---
title: "Audio / Spectrum Analyzer - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
description: "This RTA app supports simultaneous display of "audio waveform" and "amplitude spectrum" (size of FFT calculation result for each frequency) for audio signals input from a microphone. (FFT: Fast Fourie"
---

# Audio / Spectrum Analyzer — United Kingdom
> RTA (FFT / Octave Analysis)

![Audio / Spectrum Analyzer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/d2/26/6d/d2266d4a-258f-5694-5091-eb5004a19689/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Loop-Sessions.LLC](https://apptail.io/developer/loop-sessionsllc-ohc)
**Category:** Music
**Rating:** 4.5/5 (119 ratings)
**Price:** Free
**Bundle ID:** com.loopsessions.AudioSpectrumAnalyzer
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 2.2.1 (released 2026-04-13)
**Original Release:** 2020-05-18
**Languages:** English, Japanese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id1508848574)
**AppTail Page:** [https://apptail.io/app/audio-spectrum-analyzer-DmO/united-kingdom](https://apptail.io/app/audio-spectrum-analyzer-DmO/united-kingdom)

## Audio / Spectrum Analyzer Description
This RTA app supports simultaneous display of "audio waveform" and "amplitude spectrum" (size of FFT calculation result for each frequency) for audio signals input from a microphone.
(FFT: Fast Fourier Transform, RTA: Real Time Analyzer)

[Features]
- Supports simultaneous display of waveform / spectrum.
- Supports orientation both portrait and landscape.
- Selectable configuration of "waveform" / "spectrum" display.
- Selectable FFT size.
- Selectable Spectrum Average.
- Selectable window function. (used in spectrum calculation)
- Selectable frequency weighting. (Flat, dBA, dBC)
- Selectable the type of expressing the X direction (frequency) of the spectrum. (Linear, Log)
- Displays the peak level and its frequency of the spectrum.
- Peak Hold (displays the results of holding past peak values ​​of the spectrum).
- Octave Analysis (displays the spectrum divided into octave bands).
- Generates the audio signal (Sine, Triangle, Squire, Saw)
- Generates the noise signal (white noise, pink noise)
- Pitch meter display.


[Setting items]
1. Screen structure :
Screen configuration can be selected.
- Wave: Display waveform only.
- Spectrum: Display spectrum only.
- Vertical: Display waveform / spectrum vertically.
- Horizon: Display waveform / spectrum horizontally.

2. Spectrum X Scale Type :
Selectable the type of expressing the X direction (frequency) of the spectrum.
- Linear: Distributed at equal intervals
- Log: The intervals increase logarithmically

3. FFT size :
Selectable FFT size. (number of samples used when performing FFT)
1024, 2048, 4096, 8192

4. Spectrum Average
Number of spectrum average for a display of spectrum. (init value: 1)
Higher value will make the spectrum less noisy and more smooth, at the cost of lower time resolution.
1, 2, 4, 8

5. Window function :
Selectable window function (multiplication just before FFT) used for spectrum calculation.
Hanning, Hamming, Blackman, No window

6. Frequency Weighting :
Selectable frequency weighting.
- Flat (Z-weighting): No frequency weighting is applied.
- dBA (A-weighting): Frequency response that takes into account human hearing.
- dBC (C-weighting): Relatively flat response.

7. Peak Hold :
Displays the results of holding the past maximum values ​​(peak values) of the spectrum.

8. Octave Analysis :
Displays the results of classifying the spectrum into octave bands.
Division method:
- FFT: Spectral display
- 1/12, 1/6, 1/3, 1 octave: Display divided into octave bands
Calculation method:
- Max: Displays the maximum spectrum value in each band
- Average: Displays the average spectrum value in each band

9. Generates the audio signal :
Set the audio signal to be generated.
- There are 4 types of waveform. (Sine, Triangle, Squire, Saw)
- It can set the value of the frequency in 20Hz - 20000Hz.

