OSBH:acoustics
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This Page belongs to the Open Source Bee Hive Project
what for?
Acoustic analysis can be used to determine the health status and mood of the bees.
apidictor patent
frequencies to measure:
- 180-190 Hz ("normal"): healthy bee sound in quiet period (night?)
- ~220-290 Hz ( "warble"): if that sound occurs, queen's rate of egg laying has diminished.
- >3000 Hz ("hiss") : sound occurs by clapping or knocking on the hive.
- short sharp hiss: healthy queen
- sluggish rise in hiss with slow fade: abnormality
interpretation of the sounds
| warble | hiss | interpretion |
|---|---|---|
| yes | sluggish rise and fall, max intensy much less than normal. "at time of issue it has vanished" | swarming activity. possibly noticeable 15 days before swarming. |
| yes | short sharp hiss | age or deformity of the queen |
| yes | on hiss vanishes completly | death or removal of queen |
