World Anchors

Goals

• Make the bees buzz, according to relative position to user

5. Let's have some sound

These hives are full of bees, let's make them sound like it.

1. Enable the Spatial plugin by:
   1. Open the menu Edit-Project Settings-Audio
   2. Set Spatializer Plugin to MS HRTF Spatializer
   3. Set System Sample Rate to 48000
2. Download a bee buzzing sound and put it in Assets/Sounds/buzz.wav
   • This sound is courtesy of pillonoise on freesound.org
3. Unity will pick it up and import it
4. Select your Beehive game object
5. Click Add Component and choose Audio Source
   • Note your camera already has the Audio Listener Component
6. Configure the Audio source:
   1. Drag the buzz sound to the Audio Clip
   2. Select Spatialize
   3. Select Play on Awake
   4. Select Loop
   5. Set Spatial Blend to 1
   6. In 3D Sound Settings:
      • Set Volume Rolloff to Logarithmic Rolloff
      • Min Distance to 1
      • Max Distance to 20

Now we're buzzing with excitement!

The effect works best if you're wearing headphones (or the Hololens), but you should be able to tell (without looking at the screen) whether the bees are in front, beside or even behind you. The sound drops off as you move away, and it louder as you get closer - pretty good results for the minimal effort

At this point, it doesn't quite go as far as making it sound like the audio is going around corners or being muffled by doors, but some of this is possible using the Audio Occluder script. For now, we'll leave it as-is.

Next: Voice Input: Control the bees

Prev: Add a beehive