Real-Time Audio Spectrum Analyzer to Analyze Loudspeaker

Autor:	M. Zakaria, B. J. R. Raharjo
Rok vydání:	2019
Předmět:	History Computer science Acoustics Audio spectrum analyzer Loudspeaker Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 1413:012005
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1413/1/012005
Popis:	This paper, the writer implements an Audio Spectrum Analyzer application that is used to see the frequency response of the loudspeaker in real-time. This application starts with the creation of the Fast Fourier Transform (FFT) function, which calculates the amplitude value of the captured audio sound. Furthermore, making the equalizer and normalization process to set the highest amplitude value of each spectrum so that it is more easily examined. This Spectrum Analyzer application was developed using the Matlab Guide User Interface (GUI) feature. Inputs are processed in the form of sound signals captured by an RTA microphone and then processed by an external soundcard and displayed in the software. From the test results and comparison of the Audio Spectrum Analyzer application, it can be concluded that this device can also show the exact location of the spectrum.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::81224693e2412c68486286059263cb6b https://doi.org/10.1088/1742-6596/1413/1/012005 Zobrazit plný text záznamu