Audio App

This app supports the playing of audio files within the OVE Framework. It is powered by the Howler.js audio library, so supports the Web Audio API by default and falls back to HTML5 Audio if required. This app is intended to provide a distributed layer on top of the Howler Library.

The Audio App does not display any visible content and will, by default, play audio on all browsers a section covers. You may select where within the section the audio plays by using the setPosition method (implementation pending blocker). Currently supported Audio files include webm, mp3 and sound.wav.

Application State

The state of this app has a format similar to:

    "url": ""

Loading the App

An audio file can be loaded using the OVE APIs:


curl --header "Content-Type: application/json" --request POST --data '{"app": {"url": "http://OVE_APP_AUDIO_HOST:PORT","states": {"load": {"url": ""}}}, "space": "OVE_SPACE", "h": 500, "w": 500, "y": 0, "x": 0}' http://OVE_CORE_HOST:PORT/section


curl --header "Content-Type: application/json" --request POST --data "{\"app\": {\"url\": \"http://OVE_APP_AUDIO_HOST:PORT\", \"states\": {\"load\": {\"url\": \"\"}}}, \"space\": \"OVE_SPACE\", \"h\": 500, \"w\": 500, \"y\": 0, \"x\": 0}" http://OVE_CORE_HOST:PORT/section

Controlling the App

The controller of the app can be loaded by accessing the URL http://OVE_APP_AUDIO_HOST:PORT/control.html?oveSectionId=SECTION_ID.

The app’s API also exposes operations such as play, pause, stop, seekTo and bufferStatus related to playback. Volume may be controlled by operations such as mute, unmute, volUp, volDown. These operations can be executed on a per-section basis or across all sections.

To play audio using OVE APIs:

curl --request POST http://OVE_APP_AUDIO_HOST:PORT/operation/play

Instructions on invoking other operations are available on the API Documentation, http://OVE_APP_AUDIO_HOST:PORT/api-docs#operation.