Open the sensor tools by tapping the sensor icon on the gray toolbar and select the sound intensity icon from the colored bar showing available sensors. To measure or monitor sound intensity, open the app and start an experiment (or open an existing experiment). Use the Sound Intensity Sensor in an Experiment Along with information about sound and the decibel scale, you will find a list of some common sounds, ordered by sound intensity (low to high). ( Note: Sounds also have a frequency or pitch that is measured by a separate sensor.) Tip: For more information about sound intensity, click the "i" next to the sensor reading in the sound intensity sensor card. (In other words, a sound may be recorded as having a very high intensity when you are right next to it, but the intensity will be different if you measure it from farther away.) Keep in mind that distance (how far away you are from a sound) will have an effect on the intensity of the sound that you hear (or your device records). We hear sounds with greater intensity as "louder" than sounds with lower intensity. For example, a chainsaw (100 dB) is much more than twice as loud as moderate rainfall (50 dB). It is important to keep this in mind when thinking about how sounds compare in intensity. This means that for every increase of 10 dB, the sound intensity (or loudness) doubles. Decibels are a logarithmic scale, not a linear scale. The Science Journal app measures sound intensity in decibels (dB). The microphone, which allows you to be heard when you talk to someone using your device, can also be used to monitor and measure sound intensity in your environment (or as part of an experiment). Understanding Sound Intensity and the Decibel ScaleĮxperimenting with sound intensity using the Science Journal app means experimenting using the microphone that is built into the phone or mobile device. In this post, learn more about using the sound intensity sensor in the Science Journal.
#SOUND SIPHON APP HOW TO#
Google's free Science Journal app lets you use sensors on your phone or mobile device (for iOS or Android) to observe and record data as part of an experiment or exploration of the world around you.įor an introduction to the Science Journal app and how to work with sensors in the app (in general), see the first two posts in this tutorial series: The information below may still be valuable as a starting point for working with sensor-based apps, but please refer to your app for specific information about accessing and using sensor tools. Projects and Lesson Plans at Science Buddies that used the app have been revised to use other sensor apps for mobile devices that have similar functionality. Note: The Google Science Journal app is no longer available. Experiment with the sound intensity sensor in the Science Journal app.
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