Decibel Sound Meter: dB SPL 1.7.0 - App Store

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About Decibel Sound Meter: dB SPL

Sound level meter(or SPL) app is shows a decibel values by measure the environmental noise, displays measured dB values in various forms. you'll experience tidy graphic design with high frame by this smart sound meter...

Sound level meter(or SPL) app is shows a decibel values by measure the environmental noise, displays measured dB values in various forms. you'll experience tidy graphic design with high frame by this smart sound meter app. Decibel meters also are referred to as sound level meters (decibel meters), noise detection, sound meters, noise detectors, and noise detectors. Decibel meter may be a noise detection software that uses mobile microphone to live the ambient noise decibel (dB). The current decibel size and curve are displayed during the method . With the decibel meter, you'll measure the present ring The background level of the environment is straightforward and straightforward to use. Functions: - The dashboard displays the present noise decibel value - Display min/aver/max/current decibel value - Display decibel size change chart - Auto decibel value calibrate - Display test time 11 Levels of Noise: 120dB: thunder 110dB: rock 'n' roll 100dB: train 90dB: factory 80dB: busy street 70dB: busy traffic 60dB: conversation 50dB: quiet library 40dB: quiet park 30dB: whisper 20dB: leaves fall Decibels: dB, dB(A), dBA, dB(C), dBV, dBm and dBi? What are they all? The decibel (dB) may be a logarithmic unit wont to measure sound level. it's also widely utilized in electronics, signals and communication. The dB may be a logarithmic way of describing a ratio. The ratio could also be power, instantaneous sound pressure , voltage or intensity or several other things. afterward we relate dB to the phon and to the sone, which measures loudness. What is a Sound level meter? A sound level meter is employed for acoustic (sound that travels through air) measurements. it's commonly a hand-held instrument with a microphone. the simplest sort of microphone for sound level meters is that the condenser microphone[1], which mixes precision with stability and reliability. The diaphragm of the microphone responds to changes in atmospheric pressure caused by sound waves. that's why the instrument is usually mentioned as a instantaneous sound pressure Level (SPL) Meter. This movement of the diaphragm, i.e. the instantaneous sound pressure deviation (pascal Pa), is converted into an electrical signal (volts V). While describing sound in terms of instantaneous sound pressure (Pascal) is feasible , a logarithmic conversion is typically applied and therefore the instantaneous sound pressure level is stated instead, with 0 dB SPL adequate to 20 micropascals. A microphone is distinguishable by the voltage value produced when a known, constant instantaneous sound pressure is applied. this is often referred to as the microphone sensitivity. The instrument must know the sensitivity of the actual microphone getting used . Using this information, the instrument is in a position to accurately convert the electrical signal back to a instantaneous sound pressure , and display the resulting instantaneous sound pressure level (decibels dB SPL). Sound level meters are commonly utilized in sound pollution studies for the quantification of various sorts of noise, especially for industrial, environmental, mining[2] and aircraft noise. the present international standard that specifies sound level meter functionality and performances is that the IEC 61672-1:2013. However, the reading from a sound level meter doesn't correlate well to human-perceived loudness, which is best measured by a loudness meter. Specific loudness may be a compressive nonlinearity and varies at certain levels and at certain frequencies.These metrics also can be calculated during a number of various ways Note: Microphones in most IOS devices are aligned to human voice. the utmost values are limited by the device. Very loud sounds(over ~90 dB) might not be recognized in most device. So please use it as just an auxiliary tools. Terms & Condition: https://ghapps1.wordpress.com/terms-condition/ Privacy Policy: https://ghapps1.wordpress.com/privacy-policy/

Version History • The readings were labelled dBA but the app was measuring without any weighting at all. A-weighting to IEC 61672 is now actually applied, and so is proper Fast time weighting • The session average is now a real LAeq instead of an arithmetic mean of decibels • Daily dose used an 85 dBA threshold instead of the 80 dBA the NIOSH standard asks for: a full shift at 84 dBA showed 0% when it is 79% • A phone call used to stop the meter for good while the screen still said it was measuring • Automatic calibration could hang forever, and a legitimate 0.0 dB offset was thrown away • Two features on the purchase screen were not real: one is free for everyone and the other does not exist • The whole professional mode was in English in every language • The app now says plainly that a phone microphone is not a certified sound level meter 1.7.0 Sep 17 • New free Exposure mode: session LAeq alongside the live SPL reading • NIOSH REL and OSHA PEL dosimeter — accumulated dose %, 8-hour TWA, projected 8-hour dose and time remaining at the current level • Calibration offset (±15 dB) so you can match a reference meter • Exposure sessions saved on your device, with CSV export 1.6.0 Aug 18 • Bug fixes and performance improvements 1.5.0 Aug 8 • Improved translations across all supported languages • Bug fixes and performance improvements 1.4.0 Aug 6 What's New -Removed outdated screenshots -Updated libraries for improved stability -Overall performance enhancements and bug fixes -Added a video with decibel meter Enjoy! 1.3.1 Mar 14 What’s New - New Professional PDF Export Export your sound measurements to high-quality PDF reports, including charts, session data, device info, and location (when available). - Improved Recording Experience More reliable measurement sessions with better stability and smoother real-time updates. - Measurement History Automatically save past sessions with date, time, duration, and noise statistics for easy review. - Updated App Icon Brand-new, modern icon aligned with the latest iOS design language. - Tested on iOS 26 Fully tested and confirmed to work correctly on iOS 26. General performance and UI improvements 1.3.0 12/31/2025 -Improve Performance -Update Libs 1.2.0 09/25/2021 - fix minor Bugs 1.1 01/12/2021 1.0 03/08/2020

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Previous Versions

Here you can find the changelog of Decibel Sound Meter: dB SPL since it was posted on our website on 2021-12-18 04:17:47. The latest version is 1.7.0 and it was updated on 2026-10-07 02:19:27. See below the changes in each version.

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