WebRTC for Cordova apps - No longer active

•    Objective-C

Important Note: Use GitHub issues only for bugs and feature requests! For any other questions, use the StackOverflow forum. Want to learn more? See the wiki.

react-native-voice - :microphone: React Native Voice Recognition library for iOS and Android (Online and Offline Support)

•    Objective-C

A speech-to-text library for React Native. Full example for Android and iOS.

annyang - :speech_balloon: Speech recognition for your site

•    Javascript

A tiny javascript SpeechRecognition library that lets your users control your site with voice commands. annyang has no dependencies, weighs just 2 KB, and is free to use and modify under the MIT license.

NoiseTorch - Real-time microphone noise suppression on Linux.

•    C

NoiseTorch is an easy to use open source application for Linux with PulseAudio or PipeWire. It creates a virtual microphone that suppresses noise, in any application. Use whichever conferencing or VOIP application you like and simply select the NoiseTorch Virtual Microphone as input to torch the sound of your mechanical keyboard, computer fans, trains and the likes. Then simply select NoiseTorch as your microphone in any application. OBS, Mumble, Discord, anywhere.

Simon - Speech Recognition and Dictation System

•    C++

Simon is an open source speech recognition program that can replace your mouse and keyboard. The system is designed to be as flexible as possible and will work with any language or dialect. It is a real dictation system.

holla - An abstraction over P2P video/voice/data connections using WebRTC

•    Javascript

Pipes a WebRTC video stream to a video element. el can be a string (id), jquery element, or dom node.

voice-web - Responsive web, Android and iOS apps for collecting public voice data.

•    TypeScript

This is a web, android and iOS app for collection speech donations for Project Common Voice.[Non-code] Please help us add sentences to read. See issue 341 for details.

twilio-java - A Java library for communicating with the Twilio REST API and generating TwiML.

•    Java

Twilio Java Helper Library

Julius - Large Vocabulary CSR Engine

•    C

"Julius" is a high-performance, two-pass large vocabulary continuous speech recognition (LVCSR) decoder software for speech-related researchers and developers. Based on word N-gram and context-dependent HMM, it can perform almost real-time decoding on most current PCs in 60k word dictation task.

sonus - :speech_balloon: /so.nus/ STT (speech to text) for Node with offline hotword detection

•    Javascript

Sonus lets you quickly and easily add a VUI (Voice User Interface) to any hardware or software project. Just like Alexa, Google Now, and Siri, Sonus is always listening offline for a customizable hotword. Once that hotword is detected your speech is streamed to the cloud recognition service of your choice - then you get the results. Generally, running npm install should suffice. This module however, requires you to install SoX.

Jovo Framework - Build cross-platform voice applications for Amazon Alexa and Google Home

•    Javascript

Jovo is the first open source framework that lets you build voice apps for both Amazon Alexa and Google Assistant with only one code base. Besides cross-platform development, Jovo also offers a variety of integrations and easy prototyping capabilities.

SpeechKITT - 🗣 A flexible GUI for Speech Recognition

•    Javascript

Speech KITT makes it easy to add a GUI to sites using Speech Recognition. Whether you are using annyang, a different library or webkitSpeechRecognition directly, KITT will take care of the GUI. Speech KITT provides a graphical interface for the user to start or stop Speech Recognition and see its current status. It can also help guide the user on how to interact with your site using their voice, providing instructions and sample commands. It can even be used to carry a natural conversation with the user, asking questions the user can answer with his voice, and then asking follow up questions.

Smart Voice

•    DotNet

Smart Voice let's you control Skype using your voice. It allows you to write messages, issue phone calls, etc. This application was developed thinking in cars and was made for a curricular unit at my university. Currently I'm using C#/.NET, Microsoft SAPI and the Skype API.

LyncTalker

A simple tray application which will speak incoming Lync instant messages.

Esendex .NET SDK

Our .NET SDK is an easy way to integrate SMS and Voice messaging into any application built with C#, VB.Net, Managed C++, F# or any other .NET based language.

Kazoo : Yahoo Voice Chat Add On For Yahoo Chat

•    CSharp

Voice chat plug in rewritten in .net and improved

node-zendesk - a zendesk API client library for use with node.js

•    Javascript

Take a look in the examples folder for more examples. If you want to use an OAuth token to authenticate with Zendesk, pass in the oauth key with a value of true when creating the client.

VoiceRipple - Voice Record Button that has ripple effect with users voice

•    Java

The approximated decibel power of the sound is used to animate the button's ripple effect.

stealth - An open source Ruby framework for conversational voice and text chatbots. 🤖

•    Ruby

Stealth is a Ruby based framework for creating conversational (voice & chat) bots. It's design is inspired by Ruby on Rails's philosophy of convention over configuration. It has an MVC architecture with the slight caveat that views are aptly named replies. Stealth is extensible. All service integrations are split out into separate Ruby Gems. Things like analytics and natural language processing (NLP) can be added in as gems as well.