Original sound pressure level meters from spllab company. Want to measure the sound pressure level spl around you. The studies also revealed that most commercially available sound measurement apps. Here are a few examples of soundlevel software you can download and experiment with. This extremely useful and beautiful tool will not only be a. So how accurate are these smartphone sound measurement. The second galaxy audio sound pressure meter to enter our list, this is another midrange meter thats ideal if youre looking for a sound meter that does exactly what it says on the tin without having to muck around with extra functions that you might not need nor want. Smartphones were set up on a stand in the middle of the chamber at a height of 4 feet and approximately 6 inches from the reference microphone as shown in figure 1. Our app displays the instantaneous sound pressure level as a default in a, c, or z weighting, but you can select to display the laeq, max level. It is measured with a sound pressure level meter, such as the pulsar nova. This app is available only on the app store for iphone. Modeled after a traditional analog spl meter, we have faithfully reproduced all the characteristics and qualities found in those meters, including the ballistics, ranges, filters, and decay rates. Free sound level meter app from cdcs national institute for.
It can also calculate the minimum, average, and maximum noise level of a sound measuring session. This sound level meter application for the android market is a simple tool that uses the smart phone s microphone to measure sound pressure level spl. Decibel meter for iphone for ios free download and. How decibel sound level meters work explain that stuff. Decibel displays the current, minimum, and maximum values of sounds around you, in decibels, and then turns this information into userfriendly sound level charts and graphs. The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability. Spl meter is a professionalgrade sound level meter, also known as a decibel or db meter, for your iphone or ipod touch. For example, niosh slm reports the sound level in different weighted decibels, including aweighted decibels, which can give you a good idea of the level of sound. Spl meter vs iphone spl meter, the decibel meter challenge. Sound level meteror spl app is shows a decibel values by measure the environmental noise, displays measured db values in various forms. Most noise level parameters in a report are based upon an spl, albeit they are mostly adjusted in some way, i. Modeled after a traditional analog spl meter, we have faithfully reproduced all the characteristics and qualities found in those meters. If for a legal purpose, you will need a calibrated meter.
There is an application that is a sound pressure level meter. It boasts many features for measuring the intensity of sound around you built into a nicelydesigned, intuitive user interface. It has been meticulously designed with you in mind. A sound level meter is used for acoustic sound that travels through air measurements. It is commonly a handheld instrument with a microphone. Best sound pressure level spl meters for 2019 amidio. The national institute of occupational safety and health niosh hearingloss team evaluated 192 sound measurement applications for the ios and android smartphone platforms, to examine their accuracy and userfriendliness in comparison to standalone, professionalquality sound. Measure noise levels with these smartphone decibel meter apps. Free sound level meter app from cdcs national institute.
Similar to a spl meter although far more advanced a sound meter determines the sound level by measuring the sound level pressure. Free sound level meter app from cdcs national institute for occupational safety and health. Created by darren gates, db volume meter shows the. Additionally, a larsondavis model 831 type 1 sound level meter was used to verify sound pressure levels. A sound level meter is an instrument designed to respond to sound in approximately the same way as the human ear. Sound travels in waves, produced when an object such as a stereo speaker pushes on the air around it, causing small changes in air pressure. You can easily set a volume limit on your ipod and iphone. A professionalgrade sound level meter thats part of audiotools, an app designed for the ipad, iphone, and ipod touch. It turns your ios device into a professional sound level meter, precisely measures the sound pressure level. Niosh sound level meter application app for ios devices. An accurate, highquality sound level meter, though the price tag may put it out of the reach of some. What is sound pressure level and how is it measured. Niosh estimates that 22 million workers in the united states are exposed to hazardous.
