Frequency Analyzer: a new teaching app for Android

Autores UPV
Revista Modelling in Science Education and Learning


In this paper we present an application for Android mobile device able of measuring the fundamental frequency of a sound very precisely. This application may be used in diverse fields as in music for tuning musical instruments, in physics for measuring the Doppler effect or in speech recognition systems to determine the fundamental frequency of the voice. Specifically, in this paper we present some examples in the field of physics related to the Doppler effect for sound waves.