Code covered by the BSD License
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initDisplay(AI,x,X,dBA,Fs,C)
INITDISPLAY Initializes SLM figure window.
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SLM
SLM Implements a basic sound level meter.
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analyzeSignal(x,Fs)
ANALYZESIGNAL Evaluates dBA level of input signal.
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estimateLevel(x,Fs,C)
ESTIMATELEVEL Estimates signal level in dBA.
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filterA(f,plotFilter)
FILTERA Generates an A-weighting filter.
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initSoundCard(Fs,responseType...
INITSOUNDCARD Initializes the sound card.
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runCalibration
RUNCALIBRATION Estimates the calibration constant.
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stopSoundCard(obj,event)
STOPSOUNDCARD Closes sound card device.
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updateDisplay(obj,event)
UPDATEDISPLAY Updates the SLM display.
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View all files
from
Sound Level Meter
by Douglas Lanman
Implements real-time spectrum analyzer and displays decibel level.
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| 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
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