logSPL

Noise meter

Utilities

Music

5 reviews

$1.99

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Details about logSPL

Released
Updated
iOS Version
Age Rating
Size
Devices
Languages

January 7, 2012
October 1, 2024
15.2+
4+
1.05MB
iPhone, iPad, iPod
English
French

Developer of logSPL

Fabien Lefebvre

⭐️5 / 5

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🙌1

Ratings

📼4 scs

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📦w/o updates

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🗣❌ unsupported

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Versions
Price History
Description
FAQ

Version History of logSPL

4.6

November 25, 2023

Re-compiled for latest iOS. Better handling of various screen sizes and shapes.

4.5

February 20, 2022

Re-compiled for latest iOS. Better handling of various screen sizes and shapes.

4.4

January 15, 2020

Optimized for latest iPhone (11) and iOS (13). Note that natively iPhone 11 does NOT support upside down mode (same for all Apps: Safari,...).

4.3

March 1, 2017

Re-compiled with latest iOS

4.2

February 10, 2016

Minor update. iPad users will probably be invited to re-run the 'SET' procedure, when available.

4.1

January 28, 2016

Few minor improvements, including a bug correction: in very particular conditions the 'SET' procedure (relative calibration) applied to an external microphone may have failed. No such issue detected with internal microphone. Users with external microphones should re-run this procedure.

4.0

October 28, 2015

Major update that improves by the way accuracy in higher range of measurement. A new procedure appears, to align internal gains: the 'SET' procedure. Just go to Mic. tab, select 'SET' when available (depending on device type), and follow instructions. It will generate a beep that will last few seconds thus find a quiet room first. Fortunately this procedure is to be run only once. From now logSPL can be seen as a derivative of SPLnFFT. Both Apps will share the same core, with this difference: SPLnFFT is a full featured sound level meter targeting advanced users whereas logSPL is designed to be simple to use, for standard usage, yet with the same accuracy. Note: click on the text to change displayed data and information

3.6

February 26, 2015

Updated to support natively latest architectures (arm64). No change expected from user's point of view

3.5

January 23, 2015

Major update for recent iPads: new offset applied. Before this modification measurements with internal microphone were over-estimated of 10dB on this type of device. No change for iPhones. Any issue regarding installation or any other topic ? Contact me by mail: I cannot answer to comments in iTunes.

3.4

September 27, 2014

Minor update for compatibility with latest iOS release

Price History of logSPL

Description of logSPL

This App is a full featured sound level meter, designed by a signal processing expert. It is iPhone/iPod/iPad compatible and adapts itself to the actual screen resolutions ("HD", "retina"). It consists in two parts: half top for basic features, half bottom for advanced ones (L95, %D, ...). Half top was thus designed to be extremely easy to use. Only two settings are requested: * select 'fast' or 'slow' update rate, which corresponds to 2 different integration periods * select the type of weighting: A or C or Z (Z meaning roughly: no filtering) These settings are saved when exiting the App. Some tips for weighting: * select A to evaluate the feeling of a person against a noise * select Z to balance an audio system Supports upside-down orientation. The min and max values are monitored and displayed in green in the upper view. An average value (Leq, LAeq, ...) is computed on top of this: the green triangle. Take care that this latter corresponds to the logarithm of the average power and not to the average of logarithm values, which is completely different. Integration time for this average value is: all time since start-up of the App or last reset. To reset these extreme and average values, touch the text named RESET. Bottom view is used to display an historical curve. A grid is visible, with lines every 10dB vertical and 10s horizontal. Half bottom now: * a real-time histogram is displayed on left side * it can compute L%: L95, L50, ... * it can make some dosemetering: for this you need to set threshold, criterion and exchange values. This is for advanced users due to the complexity of underlying concepts As for all sound-meter (at any price, hardware or software), you should calibrate it against a reference in order to achieve best accuracy. For this go to Mic. tab to add or remove a fixed offset to the measured values. Any question ? Click on the Facebook icon !

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logSPL: FAQ

Can logSPL be used on iPad devices?

Yes, logSPL can be used on iPad devices.

Who is the app developer of logSPL?

The logSPL app was created by Fabien Lefebvre.

What is the minimum iOS version supported by logSPL?

The minimum supported iOS version for the app is 15.2.

What user rating does the logSPL app have?

The current user rating of the logSPL app is 5.

What category of app is logSPL?

The Logspl App Relates To The Utilities Genre.

What logSPL application version is the current one?

4.6 is the most recent version of the logSPL app.

What is the latest update date for logSPL?

October 1, 2024 is the exact date of the latest logSPL update.

Could you provide information on the release date of logSPL?

The logSPL app became available to the public on February 8, 2023.

What age is logSPL suitable for?

Fabien Lefebvre: The logSPL app is child-friendly.

What are the languages offered by the logSPL app?

logSPL can be used in English, French.

Is logSPL accessible through Apple Arcade's subscription model?

Unfortunately, logSPL is not on Apple Arcade.

Does logSPL allow for in-app purchases?

No, logSPL does not allow for in-app purchases.

Is logSPL specifically engineered for Apple Vision Pro compatibility?

Sorry, logSPL is not specifically engineered for compatibility with Apple Vision Pro.

Does logSPL display any ads?

No, logSPL does not display any ads.

Screenshots of logSPL

$1.99 / $3.99Price

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Reviews of logSPL

Leave a Review logSPL

Excellent Decibel Meter
I am very impressed with the sensitivity and precision of this decibel app. It is easy to use and very responsive to changes in sound. I am using it to evaluate sound levels in relation to selection of HVAC and ventilation systems for a new commercial office building.
Lahontan
10 years ago
Amazing
Used this app to calibrate my 7.1 home theater to 75db on each speaker. It's super easy to use. I found it to be the best to use by setting it on slow and C.
SWeston7
10 years ago
Very practical app
I found this app very useful, it is more practical than other apps I paid for. I use professional Sound Level Meters in my work and this app came handy for rough estimation of Laeq,t and La99. One suggestion for improvement is to enlarge the restart and hold buttons.
Dejna007
10 years ago

See 2 more reviews

logSPL

Noise meter

Details about logSPL

Developer of logSPL

Version History of logSPL

Price History of logSPL

Description of logSPL

logSPL: FAQ

Can logSPL be used on iPad devices?

Who is the app developer of logSPL?

What is the minimum iOS version supported by logSPL?

What user rating does the logSPL app have?

What category of app is logSPL?

What logSPL application version is the current one?

What is the latest update date for logSPL?

Could you provide information on the release date of logSPL?

What age is logSPL suitable for?

What are the languages offered by the logSPL app?

Is logSPL accessible through Apple Arcade's subscription model?

Does logSPL allow for in-app purchases?

Is logSPL specifically engineered for Apple Vision Pro compatibility?

Does logSPL display any ads?

Screenshots of logSPL

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Reviews of logSPL

Leave a Review logSPL

Excellent Decibel Meter

Amazing

Very practical app