Decibel : dB sound level meter

Name: Decibel : dB sound level meter
Rating: 4.64916 (34848 reviews)

Utilities

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Decibel : dB sound level meter

Utilities

4.6

34.8K ratings

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Vlad Polyanskiy

In-App Purchases

$1.99 – $29.99

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User Reviews for Decibel : dB sound level meter

Not very accurate...

Despite claim that it is calibrated with a professional sound level meter, I found the measurements to be consistently 5-7 dB higher than my trusted B&K 2250. That is way higher than accepted error reported by standards and the main NIOSH hearing group study on smartphone apps accuracy. There aslo no documentations or papers to support the claim of accuracy. Another flaw: Peak level should never be lower than max level, yet in this app, it seems that Max is sometimes higher than Peak. Maximum sound levels are averaged over the time period it's measured at while Peak is the absolute highest level captured by the microphone before any averaging or RMS calculations. Finally, what is the average displayed? Averaged based on what criteria? Most sound level measuring instruments have a threshold value as specified by a threshold level and an exchange rate, yet this app does not provide any such information. A calculated "average" is really useless without these parameters.

AcousticsPro, Aug 10, 2018

Pleasantly surprised

This initially appears to be a subscription app, but I overlooked the X in the upper left. Using the free version is really nice and provide the functionality that i need. (Im really curious to try the hearing test) What I’m pleasantly surprised about is that i initially reviewed the app by complaining that it was a “subscription only” app. The developer wrote to me to clarify my misunderstanding and how to use the free version. Their email was so polite and well worded that I felt compelled to return to the app and try it again. The respectful tone and thorough note that the sent me makes me anticipate that their customer service would be excellent. Well done.

FredtheWhale, Jul 21, 2021

A valuable, reliable and convenient sound meter

For the past several years i have used this sound meter app to test each power tool in my woodshop and even my power sprayer. The meter shows the sound levels instantly in a very clear and easy to re-display. I then replaced some of my power tools like the small hand sanders with quieter units. For example I found that the Dewalt square sheet sander was much quieter than my previous small sander. I have 3M tech over the ear muffs in the shop but based on some of these readings I added foam earplugs as well. Also i simply use this phone app to test any new devices or equipment I’m interested in buying in stores as well. Keep in mind that the decibel level of a tool or concert depends on where you’re using it or standing. For example if you use a small high decibel device in the corner of a room it can be much much louder and more dangerous then if you use it in the center of a room!! I now, based on these meter readings, also bring earplugs to concerts and move further from the stage as needed to lower the decibels.

hearbetter, Aug 07, 2020

Very nice

I installed the app because I needed to check the volume difference between my guitar with and without an amplifier . My ears alone could not determine how much difference there was. I was not happy to see the free version was only for 3 days but I did not stress over it since I could unsubscribe. I don’t mind paying for a good app because that allows good developers to create things that work great for me.After I installed it I went through and looked at all the options and I realized how many more things I could be doing with it that I was not aware was in the app. For instance, I know I have some hearing loss and this app has a feature where you can test your hearing. This app will also allow me to check the DB level in some of the industrial environments that I work in. There are some limitations though. For instance this app is not a frequency counter to tell you what the frequency is of the sound you hear but then it is not advertised as that. An additional limitation would be the frequency response of the microphone in your phone. So if you needed to get an absolute precise frequency level you would probably have to get an expensive sound level meter. On first use this is an excellent application and worth the price as long as you have a valid use for it.

JamieReneeH, Apr 14, 2022

Accurate as a phone app can get

Thank you for this app. I was looking for something that could give me a general idea of the sound dB ranges in different locations. Since I only needed a general range for this project I looked for a free or low cost app. It worked better than I expected a phone app would be able to. I felt the need to leave a review as I am surprised at the amount of people that left negative reviews. The iPhone mic is quite different than a calibrated device that cost $100 and up. Not to mention variances in cases, dirt build up, people’s hand placement, even the direction the mic is being pointed at could slightly alter results. All that said this was accurate within 5db up or down in my results. Considering all I mentioned above that is pretty good. If you need something highly accurate for something of importance you should be looking into an calibrated device made for such things.

Julie12345678910111213, Jun 08, 2019

I don’t think it’s the app that isn’t accurate

As my title says I don’t believe the app is inaccurate, I think it’s the devices. Obviously iPhones weren’t developed to be accurate measuring tools. Just think about how your voice sounds when you record it through the phone onto something like GarageBand? It sounds like dog poo, so yeah, that’s what the app has to work with. Based on the fact that the measurements are done with a mic diaphragm the size of a BB I think it does a great job. I do wish they would tell everyone these things though so people aren’t disappointed, thus the 4 stars. I know it should be totally obvious it’s a freakin app on a phone, but people seem to think they should get Lamborghini performance out of there Camry.....

Natemasterflex, Nov 11, 2018

Great free app

This is a great free app. You can expect some adds. This is a great app for measuring noise. I'm using the app to measure noise in my home. I'm trying to find the source. I cant find the source because the sound level is the same everywhere. But what I can do is measure the sound level when it sounds louder. The app works amazingly well for that purpose. I don't have a couple thousand dollars to purchase a real sound meter. Im obviously not a pro in the sound field. This app is excellent for measuring sound level. The numbers may be different if I spend a couple thousand dollars on a pro model but I only care about seeing if the number goes up or down. So If pro model read 7 and app said 12 and later that day I felt like the noise was louder and I measured the sound, it wouldnt matter to me if pro model said 17 and app said 22. So, perfect for my purposes and its free! Thank you Mr Developer😁

smplm, Jun 21, 2020

So far so good!

