Sound Analyzer

67 reviews
Content rating
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About this app

- Wide range of analysis parameter settings
- Real-time display of peak frequencies and amplitudes (up to 10)
- Frequency (horizontal axis) can be switched between logarithmic and linear scales.
- Note name display mode (displays pitch in A to G♯ note names and error (in cents))
- Peak hold function
- Display range can be changed (zoom, scroll) by touch operation
- Automatic screen rotation is supported (can be fixed by setting)
- No ads

Analysis Parameters
- Highest frequency: Select from 2kHz to 96kHz (The frequency that can be set may vary depending on the device model)
- Minimum frequency: 0.25 Hz, 0.5 Hz, 1.0 Hz, 2.5 Hz, 5 Hz, 10 Hz, 25 Hz, 50 Hz
- Update rate: 45fps, 30fps, 15fps, 5fps, 1fps

This app allows you to increase the maximum frequency up to 96kHz, but please note that the settings above 24kHz are mainly for high-performance microphones, not for built-in microphones of common devices.
(In general devices available on the market today, data in the high frequency range above about 22 kHz is pseudo-created by interpolation processing on the hardware. Normally, the spectrum in this range contains only a faint noise of less than -60 dB, but depending on the model, Larger noises may appear at certain frequencies such as 48 kHz or 96 kHz due to the interpolation process described above.
Updated on
Dec 23, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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67 reviews
Patuleanu Tudor
January 22, 2023
Excellent. How do I make it show the intensity relative to a soundproofed room (or a very quiet place)? I find it unituitive to have minus decibels (relative to what sound source)? Decibels should always be expressed relative to a quiet source (by convention that would have +0 dB). Update: Thanks for the reply. It makes sense now, although, one question remains: in dBFS what is the maximum level corresponding to 0 dB? Seems to me that this is device specific, or is there a standard?
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January 22, 2023
In general, sound pressure level units (e.g. dB SPL) cannot be used in applications for Android. This is because the audio input characteristics of mobile devices are unknown. Instead, Sound Analyzer uses "dB FS" for decibel values. UPDATE: The actual sound pressure corresponding to 0 dB depends on the device. There is no standard.
Severn Beach
August 15, 2020
Just bought this app. Needed to buy as we were using the free version for to long. Really helped in a noise issue we are having with a local factory over the last year. Got the council to do a survey, the output from this app ... perfect match to thier mega expensive calibrated kit. Great app. Suggestion. Peak hold would be nice and log file output. Thanks for a great product. SB United Kingdom
16 people found this review helpful
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Andrew Grant
August 10, 2020
Tried a few of these apps and liked this one best. The display is clear and the label text size is useful. An option to save apex analysis to file would be nice with a user specified recording rate, e.g. 1-10 samples per second.
15 people found this review helpful
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What's new

v1.12.2 ----------------
* Fixed crash when opening Frequency range setting
* Improved stability
v1.12.0 ----------------
* Added waterfall view
* Added view resize bars
* Frequency range indicator now shows the actual display range not the analysis range.
* Added frequency range change dialog (tap on indicator to displayed)
* Added support for Android 13
* Added support for backup and restore of app data
* Bug fixes
* Improved stability