FrequenSee - Spectrum Analyzer v2.1

Daniel Bach

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About this app

Developer Description

See your voice, music or audio ... whatever your microphone can hear!

See your voice, music or test your audio equipment. See whatever your microphone can hear!

This real-time spectrum analyzer (RTA) / audio visualizer features:
- 176 high-quality frequency bands [20Hz to 22kHz]
- Logarithmic frequency scale to match human perception
- Low latency for high responsiveness
- High frame rate to see smooth frequency and amplitude movements
- Low battery drain due to high performance native code
- Fast graphics using OpenGL ES 2.0
- FFT window size 4096 @ 60 frames per second

What's New

- added Android 13 support
- removed ads
- improved audio processing, now using unprocessed float audio input
- some coordinate system changes

Version Information

Version: 2.1
Downloads: 500K+
Updated on: Apr 15, 2023
Released: Aug 27, 2011
Requires: Android 7.0

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FrequenSee - Spectrum Analyzer users say on Google Play

★★★★★

A Google user

I actually tested the accuracy of this in my studio using a signal generator and it was insanely on point. I can imagine tons of ways to use this in the future.

★★★★

Paolo

Practical and reliable, but not very advanced (e.g. no peak frequency detection) and not configurable (e.g. fixed window size).

★★★

Elwyn Green

It works but this is a log spectrum. The ability to switch to a linear spectrum would get 5 stars.

★★

A Google user

Not configurable, no method of saving traces, inaccurate.

★

Robert Struzinski

I put some time into testing a bunch of these audio frequency and decibel apps using 4 different devices and none were able to do anything even close to what real spectrum analyzer was showing! Each device showed a completely incorrect reading. I couldn't even get any apps to match any other apps readings on the same device with them both running at the same time with pink noise sent from real RTA. Incredibly useless, use this to tune a stereo and you'll be wondering what happened to it.