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This project is the MATLAB development of a virtual sound level meter. The program will read in a calibrated .wav file and allow the user to analyze it as one would analyze a sound field with a sound level meter. The software implements Fast, Slow, Impulse and LEQ; A, C and Flat Weighting; Ln and Noise Dose analysis; Octave and 1/3 Octave band analysis; high resolution FFT analysis and spectrograms. Band analysis can be made using fast FFT methods or slower, but ANSI standard methods.
Source code requires MATLAB + Signal Processing Toolbox.
Developed under MATLAB R2010a (but might work with some earlier versions)
Executable version does not require MATLAB and runs under Windows XP, Vista, and Windows 7.
Features
- MATLAB Based Software Sound Analyzer
- Mimics results of an ANSI Standard Integrating Sound Level Meter
- Includes Lp, LEQ, Octave and 1/3 Octave Band, NC, RC and FFT Analysis
Project Samples
License
GNU General Public License version 2.0 (GPLv2)Follow Virtual Sound Level Meter
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User Reviews
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Programma molto utile e ben fatto! ... molto comodo quando non è strettamente necessario usare il fonometro tradizionale. Grazie!
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UN GRAN PROYECTO QUE TIENE GRANDES POSIBILIDADES TANTO EN DOCENCIA COMO EN FUTUROS DESARROLLOS EN EL CAMPO DE LA ACÚSTICA DE SALAS, ANÁLISIS DE LA RESPUESTA IMPULSIVA, ETC...
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Really simple, and useful use it for my voice recordings so i can know that i didn't talk too loud!
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Great project! I recommend this program strongly!