10. Generates the noise signal :
Set the noise signal to be generated.
- There are 2 types of noise. (White noise, pink noise)
- The volume can be adjusted.


[Other]
- Supports background color selection (black, white).
- Supports adjusting the waveform line width. (1 ~ 5 px)
- Supports spectrum bar color selection (solid, colorful).
- Supports Bluetooth connection policy selection (disabled, HFP, A2DP).
- Supports scaling of waveform/spectrum screens in the Y direction (magnification: 0.5 - 2.0).
- Supports scaling of spectrum screens in the X direction (magnification: 1.0 - 16.0).


[Information]
- The vertical line spacing in the waveform display is 2 mSec.
- The spectrum calculation uses the vDSP library.


If you need multi audio signals, please try "Multiple Tone Generator" from the link on the setting screen.
This app generates the audio signal of 6 ch (Up to 16 ch).

This app can hide ads by In-App Purchase. If you like this app, we hope you can use it.

## Audio / Spectrum Analyzer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bd/3e/41/bd3e41e5-642c-bd8a-bd06-26a6bbe9f297/bg_224_2064_U00d72752_en_01.png/2064x2752.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d5/c7/27/d5c7273e-41a7-0652-603b-3a02dda31fa6/bg_224_2064_U00d72752_en_02.png/2064x2752.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/cc/c6/7a/ccc67a5f-6c78-3c89-186f-a594d4bb94c2/bg_224_2064_U00d72752_en_03.png/2064x2752.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/37/85/c4/3785c4ac-d0e9-0ee7-4929-4b1e7d5fd0fa/bg_224_2064_U00d72752_en_04.png/2064x2752.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7d/4d/6a/7d4d6a65-0303-2a63-0d4e-454917ed7a7b/bg_224_2064_U00d72752_en_05.png/2064x2752.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/bc/14/92/bc14928a-5230-f434-b0b4-b7a997038ae0/bg_224_2064_U00d72752_en_06.png/2064x2752.png)

## Audio / Spectrum Analyzer Rating Breakdown in United Kingdom
- 5 stars: 89 (75%)
- 4 stars: 18 (15%)
- 3 stars: 4 (3%)
- 2 stars: 0 (0%)
- 1 stars: 8 (7%)

## Audio / Spectrum Analyzer Reviews in United Kingdom

### ***** "Great little app"
Helping me track down a background hum
-- Musidorus, 2024-03-18

### ***** "Informative"
Simple, easy to use and works great.
-- HanNorBast, 2024-02-16

### *---- "Why so many tracking cookies?"
Installed and uninstalled within 30 seconds. Why on earth dies an audio analyser app need to put advertising and tracking cookies on my iPad?

Especially a paid app!!
-- IMHO (Probably), 2023-12-23

### ***** "Very useful app"
Having only used the app for a short time, I’m impressed with its accuracy, the add at the bottom of the screen is hardly noticeable and only 99p to remove, what have you got to loose 😁
-- andywilk0, 2020-10-20

[View all Audio / Spectrum Analyzer reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Audio / Spectrum Analyzer In-App Purchases
| Item | Price |
|------|-------|
| Always remove banner ads. | £0.89 |

