Physics apps - sound 1

Android phones (smartphones) and tablets can both detect sound (mike) and produce sound and can thus make useful tools for sound experiements. So far the writer has seen apps for measuring sound loudness (in dB), analysing sound frequency and generating sounds of a specific frequency. Specific apps are used as examples. There are often many similar apps and I cannot guarantee that I found the best.

Measuring sound loudness - the app Sound Meter (Lite) shows the loudness on a meter-type display along with max and min values. Also displayed is a real time graph. The maximum sound loudness is 82dB on my tablet - this is a limitation and varies with hardware brand and model. I noticed that the sound of heavy rain on a metal roof maxed out the meter at 82dB.

More in another post.