Continuous Sound and Vibration Analysis
Updated 4 Dec 2013
The main program is Main_sound_and_vibs.m. Several metrics are for each of sound, hand arm vibrations, whole body vibrations, and motion sickness. Main_sound_and_vibs calls the primary dependent function
"Continuous_Sound_and_Vibrations_Analysis" which contains the switch statement controlling the data flow.
This program calculates metrics for continuous sound and vibrations. Sound metrics include: peaks, Leq, LeqA, LeqC, kurtosis, third octave band peaks and levels, and more.
Vibration metrics for hand-arm include: arms, armq, Dy, peak, crest factor, kurtosis, third octave band levels and peaks, and more.
Vibration metrics for whole-body include: arms, armq, VDV, MSDV, crest factor, kurtosis, third octave band levels and peaks, and more.
The vibration metrics except for the third octave bands are calculated using both the weighted and unweighted filters.
This program prompts the user for all of the inputs to the Continuous_Sound_and_Vibrations_Analysis.m program.
The user selects either matlab or wav files to analyze for sound and vibrations. There are a series of prompts for output filenames, formating of output images of the figures, and the Name of the device under test (Tool Name).
Edward Zechmann (2023). Continuous Sound and Vibration Analysis (https://www.mathworks.com/matlabcentral/fileexchange/21384-continuous-sound-and-vibration-analysis), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform CompatibilityWindows macOS Linux
- Industries > Automotive > Chassis Systems >
- Signal Processing > Signal Processing Toolbox > Measurements and Feature Extraction > Descriptive Statistics >
- Signal Processing > Signal Processing Toolbox > Vibration Analysis >
- Engineering > Mechanical Engineering > Acoustics, Noise and Vibration >
Inspired by: LMS Toolbox, Subaxis - Subplot, choosebox, Computation of Special Functions, Moving averages / Moving median etc, parseargs: Simplifies input processing for functions with multiple options, Estimatenoise
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This update should fix a bug that caused the previous version to crash in some cases.
Added an option for a Fourier third octave band filter.
Fixed a bug in the calculation of VDV. Thanks to Longqi Wang for finding the bug.
Fixed bugs in outputting vibrations metrics.
Fixed abug in the selection of the posture type. This affects posture types 2-8 including the filter coefficients.
Fixed a bug in calculating VDV for whole body vibrations.
Fixed a bug in loading wave files.
Fixed a bug in the running average.
Added Comments and modified the subprogram find_nums. Fixed a bug with reporting the scaling factors for whole body vibration. Fixed bug where values of the mtrics were not reported to the metrics field.