## Audio / Spectrum Analyzer Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Czechia | Music | #116 |
| Top Free | Vietnam | Music | #132 |
| Top Free | Japan | Music | #135 |
| Top Free | Ecuador | Music | #176 |
| Top Free | Belarus | Music | #190 |
| Top Free | South Korea | Music | #195 |
| Top Free | Netherlands | Music | #201 |
| Top Free | Italy | Music | #203 |
| Top Free | Austria | Music | #204 |
| Top Free | Switzerland | Music | #205 |
| Top Free | Hungary | Music | #213 |
| Top Free | Spain | Music | #232 |
| Top Free | Indonesia | Music | #238 |
| Top Free | Poland | Music | #245 |
| Top Free | Brazil | Music | #245 |
| Top Free | Russia | Music | #247 |
| Top Free | Argentina | Music | #255 |
| Top Free | Hong Kong SAR China | Music | #262 |
| Top Free | Germany | Music | #281 |
| Top Free | Philippines | Music | #282 |
| Top Free | Denmark | Music | #295 |
| Top Free | Romania | Music | #296 |
| Top Free | Mexico | Music | #304 |
| Top Free | Taiwan | Music | #305 |
| Top Free | China | Music | #309 |
| Top Free | Norway | Music | #317 |
| Top Free | Belgium | Music | #319 |
| Top Free | Thailand | Music | #328 |
| Top Free | Canada | Music | #332 |
| Top Free | France | Music | #341 |
| Top Free | Greece | Music | #345 |
| Top Free | Ireland | Music | #352 |
| Top Free | Ukraine | Music | #374 |
| Top Free | Israel | Music | #393 |
| Top Free | India | Music | #427 |
| Top Free | Türkiye | Music | #431 |
| Top Free | Australia | Music | #441 |
| Top Free | Lebanon | Music | #444 |
| Top Free | United States | Music | #444 |
| Top Free | Kazakhstan | Music | #457 |
| Top Free | Portugal | Music | #483 |

## Audio / Spectrum Analyzer Discovered Keywords
- audio / spectrum analyzer

## Apps Similar to Audio / Spectrum Analyzer
- [RTA Audio](https://apptail.io/app/rta-audio-Loc/united-kingdom)
- [音频频谱检测仪 - 声音分析和噪音分贝仪](https://apptail.io/app/app-xIg/united-kingdom)
- [Tone Generator: Audio Sound Hz](https://apptail.io/app/tone-generator-audio-sound-hz-jql/united-kingdom)
- [Mobile Tools by AudioControl](https://apptail.io/app/mobile-tools-by-audiocontrol-LbJ/united-kingdom)
- [Audio Spectrum Analyzer Pro](https://apptail.io/app/audio-spectrum-analyzer-pro-BmO/united-kingdom)
- [Audio Spectrum Analyzer dB RTA](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/united-kingdom)
- [Mic Spectrum Analyzer](https://apptail.io/app/mic-spectrum-analyzer-GmO/united-kingdom)
- [AudioAnalyzerApp](https://apptail.io/app/audioanalyzerapp-Ullb/united-kingdom)
- [AUDIIO - RTA Analyzer](https://apptail.io/app/audiio-rta-analyzer-Vllb/united-kingdom)
- [Pitch Checker: Chromatic Tuner](https://apptail.io/app/pitch-checker-chromatic-tuner-Wllb/united-kingdom)

