Content
- Welcome Page
- Order C64 OS
- C64 OS User's Guide
- C64 OS System Updates
- Weblog Full Archive
- Commodore 8-Bit Buyer's Guide
The audio includes a "ticking" sound every second as the frequencies switch, which is intended to prevent rodents from habituating (getting used) to a single tone.
The YouTube video titled is a marathon-length audio track designed to deter rodents through high-frequency sound. Despite the "extreme" branding and millions of views, its effectiveness is a subject of significant scientific and practical debate. Key Features of the "Extreme" Repellent Track The audio includes a "ticking" sound every second
At 11.5 hours , the track is meant to run overnight or during work hours to provide continuous coverage. Critical Limitations and Science Key Features of the "Extreme" Repellent Track At 11
This is the threshold of ultrasound, generally inaudible to most adults but well within the hearing range of mice and rats. Younger humans with sensitive hearing may find these
While the theory suggests these sounds create an "unbearable" environment for pests, real-world results are often underwhelming:
These are technically "high-frequency" rather than ultrasonic (which begins at 20kHz). Younger humans with sensitive hearing may find these frequencies highly irritating or even painful.
The track cycles through 15,000Hz, 17,500Hz, and 20,000Hz .