node-red-node-ui-microphone

    0.3.1 • Public • Published

    node-red-node-ui-microphone

    A Node-RED UI widget node that allows audio to be recorded and allows speech recognition from the dashboard.

    Install

    Either use the Editor - Menu - Manage Palette - Install option, or run the following command in your Node-RED user directory (typically ~/.node-red) after installing node-red-dashboard:

        npm i node-red-node-ui-microphone
    

    Usage

    The node provides a single button that, when clicked, will begin to capture audio.

    This node provides a single button widget in the dashboard that, when pressed, will begin to capture audio or speech recognition. The button can be configured in two modes for audio capture mode.

    • Click begins to capture audio, and then continues to capture audio until the button is pressed again, or it reaches its configured maximum duration.
    • Or the button can be configured to record only while the button is pressed.

    For audio capture mode, the audio is captured in WAV format and published by the node as a Buffer object. This can be written straight to a file or passed to any other node that expects audio data.

    Browser Support

    For audio capture mode, this node will work in most modern browsers as it uses the standard MediaRecorder API.

    • IE : not supported
    • Safari : MediaRecorder needs to be enabled (Develop -> Experimental Features -> MediaRecorder)

    For speech recognition mode, this node will work in more restricted browsers as it uses SpeechRecognition API.

    • IE, Safari : not supported
    • Firefox : SpeechRecognition needs to be enabled (about:config -> media.webspeech.recognition.enable).
    • Chrome : Supported

    If you are accessing the dashboard remotely (not via localhost), then you must use HTTPS otherwise the browser will block access to the microphone.

    Privacy

    When the button is first pressed, the browser will ask the user's permission for the page to access the microphone. The node cannot record audio until the user has given their permission.

    Notices

    This node uses recorderWorker.js Copyright © 2013 Matt Diamond, under the MIT License

    Example

    See examples under Node-RED editor menu of Import/Examples/node-red-node-ui-microphone.

    Install

    npm i node-red-node-ui-microphone

    DownloadsWeekly Downloads

    891

    Version

    0.3.1

    License

    Apache-2.0

    Unpacked Size

    56 kB

    Total Files

    12

    Last publish

    Collaborators

    • knolleary
    • dceejay