TYPE	VERSION	STATUS	COVERAGE
demo	demo
vui-core	core
addon-android-speech	addon
addon-google-speech	addon
addon-amazon-speech	addon

This library combines both native built-in resources and cloud services into a component capable to run reliably and seamlessly a Speech Synthesizer and a Voice Recognizer.

It enables currently the following providers:

• Built-in Android (@FranRiadigos)
  • TextToSpeech
  • SpeechRecognizer
• Google Cloud (@FranRiadigos)
  • Text-To-Speech
  • Speech-To-Text
• Amazon (@xvelx)
  • Polly
  • Transcribe

Other providers you can contribute with are:

• Microsoft Azure
• Watson (IBM)
• Wit.ai
• Temi

Why choosing this library?

Apart from the above mentioned, it also helps you when:

• some devices don't have configured the resources you need to run a conversation in your app
• a developer needs to learn and test quite a lot before even to start coding for voice capabilities
• noise is impacting considerably the communication
• oldest android components force you to create a lot of boilerplate
• some countries don't allow Google Services

Prerequisites

The SDK works on Android version 5.0 (Lollipop) and above. (for lower versions contact us)

Dependencies

repositories { // Optional. Access to early versions not yet published.
maven { url "https://dl.bintray.com/chattylabs/maven" }
}
dependencies {
// Required
implementation 'chattylabs:vui-core:<latest version>'
// You can either use only one or combine addons
// i.e. Use voice Synthesizer from Google and SpeechRecognizer from Android
implementation 'chattylabs:addon-android-speech:<latest version>'
implementation 'chattylabs:addon-google-speech:<latest version>'
}

How to create a Conversation?

You can use the component at any Context level, both in an Activity and a Service.
You will create a set of VoiceNode objects, add them into the graph and build a flow.

// Get the Component via default providerval component =ConversationalFlow.provide(...)
// Setup the Addons to use (typically done in your Application class)
component.updateConfiguration(builder ->
builder .setRecognizerServiceType(() ->AndroidSpeechRecognizer.class)
.setSynthesizerServiceType(() ->AndroidSpeechSynthesizer.class)
.build())
// To record from the mic you have to request the permissionsval perms = component.requiredPermissions()
// requestPermissions(perms)// You should check if the addons are available
component.checkSpeechSynthesizerStatus(...)
val conversation:Conversation= component.create(context)
val question:VoiceMessage=...
val answers:VoiceMatch=...
with(conversation) {
addNode(question)
addNode(answers)
with(prepare()) {
from(question).to(answers)
}
start(question)
}

There are different Voice Nodes and Configurations, check the wiki page