The implementation of signal analysis in java to determine the sound of human voice and its graphical representation in standard music notation
Patryk Solecki, Wojciech Zabierowski · Facta universitatis - series Electronics and Energetics · 2016
The article presents the problems associated with signal processing in the human voice analysis. Based on the specific implementation of algorithms defining the human voice pitch, paper is shows the result in the form of a standard music notation with treble and bass keys on the stave. Particular attention is paid to the performance of the algorithms used for their implementation in Java. The Basic analysis of human voice signals is not a challenge, in general, but its implementation on mobile devices like smartphones with their limited hardware resources remains a challenge. The limitations of both, the CPU and the memory, affect the processing speed of the Java virtual machine. One should remember that the quality of microphone used in this type of mobile devices is low. From this point of view we have presented the new approach to the well-known problem of signal analysis implemented in computer applications such as Raven.