I purchased the pro version as I am an audio engineer and would like to have something convenient as a quick reference rather then pulling out my larger, more professional tools. So far this has been pretty accurate and quite helpful. I would like to see some adjustability on the “over limit” marker. There are times I am given a dB limit to follow and being able to set this for when the meter reaches “over” would be nice. Maybe even some other larger notification and options to turn this on and off? A couple tweeks and this app would be amazing! Solid product for sure!

Smurdamat2, Jan 29, 2018

Robbed - Export data to Apple Health

I paid for Spectrum Pro, Dosimeter Pro, and dB Meter Pro. I just noticed that now I no longer have Spectrum Pro because it now requires an $8 monthly subscription. I still have Dosimeter Pro and dB Meter Pro (until they also require a subscription). I was confused about which one would export data to Apple Health. However, I happily paid for them all because all I wanted Apple Health tracking. But now even that has become unavailable. I turn on export to Apple Health. It shows it's on until I leave the settings page. I go back to find it's off every time. How can a developer, in good conscience, take away features they once offered for a one time fee? All because they want to hop on the subscription bandwagon like all other apps. I want the features I bought. I understand developers need to get paid, but customers who paid before you switch to subscriptions should get to keep all the features offered at their time of purchase.

T.J. L, Apr 11, 2020

University AV Technician Recommended

Absolutely love this app. I can use this meter to accurately commission a new installation quickly by just using the phone in my pocket. Love this app. My favorite app made outside of native ones or Microsoft. Generally speaking ambient noise is 40db in most campus buildings. When we are testing we want our systems to produce 35db more at maximum volume to account for bodies in the room absorbing sound. This app makes it so I can test the ambient level, and tweak (gain stage) the audio equipment to around 35db more than the measured ambient. Use this all the time. Gives a much more scientific approach across campus without carrying a specialized tool. The specialized tool would be more accurate but it’s like a 80/20 rule. This gets me 80% of the way there without lugging something around. This is immense value. I also use this to teach student workers about different audio reference points in real time. Beautiful thing. I never write reviews. This app soooo deserves it. I only wish there was a partner app for Lux.

Wedding Videographer, Feb 27, 2022

Description

Decibel Meter Pro is full of features sound level meter with exclusive accuracy of measurements and integrated Spectrum Analyzer. Calibrated with professional dB meter. The world is a noisy place: cars, power tools, crowds, machinery, and other common sources produce amounts of noise that can, with continued exposure, lead to permanent hearing loss.

Sound level meters are useful for anyone who wants to avoid exposing their ears to harmful noise levels, but who wants to spend hundreds of dollars on one? dB Meter is free app which provides professional-quality measurement results, calibrated using an actual Nor140 high-precision decibel meter. With dB Meter, you can measure ambient noise levels, save your measurements and their locations, and share your measurements with others. dB Meter couples utility with stylish design and a polished user experience: a powerful tool in a sleek package, and at a tiny fraction of the cost of professional sound level meters. (Please note that dB Meter Pro app is not a replacement for professional devices and should be used for personal purposes only.) "The best way to meter sound levels" - AppAdvice FEATURES: ● Health App integration. Export measured noise levels and audiogram directly to Health app. ● Noise dosimeter will help you understand how noisy it is at home and at your workplace. In the event your daily permissible dose of noise is exceeded, use Noise-absorbing headsets or Earplugs. ● Enables you to overlay the ambient noise level onto photos and videos and to export the results. ● Saves location data for each measurement. ● Save measurements with custom names and rename existing measurements. ● Export measurements in CSV or Audio format. ● Allows you to save, export and play back recorded measurements. ● Highly accurate measurements. ● Integrated Fully Functional Spectrum Analyzer ● Octave Band Real Time Analyzer ● FFT Plot (Fast Fourier Transform) ● Linear and logarithm scales ● Up to 16384 FFT size ● A lot of available window functions ● Tracking for max value ● Max and Min for any selected frequency ● Stunned graphics You can enable or disable noise levels data exporting to Health app in dB Meter Pro app settings. Have any questions or suggestions? Write to us: [email protected] App offers an optional monthly and annual subscriptions: Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions will automatically renew unless autorenew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal in accordance with your plan, within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Apple ID account settings any time after purchase. Please note, any unused portion of a free trial period will be forfeited when making a purchase of an auto-renewing subscription. By downloading and using the app you are agreeing with Terms of Use: https://www.iubenda.com/terms-and-conditions/94359518 Privacy Policy: https://www.iubenda.com/privacy-policy/94359518 Disclaimer: http://dbmeterpro.com/disclaimer.html DB Chart 150-160 dB = Eardrum rupture 140 decibel = Aircraft carrier deck. 130 dB = Jet take-off (100 meters), gun blast at close range. 120 dB= Human pain threshold, loud rock concert. 110 decibel = Serious hearing damage if sustained for more than 1 hour. 100 dB = Serious hearing damage if sustained for more than 8 hours. 90 decibel = Likely hearing damage if sustained for more than 8 hours. 80 decibel = Potential but unlikely hearing damage if sustained for more than 8 hours. 70 dB = Just annoying, but probably safe. 60 dB= Typical conversational volume. 50 dB = A quiet, library conversation. 40 decibel = A whisper. 30 dB= Barely audible sound. 20 decibel= Threshold of human hearing.