About Sound Level Analyzer
"Sound Level Analyzer" is the standard sound level measurement app with sound frequency analysis tools. It is available for a wide variety of applications, such as measuring ambient noise in neighborhoods, testing audio...
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Version History - Improved internal processing and performance. - Requires iOS 26.2 or later. 9.0 Jan 12 - Renewed UI design. - Requires iOS 18.1 or later. 8.0 12/01/2024 - Improved internal processing and performance. - Changed the display position of the occurrence time and the maximum level in "Display Max" at P.S. mode. - Requires iOS 16.6 or later. 7.0 09/30/2023 - Improved internal processing and performance. - Renewed UI design. - Requires iOS 15.0 or later. 6.0 10/05/2022 - Replaced a screenshot on the AppStore. 5.0.1 11/06/2021 - Minor improvements. - Requires iOS15.0 or later. 5.0 11/03/2021 - Minor improvements. - Requires iOS12.5 or later. 4.2 02/17/2021 - Minor improvements. 4.1 11/04/2020 - Partially changed the FFT frequency display range to match the frequency with high audibility. - Added processing to prevent erroneous operation during measurement. - Minor improvement. - Requires iOS12.4 or later. 4.0 05/18/2020 - Add the measured value display function in 1/3 oct band response analysis. - Minor improvement. - Requires iOS12.2 or later. 3.1 04/02/2019 - Changed UI. - Minor bug fixes and minor improvements. - Requires iOS12.1 or later. 3.0 11/13/2018 "Sound Level Analyzer" has received the best rating as sound level measurement app in the research paper of the academic journal "Applied Acoustics". (Paper: ”Testing the accuracy of smartphones and sound level meter applications for measuring environmental noise”, Enda Murphy, Eoin A. King ; Applied Acoustics 106(2016)16-22.) - Minor bug fixed. - Performance Improvement. - Requires iOS10.3 or later. 2.3 05/17/2017 - Optimized the code. - Changed the screen design. - Requires iOS10.2 or later. 2.2 03/24/2017 Achieved over 100,000 downloads, "Sound Level Analyzer / Lite", #1 sound level meter app for iPhone ! - Changed the screen design. - Requires iOS9.2 or later. 2.1 03/05/2016 - Add the display function of the long-term average equivalent noise level. - Code optimization. 2.0 12/12/2015 - Support for the background operation. - Code optimization. 1.3 05/28/2015 - Supported iOS8. - Code optimization. - Changed screen design. 1.2 03/25/2015 - Slight adjustment of the reference level. If you enjoy using the app, please take a minute to leave a positive review. This really helps and keeps us motivating to work on new updates ! 1.1 09/03/2014 1.0 06/09/2014
Previous Versions
Here you can find the changelog of Sound Level Analyzer since it was posted on our website on 2023-07-03 17:12:25.
The latest version is 9.0 and it was updated on 2026-06-21 11:45:06. See below the changes in each version.
Sound Level Analyzer version 9.0
Updated At: 2026-05-26
Changes: Version History - Improved internal processing and performance.
- Requires iOS 26.2 or later. 9.0 Jan 12 - Renewed UI design.
- Requires iOS 18.1 or later. 8.0 12/01/2024 - Improved internal processing and performance.
- Changed the display position of the occurrence time and the maximum level in "Display Max" at P.S. mode.
- Requires iOS 16.6 or later. 7.0 09/30/2023 - Improved internal processing and performance.
- Renewed UI design.
- Requires iOS 15.0 or later. 6.0 10/05/2022 - Replaced a screenshot on the AppStore. 5.0.1 11/06/2021 - Minor improvements.
- Requires iOS15.0 or later. 5.0 11/03/2021 - Minor improvements.
- Requires iOS12.5 or later. 4.2 02/17/2021 - Minor improvements. 4.1 11/04/2020 - Partially changed the FFT frequency display range to match the frequency with high audibility.
- Added processing to prevent erroneous operation during measurement.
- Minor improvement.
- Requires iOS12.4 or later. 4.0 05/18/2020 - Add the measured value display function in 1/3 oct band response analysis.
- Minor improvement.
- Requires iOS12.2 or later. 3.1 04/02/2019 - Changed UI.
- Minor bug fixes and minor improvements.
- Requires iOS12.1 or later. 3.0 11/13/2018 "Sound Level Analyzer" has received the best rating as sound level measurement app in the research paper of the academic journal "Applied Acoustics". (Paper: ”Testing the accuracy of smartphones and sound level meter applications for measuring environmental noise”, Enda Murphy, Eoin A. King ; Applied Acoustics 106(2016)16-22.)
- Minor bug fixed.
- Performance Improvement.
- Requires iOS10.3 or later. 2.3 05/17/2017 - Optimized the code.
- Changed the screen design.
- Requires iOS10.2 or later. 2.2 03/24/2017 Achieved over 100,000 downloads, "Sound Level Analyzer / Lite", #1 sound level meter app for iPhone !
- Changed the screen design.
- Requires iOS9.2 or later. 2.1 03/05/2016 - Add the display function of the long-term average equivalent noise level.
- Code optimization. 2.0 12/12/2015 - Support for the background operation.
- Code optimization. 1.3 05/28/2015 - Supported iOS8.
- Code optimization.
- Changed screen design. 1.2 03/25/2015 - Slight adjustment of the reference level.
If you enjoy using the app, please take a minute to leave a positive review. This really helps and keeps us motivating to work on new updates ! 1.1 09/03/2014 1.0 06/09/2014
Sound Level Analyzer version 9.0
Updated At: 2026-01-12
Changes: - Improved internal processing and performance.
- Requires iOS 26.2 or later.
Sound Level Analyzer version 8.0
Updated At: 2024-12-01
Changes: Dec 1, 2024
Version 8.0
- Renewed UI design.
- Requires iOS 18.1 or later.
Sound Level Analyzer version 7.0
Updated At: 2023-09-30
Changes: Sep 30, 2023
Version 7.0
- Improved internal processing and performance.
- Changed the display position of the occurrence time and the maximum level in "Display Max" at P.S. mode.
- Requires iOS 16.6 or later.
Sound Level Analyzer version 6.0
Updated At: 2022-10-05
Changes: Oct 5, 2022
Version 6.0
- Improved internal processing and performance.
- Renewed UI design.
- Requires iOS 15.0 or later.
Disclaimer
Official App Store Link
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