SmarterNoise Pro

Agibili

About this app

SmarterNoise Pro is the most advanced edition of the SmarterNoise recording sound level meters. Our Pro edition decibel meter is developed especially with more advanced measurements in mind, and includes many requested features such as a frequency spectrum display, export of measurement data, A-, C- or no weighting, and full screen audio measurement. Our Pro edition does not contain any advertising, and performs accurately and fast.


Features of SmarterNoise Pro - sound meter analyzer recorder:

• Sound level measurement in video mode
• Sound level measurement in audio mode
• Sound meter snapshot camera
• Record video and audio files
• Sound level activated audio recording
• Limit recording length
• Frequency spectrum display
• Peak frequency detection
• A-, C- or no weighting
• Export of measurement data in CSV format
• Full HD (1080p), HD (720p) or VGA (480p) video resolution
• Three video quality settings
• Archive for saved files
• Sharing of saved files
• Add text notes to measurements
• Calibration
• Location, address
• Time and date
• Continuous Leq, LAeq, LCeq value
• 10 second sound level average (Leq, LAeq, LCeq)
• 60 second sound level average (Leq, LAeq, LCeq)
• Maximum and minimum decibel level


About decibels and sound level measurement

The unit for measuring sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of about 3 decibels. The reference point of 0 decibel is set at the intensity of the least perceptible sound, the threshold of hearing. On such a scale a 10-decibel sound is 10 times the intensity of the reference sound. Highlighting this is important as already a few decibels higher or lower makes a noticeable difference in how noise is perceived.

The preferred method to describe sound levels that vary over time, resulting in a single decibel value measuring the total sound energy over the period, is called Leq. It is however common practice to measure sound levels using A-weighting, which attenuates lower and higher frequencies that the average person cannot hear. In this case the value is called LAeq.

A- and C-weighting

The A-weighting is a standard, commonly used filter that attempts to alter the measured sound pressure levels to more closely match the perception of the human ear. A-weighting makes the sound level meter less sensitive to very high (over 8000 Hz) and low frequencies (below 1000 Hz).
C-weighting also attenuates low and high frequencies, but the attenuation of low frequencies is much less severe compared to A-weighting.

Calibrate:

Calibrate the application using the calibration tool found in the settings menu. Phones and their components vary in quality and setup so you need to calibrate the app in order for the results to be relatively comparable. One suggestion is that you close the window and door to your bedroom or bathroom, turn off appliances, and once its very quiet calibrate the app so the reading is about 30 decibel.

Ratings and reviews

I find new reasons to love this software, for me it has never crashed on older and lots of different devices , I was thinking about getting a solo device just for It in the car for sound, It is also a great dash cam capability on a mount, that can record video with calibrated audio, not into dash cams myself for intended reasons, however I like being able to film nice scenes with calibrated sounds, the car being the stable dolly, the headlights being strong and adaptable light source. Thoughts

really useful app. absolutely needs a setting on the timer to start at a set time, rather than a countdown timer, IE to record automatically from midnight until 5am. currently this can only be done manually which is a massive inconvenience. Also GPS location can be buggy and lock to random local addresses which requires multiple restarts to get through correct location. Regardless of those issues the app is awesome, thx!

gemini pointed me here when looking for an app that works with Bluetooth sound level meters. I don't see much at all in the settings in this app I don't understand why it's a premium $5 app call Matt doesn't seem to do anything more than all the free apps I tried. also frustrating when apps use icons for everything without any text

What’s new

Improved the dynamic range of the frequency spectrum displays.