Acoustic Solutions - Ultrasound
Ultrasound systems continuously emit high frequency sound waves, which are inaudible to the human ear but intensely irritating for birds. TONI's professional systems combine ultrasound with low-frequency infrasound for maximum effectiveness in bird deterrence.
Important characteristics of ultrasound systems
- Ultrasound systems consist of one or more speakers placed inconspicuously on a building or other structure to protect it in its entirety.
- Though humans cannot hear it, birds perceive the sound as physical pressure - intensely irritating, but not painful or dangerous.
- Acoustic pressure systems are suitable for low to medium populations of birds.
- For the professional use, there are various ultrasound devices with differing effective radiuses. Acoustic pressure systems are quite small and can be hidden well on a building.
Available ultrasound devices
Ultrasound device TF2
Ultrasound device TF3
Ultrasound device TF4
Ultrasound device TF5
Pros
- Much less conspicuous than physical bird deterrents.
- Can be installed nearly anywhere
- Protects large areas
- Inaudible to humans
- Not dangerous to birds or humans
Cons
- Habituation possible
- Effect range of each speaker limited to ca. 10-18m
- Corners, ledges, etc. can cast a "sound shadow," reducing overall efficacy.
- The setting up of devices requires ornithological knowledge.