Bouncy Ball Noise Meter
App Bolt Education Contains ads
Bouncy ball noise meter to monitor classroom noise and manage sound levels.
- Downloads
- 16+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Nov 3
- 2026 · v1.0.2
Screenshots
About Bouncy Ball Noise Meter
Bouncy Ball Noise Meter is a visual sound level monitor designed to help teachers, parents, and group leaders manage classroom noise levels. The application listens to ambient sound through your device microphone and turns audio volume into visual motion. When the room is quiet, the balls rest calmly at the bottom of the screen. As room volume increases, the balls bounce higher and more vigorously in direct response to the sound.
How It Works
The bouncy ball noise meter uses real-time audio input to calculate sound intensity. This visual feedback makes noise visible to students, children, and study groups, encouraging them to self-regulate their speaking volume without the need for constant verbal reminders. If the room volume exceeds an acceptable threshold, the app displays a visual Too Noisy alert and can play an optional reminder sound.
Key Features
Real-Time Sound Visualization
Watch colorful balls bounce in direct correlation with room volume. The louder the noise, the higher and faster the balls jump.
Adjustable Microphone Sensitivity
Adjust microphone sensitivity between 0% and 200% to match your specific room environment. Whether you are working in a quiet reading library or an active science laboratory, you can calibrate the meter to respond at the correct volume threshold.
Ball Count Control
Choose how many balls appear on screen, from 25 up to 250 balls. A higher ball count provides a dense, energetic display, while a lower count offers a simple, focused visual.
Multiple Themes
Switch between five built-in visual modes to keep students engaged:
- Plastic: Classic colorful glossy spheres.
- Emoji: Animated faces that roll and turn across the screen.
- Numbers: Numbered balls from 1 to 10 for early learning environments.
- Bubbles: Upward-floating bubbles that pop when tapped on touch screens.
- Eyeballs: Interactive eyes that follow movement across the floor.
Customizable Noise Alerts
Set what happens when the room gets too loud. You can display a prominent Too Noisy message on screen and choose between a gentle shush sound, a beep alert, or completely silent visual alerts.
Interactive Touch and Multi-Touch
In addition to reacting to microphone noise, students can interact directly with the display. Drag, throw, and bounce balls using single-finger or multi-touch gestures on interactive whiteboards, tablets, and phones.
Practical Use Cases
- Classroom Management: Keep student discussions at an appropriate working volume during independent study or group activities.
- Libraries and Reading Rooms: Maintain a peaceful study atmosphere with a subtle visual decibel monitor.
- Homeschool and Homework Time: Teach children the concept of inside voice during study sessions.
- Cafeterias and Play Areas: Help supervisors monitor and moderate peak noise spikes.
Privacy and On-Device Audio Processing
Bouncy Ball Noise Meter processes all audio strictly on your local device in real time. Sound input from the microphone is used solely to measure immediate volume levels and is never recorded, saved to storage, or transmitted across the internet. No account or registration is required.
How It Works
The bouncy ball noise meter uses real-time audio input to calculate sound intensity. This visual feedback makes noise visible to students, children, and study groups, encouraging them to self-regulate their speaking volume without the need for constant verbal reminders. If the room volume exceeds an acceptable threshold, the app displays a visual Too Noisy alert and can play an optional reminder sound.
Key Features
Real-Time Sound Visualization
Watch colorful balls bounce in direct correlation with room volume. The louder the noise, the higher and faster the balls jump.
Adjustable Microphone Sensitivity
Adjust microphone sensitivity between 0% and 200% to match your specific room environment. Whether you are working in a quiet reading library or an active science laboratory, you can calibrate the meter to respond at the correct volume threshold.
Ball Count Control
Choose how many balls appear on screen, from 25 up to 250 balls. A higher ball count provides a dense, energetic display, while a lower count offers a simple, focused visual.
Multiple Themes
Switch between five built-in visual modes to keep students engaged:
- Plastic: Classic colorful glossy spheres.
- Emoji: Animated faces that roll and turn across the screen.
- Numbers: Numbered balls from 1 to 10 for early learning environments.
- Bubbles: Upward-floating bubbles that pop when tapped on touch screens.
- Eyeballs: Interactive eyes that follow movement across the floor.
Customizable Noise Alerts
Set what happens when the room gets too loud. You can display a prominent Too Noisy message on screen and choose between a gentle shush sound, a beep alert, or completely silent visual alerts.
Interactive Touch and Multi-Touch
In addition to reacting to microphone noise, students can interact directly with the display. Drag, throw, and bounce balls using single-finger or multi-touch gestures on interactive whiteboards, tablets, and phones.
Practical Use Cases
- Classroom Management: Keep student discussions at an appropriate working volume during independent study or group activities.
- Libraries and Reading Rooms: Maintain a peaceful study atmosphere with a subtle visual decibel monitor.
- Homeschool and Homework Time: Teach children the concept of inside voice during study sessions.
- Cafeterias and Play Areas: Help supervisors monitor and moderate peak noise spikes.
Privacy and On-Device Audio Processing
Bouncy Ball Noise Meter processes all audio strictly on your local device in real time. Sound input from the microphone is used solely to measure immediate volume levels and is never recorded, saved to storage, or transmitted across the internet. No account or registration is required.