Sound Level Meter: All Files - File Exchange - MATLAB Central

Download All

Code covered by the BSD License

Highlights from
Sound Level Meter

initDisplay(AI,x,X,dBA,Fs,C) INITDISPLAY Initializes SLM figure window.
SLM SLM Implements a basic sound level meter.
analyzeSignal(x,Fs) ANALYZESIGNAL Evaluates dBA level of input signal.
estimateLevel(x,Fs,C) ESTIMATELEVEL Estimates signal level in dBA.
filterA(f,plotFilter) FILTERA Generates an A-weighting filter.
initSoundCard(Fs,responseType... INITSOUNDCARD Initializes the sound card.
runCalibration RUNCALIBRATION Estimates the calibration constant.
stopSoundCard(obj,event) STOPSOUNDCARD Closes sound card device.
updateDisplay(obj,event) UPDATEDISPLAY Updates the SLM display.
View all files

image thumbnail

from Sound Level Meter by Douglas Lanman
Implements real-time spectrum analyzer and displays decibel level.

All files for Sound Level Meter
/SLM.m /SLM.pdf /analyzeSignal.m /estimateLevel.m /examples/trashtruck.wav /filterA.m /initDisplay.m /initSoundCard.m /runCalibration.m /stopSoundCard.m /updateDisplay.m

Contact us at files@mathworks.com