Decibel Meter is an application for measuring sound volume indecibels(dB).

Measure the environmental noise in real time & know if it liesin the safe zone.

Measure and save environmental noise and vibration with yourdevice.

Sound Meter PRO is professional sound meter for your Android.SoundMeter is also known as sound level meter, decibel meter (dBmeter),noise meter, sound pressure level meter (SPL meter). SoundMeterPRO uses your Android's microphone to measure levels of noiseorsound pressure levels and displays measured data in dB(decibels)with reference to generally known noise (provided byAmericanAcademy of Audiology) or displays the noise data on easy toreadgraph for the last 30 seconds of app use. Microphones inAndroiddevices are made to record human voice, therefore themaximum noiseis limited and very loud sounds cannot be recognized(in most casesabove 100dB). Sound Meter PRO is calibrated to beaccurate in +-2.5dB range of actual noise level and is probably byfar the mostaccurate sound meter on Google play. We have adjustedSound MeterPRO with the use of professional sound meter used bysoundengineers and made required adjustments for many Androiddevices,including the most popular devices on the market today.Levels ofNoise In decibels (dB) according to American Academy ofAudiology(www.audiology.org): 140 dB - Gun shots, fireworks 130 dB-Jackhammers, Ambulance 120 dB - Jet planes taking off 110 dB-Concerts, Car horns 100 dB - Snowmobiles 90 dB - Power tools 80dB- Alarm clocks 70 dB - Traffic, vacuums 60 dB - Normalconversation50 dB - Moderate rainfall 40 dB - Quiet library 30 dB -Whisper 20dB - Leaves rusting 10 dB – Breathing Why would you useSound MeterPRO? Measure the noise your neighbors make, check newcomputers,refrigerators, air conditioning units before your buythem fornoise levels and select the more quiet ones, to have lessnoisepollution in your home. Measure how loud your car, motorcycleis.Adjust the sound system for the party you are making to safelevelsnot to damage peoples hearing. Measure the noise in theapartment,house you are about to buy, it might be too noisy to livein anddemand for extra noise insulation. Measure your love onessnoringlevels and show them the graph after. Possibilities areendless,Sound Meter PRO is a must have app for every Androiddevice.

You can hear the alarm sound to headset, earphone or speaker.

Noise Meter Measure the volume of sounds using your ANDROID. Easyto Use and Powerful. Support the digital filter. You can see thefilter curve. Support languages : Arabic, English, Korean, Polish,Portuguese, Russian, Spanish, Swedish. There are no ad. Does notrequire any unnecessary permissions. In-app purchases: Donate cafe.If you like this app, buy me a cup of coffee :) Feature: 1.Background measurements. 2. Show average, Leq, min, max and peak dB3. User define update rate 4. High and Low alarm 5. dBA, dBB, dBC,ITU-R 468, Low, High, Band pass filter. 6. Shows the filter curve.7. Keep screen 8. Logging and log viewer 9. Brightnessmeasurements. (lux) 10. Spectrum analysis. This application is notmeant to be used in place of scientific instrumentation. Dependingon the device can also be caused by differences in measurement.Devices employing AGC (Automatic Gain Control) will havesignificant measurement errors. This is not app's fault. NoiseSound Light level meter dB Lux counter

This application brings the functionalities of a Sound LevelMeter(SLM) and a Real Time Spectrum Analyzer (RTA) to your phone.SPL(dB) of the microphone (internal or external) signal. Suitableforacoustic measurements: - SLM: traffic or ambient noiseanalysis(TNI, dBA/dBB/dBC, Leq) - RTA: audio equipment frequencyresponseanalysis (spectrum, octaves, peaks, RMS) This app has muchmorefeatures (+) than the basic edition (no ads). >>SLMmainfeatures: • measurements in SPL • 3 measuring modes(Dynamic,Average, Cumulative) + 3 weighting filter curves: dBA,dBB, dBCaccording to DIN-IEC 651 + fast & easy calibration page• soundlevel versus time chart • current dB value, avg (Leq), minand maxdisplay • Leq (wideband, RMS of the observation period) •audiothreshold trigger + sound level distribution chart +accumulatedsound level chart + current value, Leq, L90, L50 and L10valuesdisplay + TNI (Traffic Noise index) display + exportingofmeasures, chart data (CSV) and screenshot (PNG) • testedwithsamsung galaxy • sharing of text values and screen bmp>>RTAmain features: - measurements in SPL + 5 spectrummeasuring modes(dynamic, average, peak, avg/exp smoothing) - soundlevel versuslinear frequency chart + sound level versus logarithmicfrequencychart (HzLog) + 1/1 Octave Bands chart - 1/3 Octave Bandschart +Microphone Equalizer (Internal or External) in 1/1 Octavebands +calibration in 1/1 Octave bands + 2 spectrum views (Panel&Chart, Landscape Chart) - tap or swipe to select theproperfrequency step - long press to zoom - 4 values versusselectedfrequency component displayed (current, Leq, max, min) +Leq(Octave, RMS of the observation period) + Leq (selectedfrequency,RMS of the observation period) - 20hz/22kHz band, 44100Hz samplingrate + adjustable FFT size (up to 8192, about 5 Hzaccuracy) ,adjustable FPS (up to 20) + exporting of measures/chartdata (CSV)and screenshot (PNG) >>Data collection Theapplication relieson the mobile microphone signal. To achieve thebest resultsconsider the following: 1) Easy Calibration (only thefirst time):Some mobiles are automatically calibrated in the firstinstallationphase. For details see the calibration section of theuser manual.2) keep your fingers away from the mobile microphone 3)silenceyour phone to avoid any ring tones, vibrations and othersounds 4)orient the phone microphone toward the noise sourcekeeping thecorrect distance 5) click on the functionbuttons>>Troubleshooting 1) Wrong SPL/RTA calibration: Seethecalibration section 2) No signals detected below 20dB orover100dB: most smart phone microphones do not work under 20 dB orover100 dB 3) Signal attenuation near band limits: the mobile micmayattenuate frequencies <100 Hz and >15000 Hz Read theembeddedUser Guide: for any info or troubleshooting you can contactus [email protected].

Premium Sound Meter Measuring Noise in Decibel(dB)

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