## Audio / Spectrum Analyzer Available In
- [Japan](https://apptail.io/app/audio-spectrum-analyzer-DmO/japan)
- [United States](https://apptail.io/app/audio-spectrum-analyzer-DmO/united-states)
- [Vietnam](https://apptail.io/app/audio-spectrum-analyzer-DmO/vietnam)
- [China](https://apptail.io/app/audio-spectrum-analyzer-DmO/china)
- [Germany](https://apptail.io/app/audio-spectrum-analyzer-DmO/germany)
- [Brazil](https://apptail.io/app/audio-spectrum-analyzer-DmO/brazil)
- [Italy](https://apptail.io/app/audio-spectrum-analyzer-DmO/italy)
- [United Kingdom](https://apptail.io/app/audio-spectrum-analyzer-DmO/united-kingdom)
- [Mexico](https://apptail.io/app/audio-spectrum-analyzer-DmO/mexico)
- [Canada](https://apptail.io/app/audio-spectrum-analyzer-DmO/canada)
- [France](https://apptail.io/app/audio-spectrum-analyzer-DmO/france)
- [South Korea](https://apptail.io/app/audio-spectrum-analyzer-DmO/south-korea)
- [Russia](https://apptail.io/app/audio-spectrum-analyzer-DmO/russia)
- [Thailand](https://apptail.io/app/audio-spectrum-analyzer-DmO/thailand)
- [Taiwan](https://apptail.io/app/audio-spectrum-analyzer-DmO/taiwan)
- [Netherlands](https://apptail.io/app/audio-spectrum-analyzer-DmO/netherlands)
- [Australia](https://apptail.io/app/audio-spectrum-analyzer-DmO/australia)
- [India](https://apptail.io/app/audio-spectrum-analyzer-DmO/india)
- [Spain](https://apptail.io/app/audio-spectrum-analyzer-DmO/spain)
- [Poland](https://apptail.io/app/audio-spectrum-analyzer-DmO/poland)
- [Hungary](https://apptail.io/app/audio-spectrum-analyzer-DmO/hungary)
- [Indonesia](https://apptail.io/app/audio-spectrum-analyzer-DmO/indonesia)
- [Belgium](https://apptail.io/app/audio-spectrum-analyzer-DmO/belgium)
- [Czechia](https://apptail.io/app/audio-spectrum-analyzer-DmO/czechia)
- [Romania](https://apptail.io/app/audio-spectrum-analyzer-DmO/romania)
- [Austria](https://apptail.io/app/audio-spectrum-analyzer-DmO/austria)
- [Switzerland](https://apptail.io/app/audio-spectrum-analyzer-DmO/switzerland)
- [Argentina](https://apptail.io/app/audio-spectrum-analyzer-DmO/argentina)
- [Ukraine](https://apptail.io/app/audio-spectrum-analyzer-DmO/ukraine)
- [Colombia](https://apptail.io/app/audio-spectrum-analyzer-DmO/colombia)
- [Chile](https://apptail.io/app/audio-spectrum-analyzer-DmO/chile)
- [Sweden](https://apptail.io/app/audio-spectrum-analyzer-DmO/sweden)
- [Hong Kong SAR China](https://apptail.io/app/audio-spectrum-analyzer-DmO/hong-kong)
- [Türkiye](https://apptail.io/app/audio-spectrum-analyzer-DmO/turkey)
- [Slovakia](https://apptail.io/app/audio-spectrum-analyzer-DmO/slovakia)
- [Greece](https://apptail.io/app/audio-spectrum-analyzer-DmO/greece)
- [Portugal](https://apptail.io/app/audio-spectrum-analyzer-DmO/portugal)
- [Singapore](https://apptail.io/app/audio-spectrum-analyzer-DmO/singapore)
- [Israel](https://apptail.io/app/audio-spectrum-analyzer-DmO/israel)
- [Philippines](https://apptail.io/app/audio-spectrum-analyzer-DmO/philippines)
- [South Africa](https://apptail.io/app/audio-spectrum-analyzer-DmO/south-africa)
- [Kazakhstan](https://apptail.io/app/audio-spectrum-analyzer-DmO/kazakhstan)
- [Bulgaria](https://apptail.io/app/audio-spectrum-analyzer-DmO/bulgaria)
- [Malaysia](https://apptail.io/app/audio-spectrum-analyzer-DmO/malaysia)
- [Denmark](https://apptail.io/app/audio-spectrum-analyzer-DmO/denmark)
