Placing, and configuring speakers
Speakers are blocks/skulls that play spatial audio in your world. They can be placed anywhere in your world, and can be used to play music or sound effects.
Speakers make use of skulls, which may not work properly in servers running either "offline mode" or "cracked", you must have
online-modeset to true in your server.properties unless you're running a proxy.
The speaker sub-command will give a new speaker in your inventory with the default settings. You can change the settings by right-clicking the speaker once its placed.
To get a speaker, run the command
/openaudiomc speaker <media source>.
Speakers can be configured by right-clicking them. From there you can change the radius, as well as some behavior settings.
Speakers can be activated by Redstone, and can be configured to play a sound when activated.
Speaker items retain their source after being broken, and can safely be stored in chests. To get a speaker back, simply break it and pick it up. Note that speakers cannot be crafted, and players still require the appropriate permissions to place, break and edit speakers.