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

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

![Audio / Spectrum Analyzer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/e7/c8/09/e7c8090a-8d05-0f4a-56d8-0f41cc83b2c3/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 (11 ratings)
**Price:** Free
**Bundle ID:** com.loopsessions.AudioSpectrumAnalyzer
**Store:** Apple App Store
**Country:** Denmark
**Version:** 2.2.0 (released 2026-03-26)
**Original Release:** 2020-05-18
**Languages:** English, Japanese

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

## Audio / Spectrum Analyzer Description
This RTA app supports simultaneous display of &quot;audio waveform&quot; and &quot;amplitude spectrum&quot; (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 &quot;waveform&quot; / &quot;spectrum&quot; display.
- Selectable FFT size.
- Selectable window function. (used in spectrum calculation)
- Selectable frequency weighting. (A-weighting, C-weighting, Flat/Z-weighting)
- 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. FFT size :
Selectable FFT size. (number of samples used when performing FFT)
1024, 2048, 4096, 8192

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

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

5. 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

6. Spectrum Control Direction :
Select the zoom / scroll direction of the spectrum: X (frequency) or Y (amplitude).

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 &quot;Multiple Tone Generator&quot; 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 Denmark
- 5 stars: 8 (73%)
- 4 stars: 2 (18%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 1 (9%)


## Audio / Spectrum Analyzer In-App Purchases
| Item | Price |
|------|-------|
| Always remove banner ads. | 29.00 r |

## Audio / Spectrum Analyzer Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Vietnam | Music | #88 |
| Top Free | Czechia | Music | #135 |
| Top Free | Hungary | