resourcepack.sound.load_on_low_memory
It is best, when using multiple sound, to mark one of them with `load_on_low_memory': true, and the others to false, this will reduce the amount of memory needed for lower tier devices
"fx_foo": {
"category": "neutral",
"sounds": [
{ "load_on_low_memory": true, "name": "sounds/fx/foo1" },
{ "load_on_low_memory": false, "name": "sounds/fx/foo2" },
{ "load_on_low_memory": false, "name": "sounds/fx/foo3" },
{ "load_on_low_memory": false, "name": "sounds/fx/foo4" },
]
}