• FrequenSee HD - Audio Analyzer 1
  • FrequenSee HD - Audio Analyzer 2

FrequenSee HD - Audio Analyzer

See your voice, music or test your audio equipment. See whatever your microphone can hear!
The HD version offers more detail than the free version.

This real-time spectrum analyzer (RTA) / audio visualizer features:
- 256 high-quality frequency bands [20Hz to 22kHz]
- Logarithmic frequency scale to match human perception
- Low latency for high responsiveness
- High framerate to see smooth frequency and amplitude movements
- High performance native code using OpenGL ES 2.0
- FFT window size 4096 @ 58 frames per second

Any feedback is welcome.

Category : Music & Audio

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Reviews (27)

Pet. M. Jul 22, 2019     

This is great for helping to hunt feedback in live audio. Fast and accurate!

Arn. B. Feb 20, 2021     

I paid 2 times for the app... Please kindly refund my one payment

Ian. W. Jul 6, 2019     

accurate and reliable i just love it

Mic. L. Nov 25, 2018     

It does what I need and expect it to without muss or fuss.

Sam. S. Feb 6, 2018     

This is a no nonsense app. Zero bloatware. High responsive. No for precise measurements, but more practical in providing the sense of what the sound looks like. Worth buying. However a glaring shortcoming is that the app doesn't support split screen mode.

Edw. H. Sep 1, 2018     

Does what it says it does and it is clean and true. I tune car audio this is so handy.

Hom. J. Jul 2, 2018     

One of the best app on Google store!

Sco. H. Jun 3, 2014     

I will say that there is very little latency, and it's helpful when trying to pinpoint that pesky frequency. However, I found another app that does this, and much more. I'm not in the business of shilling for competing products, but it should suffice to say that there are better apps out there. I'd give it three-and-a-half stars if I could, because it does what it does well.

Mar. W. Jul 4, 2013     

Running on Galaxy S4. Really fast and precise and does the job of devices costing 100's (if not 1000's) of £££'s. One addition that would be amazing would be a feature to zoom in on a desired frequency range for clarity. E.g. between 10 and 100hz.

Sko. B. Apr 15, 2015     

I'm a professional live sound engineer and this app helps wonders . If any feedback occurs or is going to occur i can fix it immediately

cha. p. Jun 5, 2014     

i'm a professional audio engineer. of all the apps i've tried (here and the Apple app store for the iPad), this is hands down the best. i use it to back up what my ears are hearing when mixing shows. "it's that 3.8k?" actually, it's 3.6k. every engineer that sees me using it asks about it. i paid for it because i wasn't enjoying the ads and because it's great.

Chr. P. Oct 20, 2016     

I've used a lot of other frequency analyzer apps and I'm still trying to find one better than this. I am a Sound Engineer and I use it to help find feedback and harsh frequencies.

BaK. Jun 23, 2014     

needs ability to cut out background noise the mic picks up even in silence.

Ric. W. Oct 13, 2013     

Would still like to see the ability to zoom in on frequency ranges for better accuracy still. And a curve tracing capability to allow analysis of room characteristics through playing a frequency sweep.

Lle. R. Feb 13, 2014     

It would be great to see the "average over a few seconds" and a "peak hold" function

Ric. B. Jan 12, 2014     

Great little App and worth the 69p to remove the adds alone from the free version.

Tro. G. Feb 26, 2013     

Absolutely brilliant. This works better than the rta I paid hundreds of dollars for.

Pat. M. Dec 13, 2016     

Mesmerizing and useful, great job!

Rah. S. Jan 15, 2014     

This app is addictive. Very responsive.

A. G. u. Oct 29, 2016     

Worth it!

Jeh. P. Jan 12, 2014     

Helps find feedback noise

bil. m. Oct 21, 2014     

I use this at every gig. Fantastic..

Mar. B. Jul 22, 2014     

It's a good application, worth supporting...

Jef. O. Mar 25, 2015     

Best RTA on the mobile

A. G. u. Jul 12, 2012     

I used the free one for a long time and thought it was good but can see much more in this HD I recommen to any sound engineers tool box. Thank you for this great app.

Pet. R. Mar 9, 2013     

Comes very close to the curves created with devices costing several thousand dollars even with the cheap mic of a cellphone.

Rya. V. Feb 19, 2013     

Incredibly fluid even on my dated phone.