Ambient sounds is a mod that adds a good amount of new environmental sounds to Minecraft, depending on where we are, whether it is a cave, underwater or in high altitude areas. In addition to these sounds, each time you enter a new biome, new sounds will sound throughout the biome, for example, birds in forest biomes.

This is the total number of biomes that will have new ambient sounds after installing this mod: forests, plains, jungles, oceans, taiga, savannah, hot biomes, frozen biomes, deserts, mesa, swamps and extreme hills. Additionally, we will also have new ambient sounds for the Nether and the End (still in testing).