- [United Arab Emirates](https://apptail.io/app/audio-spectrum-analyzer-DmO/united-arab-emirates)
- [Dominican Republic](https://apptail.io/app/audio-spectrum-analyzer-DmO/dominican-republic)
- [Lithuania](https://apptail.io/app/audio-spectrum-analyzer-DmO/lithuania)
- [Peru](https://apptail.io/app/audio-spectrum-analyzer-DmO/peru)
- [Norway](https://apptail.io/app/audio-spectrum-analyzer-DmO/norway)
- [Croatia](https://apptail.io/app/audio-spectrum-analyzer-DmO/croatia)
- [Slovenia](https://apptail.io/app/audio-spectrum-analyzer-DmO/slovenia)
- [New Zealand](https://apptail.io/app/audio-spectrum-analyzer-DmO/new-zealand)
- [Ecuador](https://apptail.io/app/audio-spectrum-analyzer-DmO/ecuador)
- [Belarus](https://apptail.io/app/audio-spectrum-analyzer-DmO/belarus)
- [Uzbekistan](https://apptail.io/app/audio-spectrum-analyzer-DmO/uzbekistan)
- [Sri Lanka](https://apptail.io/app/audio-spectrum-analyzer-DmO/sri-lanka)
- [Malta](https://apptail.io/app/audio-spectrum-analyzer-DmO/malta)
- [Panama](https://apptail.io/app/audio-spectrum-analyzer-DmO/panama)
- [Latvia](https://apptail.io/app/audio-spectrum-analyzer-DmO/latvia)
- [Ireland](https://apptail.io/app/audio-spectrum-analyzer-DmO/ireland)
- [Ghana](https://apptail.io/app/audio-spectrum-analyzer-DmO/ghana)
- [Kenya](https://apptail.io/app/audio-spectrum-analyzer-DmO/kenya)
- [Lebanon](https://apptail.io/app/audio-spectrum-analyzer-DmO/lebanon)
- [Uganda](https://apptail.io/app/audio-spectrum-analyzer-DmO/uganda)
- [Madagascar](https://apptail.io/app/audio-spectrum-analyzer-DmO/madagascar)
- [Finland](https://apptail.io/app/audio-spectrum-analyzer-DmO/finland)
- [Estonia](https://apptail.io/app/audio-spectrum-analyzer-DmO/estonia)
- [Saudi Arabia](https://apptail.io/app/audio-spectrum-analyzer-DmO/saudi-arabia)
- [Azerbaijan](https://apptail.io/app/audio-spectrum-analyzer-DmO/azerbaijan)
- [Uruguay](https://apptail.io/app/audio-spectrum-analyzer-DmO/uruguay)
- [Angola](https://apptail.io/app/audio-spectrum-analyzer-DmO/angola)
- [Luxembourg](https://apptail.io/app/audio-spectrum-analyzer-DmO/luxembourg)
- [Bahrain](https://apptail.io/app/audio-spectrum-analyzer-DmO/bahrain)
- [Armenia](https://apptail.io/app/audio-spectrum-analyzer-DmO/armenia)
- [Nigeria](https://apptail.io/app/audio-spectrum-analyzer-DmO/nigeria)
- [Iceland](https://apptail.io/app/audio-spectrum-analyzer-DmO/iceland)
- [North Macedonia](https://apptail.io/app/audio-spectrum-analyzer-DmO/north-macedonia)
- [Cyprus](https://apptail.io/app/audio-spectrum-analyzer-DmO/cyprus)
- [Pakistan](https://apptail.io/app/audio-spectrum-analyzer-DmO/pakistan)
- [Tunisia](https://apptail.io/app/audio-spectrum-analyzer-DmO/tunisia)
- [Brunei](https://apptail.io/app/audio-spectrum-analyzer-DmO/brunei)
- [Nepal](https://apptail.io/app/audio-spectrum-analyzer-DmO/nepal)
- [Barbados](https://apptail.io/app/audio-spectrum-analyzer-DmO/barbados)
- [Paraguay](https://apptail.io/app/audio-spectrum-analyzer-DmO/paraguay)
- [Egypt](https://apptail.io/app/audio-spectrum-analyzer-DmO/egypt)
- [Cayman Islands](https://apptail.io/app/audio-spectrum-analyzer-DmO/cayman-islands)
- [Kuwait](https://apptail.io/app/audio-spectrum-analyzer-DmO/kuwait)
- [Jamaica](https://apptail.io/app/audio-spectrum-analyzer-DmO/jamaica)
- [Algeria](https://apptail.io/app/audio-spectrum-analyzer-DmO/algeria)

---

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