Tagged: sound sensor

primary: make ear muffs for teacher

Noise is sound being a nuisance or causing ear damage but sound proofing against this is difficult. This is because all sorts of materials vibrate and transmit sound. Having sound absorbers, such as carpets and curtains helps to absorb sound. Also ..

monitor classroom noise

A most asked question was ‘what can I use this data logger for?’ My most used answer to this was to use it as a noise meter. When I needed the class to work,...

measure pulse with a sound sensor

You can sense the human pulse cheaply using a sound sensor. While pulse sensors can now be found even in phones, using a sound sensor works too. Hold a sound sensor over where your...

measure the speed of sound

The speed of sound has been measured in so many ways but this version I saw my colleague Ian Galloway* demonstrate perfectly, impressed so I want to pass it on. Split the cable on...

sound sensor & microphone

sound sensor Sound sensors tend to find their use as stand alone noise meters but this misses some interesting uses where sound level changes over time. Just using it as a class noise meter...