This paper discusses two pitch detection algorithms (PDA) for simple audio signals which are based on zero-cross rate (ZCR) and autocorrelation function (ACF). As it is well known, pitch detection methods based on ZCR and ...

This paper discusses two pitch detection algorithms (PDA) for simple audio signals which are based on zero-cross rate (ZCR) and autocorrelation function (ACF). As it is well known, pitch detection methods based on ZCR and ...

Digital signal processing allows a wide range of digital applications, including audio processing. Discrete wavelet transform (DWT) is one of the most efficient ways of time–frequency analysis of an audio signal. The ...

The Internet of Things (IoT) is increasingly present in people's daily lives and in many projects involving Smart Farm monitoring. Digital processing of audio signals enables detection and monitoring of species that emit ...

The following work presents the performed procedures to the project and implementation of digital filters in one microcontroller device with the objective of filtering an audio signal. The main concepts about sound waves ...

Digital signal processing has many advantages and opportunities for expansion and creation of useful tools in the audio production and manipulation. Thus, computing devices have become essential in audio production studios ...