Currently the Bumblezone is pretty quiet, and it has no specific ambience. I've been doing some experiments with the AmbientSounds mod to add some background ambience to the Bumblezone, and I think it adds a lot!
{
"name": "bumblezone",
"dimension-names": [ "the_bumblezone", "bumblezone" ],
"biome-selector": {
"always": false
},
"regions": [
{
"name": "hive",
"volume": 0.08,
"sounds": [
{
"name": "hive-ambience",
"files": [ "ambientsounds:animals.hive-ambience" ],
"outside": true
}
]
},
{
"name": "hive-walls",
"volume": 0.02,
"sounds": [
{
"name": "hive-walls-ambience",
"files": [ "ambientsounds:animals.hive-ambience" ],
"outside": false
}
]
}
]
}
Basically, the sound is much more intense the more 'outside' you are, and gets quieter (but never below 0.02) if you tunnel deep into the walls.
I presume there's a way to integrate this directly into the mod proper, but I don't know enough about the Forge APIs and how other dimensions set up their background ambience to make a pull request myself. If you use to use that particular clip, you'd need to run it by the video uploader before redistributing it first, too: https://www.youtube.com/channel/UCYCmal9NJFAJqPzJXkPkcpQ
(Though there are probably lots of similar videos if permissions are problematic.)