Measure Pitch with Google’s Science Journal App

Measure Pitch with Google’s Science Journal App


You can use Google’s Science Journal to
measure sound pitch, or frequency, using your phone’s built-in microphone. Open an experiment, then open the pitch sensor
by swiping up on the gray toolbar in the middle of the screen, and tapping the sensor icon. Then select the musical note icon from the
bar of available sensors. If you don’t see the musical note at first,
you might have to scroll sideways to find it. You can now measure sound pitch in hertz,
or the sound’s rate of vibration. Tap the “i” icon to learn more about these
units. The app will display both the instantaneous
reading and a graph showing how the reading changes over time. You can record data by tapping the record
button, and take a single reading by tapping the snapshot button. Note that the pitch sensor will work best
for continuous sounds, and not instantaneous sounds like clapping your hands or slamming
a door. Try using the pitch sensor to do some simple
experiments. For example, test your own vocal range and
see how high and low you can get the pitch reading to go when humming or singing. To learn more about Google’s Science Journal
app, and see a list of fun experiments you can do with the app, click the link at the
end of this video.

Leave a Reply

Your email address will not be published. Required fields are marked *