ABSTRACT
Smartphones can be used as experimental tools in scientific education because to their built-in sensors, although little research has been conducted to explore this technique. A well-controlled research is needed to offer empirical evidence of the possible consequences of smartphone, given the increasing interest in their creation. In this article, we study sound intensity for male voice for frequency range 110Hz to 155Hz by changing distance (1cm to 10cm). Place the source at one end of scale and observer phone at 1cm and observer reding at different distance The Z and Y axes yield findings in a similar manner. Phyphox application measures the sound intensity levels at various proximity intervals. To observe data, smartphone's microphone is placed at predetermined distance from source. Due to sensors present in app we are able to record sound intensity for desirable frequency. The methods use in this study entails the smartphone that records and process the sound intensity using microphone and audio amplitude sensor. Calibration is done before start the experiment to get accurate and precise readings. Different situation is considered while taking reading to find how environmental conditions and distance from source affects the results. This application can be used in different fields like monitoring different sounds, speech recognition and assistive technology can be benefited.