The measuring center for windows software is supplied free of charge complete with the spllab equipment. A sound pressure level is what we can physically measure using a sound level meter. A generalpurpose sound editing program that you can also use for crude sound. Decibel x is one of very few noise meter apps on the market that has highly reliable, precalibrated measurements and supports dba, dbc. Spl meter is a professionalgrade sound level meter, also known as a decibel or db meter, for your iphone, ipad or ipod touch. Centers for disease control and prevention cdc recommended for you 6. It can specifically measure the level of sound pressure around you. Exairs model 9104 digital sound level meter is an easy to use instrument that can measure and monitor the sound level pressure in a wide variety of industrial environments.
This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Relevancy of smartphone sound level meter apps for occupational purposes of the millions of applications apps available for smartphones, many developers offer a number of sound measurement apps, including some intended to function as sound level meters slms in which the smartphones builtin microphone is used to pick up the sound. Measure noise levels with a smartphone app youtube. The decibel meter challenge we find out if an iphone spl meter is as accurate as a dedicated spl meter. Sound enters the meter through a microphone, and then the meter evaluates the sound values by converting them into electrical information and the measurement values in decibels are displayed. This highlyrated, free app turns your smartphone into a precalibrated, accurate and easily portable sound level meter. It turns your ios device into a professional sound level meter, precisely measures the sound pressure level spl all around you. These handy devices are most commonly used in pollution studies. Like most of the noise meter iphone apps on my list, it also plots a realtime graph of noise levels and displays a noise meter gauge. Sound decibel meter, goertek digital mini sound pressure level meter, audio noise measurement 30dba,maxmin hold,auto backlight display3aaa battery includedd gm52 4. It has a standard measurement range from 30 to db.
Here are some great decibel and sound meter smartphone apps for. Sound pressure level meter free android and iphone app. Decibel meter for iphone uses your iphone s built in mic to determine the intensity level of sounds it picks up, and displays it in db spl decibel sound pressure level. Soundlog displays the laeq aweighted, equivalent sound level, lcpk cweighted peak sound level and laeq. Like most of the noise meter iphone apps on my list, it also plots a realtime graph of. High precision sound level meter for measuring sound frequency our sound pressure level meter can be apply for android, ios, windows devices a guarantee for all equipment 12 months. The use of sound level meter apps in the clinical setting. Smartphones were set up on a stand in the middle of the chamber at a height of 4 feet and approximately 6 inches. It should be noted that this app uses the microphone of your phone to asses decibel levels around you so it depends on your phones power. Smartphone apps that will measure decibels to help you recognize noise levels around you and when you may need hearing protection. So how accurate are these smartphone sound measurement apps. It is one of the best spl meter app which shows the decibel values by measuring the environmental noise and displays the measured db values in various forms. Sound level meter is the last iphone app to calculate noise levels around you.
Sound meter hq is an accurate noise level meter app that you can carry right in your pocket. The purpose is to give objective, reproducible measurements of sound pressure level spl. Sound measuring gunshot noise level trap shooters forum. Question, is this for your information only or for a legal purpose. A sound level meter is one of the best sound meter app for android.
Measuring the amplitudefrequency characteristic afc of the signal displaying the spectrum. It is also known as the best iphone db meter or best iphone decibel meter which is capable of getting the accurate decibel levels. Purpose the purpose of this study was to compare sound level meter slm readings obtained using a larsondavis depew, ny model 831 type 1 slm, a radioshack fort worth, tx slm, and iphone 5. Decibel meter btmeter bt882a digital sound level meter sound pressure level readerspl with 30db range for noise measurement 4. Well, maybe you need one of these decibel meters to determine if the sound level in your space is harmful to your hearing. The niosh sound level meter slm app combines the best features of professional sound levels meters and noise dosimeters into a simple, easytouse package. The second galaxy audio sound pressure meter to enter our list, this is another midrange meter thats ideal if youre looking for a sound meter. To describe sound waves, acoustic experts refer to concepts such as frequency and amplitude. A sound level meter for your ipad or iphone, splnfft noise meter offers. You can experience the measured decibel values in a tidy graphic design with a high frame using this app. Spl vs swl sound pressure level and sound power level. The app was developed to help workers make informed decisions about their noise environment and promote better hearing health and prevention efforts.
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