1.8.9 Sounds System Example

Shotgun.java

public void playFireSound() {
  playSound("gun.shotgun.fire");
}

public void playReloadSound() {
  playSound("gun.shotgun.reload");
}

/**
* Play sound
* @param name The name of the sound (not the path to the sound)
*/
public void playSound(final String name) {
  Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(new ResourceLocation(Reference.MOD_ID, name), 1.0F));
}

sounds.json

{
  "gun.shotgun.fire": {
    "sounds":["gun/shotgun/fire"],
    "category": "player"
  },
  "gun.shotgun.reload": {
    "sounds":["gun/shotgun/reload"],
    "category": "player"
  }
}