mr spectra

2.31

Sumanta Raha

4.37

84 reviews

10,000+
Downloads

Free

FFT Audio Spectrum Analyzer with Weighting Filters. Enjoy as a Music Mood Light.

4.37 · 84 reviews · 10,000+ downloads

Pros & Cons

FFT-based real-time analysis provides immediate visual feedback
Integrated mood lighting through customizable strobe lights
Weighting filters (A/C/Z) enable nuanced sound analysis
Flexible visuals with multiple scopes and customizable color/display options

No explicit real-time RTA, octave analysis, or calibration workflow listed
Only device microphone input is documented; external mic support is not specified
Not ranked in any top lists

About mr spectra

mr spectra is a music & audio app developed by Sumanta Raha.

Download Statistics

mr spectra has been downloaded 14 thousand times. In the last 30 days, the app was downloaded 11 times.

User Ratings

mr spectra is rated 4.37 out of 5 stars. The rating is based on 84 ratings.

App Information

mr spectra is FREE to download. The APK download size is 2.01 MB. The latest version available is 2.31. The last update was on July 26, 2025.

Technical Requirements

mr spectra requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2020.

Description

mr spectra is an fft based audio spectrum analyzer with strobe lights and built-in weighting filters (A-weighting for human hearing, C-weighting for machine sounds and Z-weighting with no filter).

More data about mr spectra

Price	Free to download
Total downloads	14 thousand
Recent downloads	11
Rating	4.37 based on 84 ratings
Ranking	Not ranked
Version	2.31
APK size	2.01 MB
Number of libraries	14
Designed for Android	6.0+
Suitable for	Everyone
Ads	Contains ads

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Alternative downloads for the mr spectra app

mr spectra compared with similar apps

Common keywords of similar apps

Lights Settings Strobe Scope Mr Spectra Filters Treble Enjoy Music Mood Light Based Show Max Values Wave Spectrogram Bass Mid Rms Base Weighting Db Decibel Fft Audio Level Spectrum Analyzer Sound Amplitude

Keywords missing from this app

Frequency Meter Noise Time Spl Display Measurement Real App Data Calibration Levels Octave Microphone Mode Measure Frequencies Rta Pro Device Peak Generator Recording Signal Features Recent Screen Hearing Test Fast Scale Analysis Leq Reference Calibrate Video Decibels Low Dba Response

Google Play Rating history and histogram

Rating history

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Downloads over time

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mr spectra has been downloaded 14 thousand times. Over the past 30 days, it has been downloaded 11 times.

Changelog of mr spectra

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Developer information for Sumanta Raha

Sumanta Raha

contact@msraha.in

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Comments on mr spectra for Android

★★★★★ Khaled Akbar · Feb 26, 2023

I hope devs will install options for audio internal output not only mic output coz dog barkin and cock crowing will enter the simulation process thank you for the app devs

★★★★★ Khaled Akbar · Aug 21, 2021

Awesome visualizer it brightens my life Thank you for the response I just forgot to look at the Settings recently 😮🧡🧡🧡 may I suggest the scopes must be color white or gray and has switched for mic or audio internal and background pick up gallery thanks

★★★★★ Jason Collins · May 30, 2021

I really like this app. It's especially fun to watch the app while playing music on my phone. I do have to say this app is very accurate with the dB reading. I work at the airport and fueling an Airbus 320 with the airpacs running is at 82dB. My BAFX Decibel meter/Sound pressure wave meter reads the same as this app on my Samsung S10e Android 11. I personally wish I could see a widget or live screen saver if that makes any sense. I love the colors. I want to write more, but I'm at my limit.

★★☆☆☆ Robin Sparrow · Apr 27, 2022

Limited frequency range: only goes up to 4000Hz, and you can't adjust it. Frequency range is also locked to a linear scale when it always makes more sense to display frequency logarithmically.

★☆☆☆☆ Robert Struzinski · Aug 3, 2025

What good is an audio spectrum app that goes only to 4kHz? Try SOUND ANALYZER APP, it's the only free audio test app that works correctly, you'll need to use an external test tone, but they're free in other apps.

Google Play Rankings for mr spectra

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Technologies used by mr spectra

7 permissions · 14 libraries

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