linto-web-client

A full figured LinTO client designed for building custom voice interactions on a webpage.

See demo here : linto.ai

Note : LinTO Web client relies on WebVoiceSDK for handling everything related to audio input, hotword triggers, recordings... See LinTO WebVoiceSDK on NPM for more informations

Note : Any LinTO web client needs to have a token registered towards a LinTO server. See more information in LinTO's official documentation

Note : This library might cause issues (crashes) on your webpage as some browser's implementation of WebAssembly runtimes is still experimental

Usage

With bundler :

npm i @linto.ai/linto-web-client

Static script from CDN :

<script src="https://cdn.jsdelivr.net/gh/linto-ai/linto-web-client@master/dist/linto.min.js"></script>

Test right away :

• Tweak content in tests/index.js (your token, LinTO server endpoint etc)

npm run test

instanciante

try {
  window.linto = await new Linto(
    `${My_linto_stack_domain}/overwatch/local/web/login`,
    `${my_app_token}`,
    `${ms_timeout_delay_for_commands}`
  );
} catch (lintoError) {
  // handle the error
}

Handling errors

This command might throw an error if something bad occurs

Instance user methods

- startAudioAcquisition(true, "linto", 0.99) // Uses hotword built in WebVoiceSDK by name / model / threshold
- startCommandPipeline() // Start to listen to hotwords and binds a publisher for acquired audio when speaking stop
- stopCommandPipeline()
- triggerHotword(dummyHotwordName = "dummy") // Manualy activate a hotword detection, use it when commandPipeline is active.
- pauseAudioAcquisition()
- resumeAudioAcquisition()
- stopAudioAcquisition()
- startStreaming(metadata = 1) // Tries to initiate a streaming transcription session with your LinTO server. The LinTO server needs a streaming skill and a streaming STT service
- stopStreaming()
- login() // Main startup command to initiate connexion towards your LinTO server
- loggout()
- say("blahblah") // Use browser text to speech
- ask("blahblah ?") // Uses browser text to speech and immediatly triggers hotword when audiosynthesis is complete

Instance events

Use events with :

linto.addEventListener("event_name", customHandlingFunction);

Available events :

• "mqtt_connect"
• "mqtt_connect_fail"
• "mqtt_error"
• "mqtt_disconnect"
• "speaking_on"
• "speaking_off"
• "command_acquired"
• "command_published"
• "command_timeout"
• "hotword_on"
• "say_feedback_from_skill"
• "ask_feedback_from_skill"
• "streaming_start"
• "streaming_chunk"
• "streaming_final"
• "streaming_fail"
• "custom_action_from_skill"

NOTE : See proposed implementation in ./tests/index.js