classroom countdown timers and I've shared noise meters, but until today I haven't found timer and noise meter in one package. Zero Noise Classroom provides a countdown timer and a noise meter into one convenient Chrome app.
When you launch Zero Noise Classroom you can set the countdown timer and adjust the goal for the volume of noise in your classroom. You will also set a goal for a percentage of the time that can exceed the maximum volume. When the countdown timer expires a chime sounds and the percentage of time above the volume limit is displayed.
Applications for Education
The idea behind Zero Noise Classroom is to give your students a specific amount of time during which you want the noise in the classroom to be below a certain level. This could be for silent reading time in your classroom or just a silent minute for everyone to think before responding to a question. You could also use it to just time an activity and not worry about the noise level at all.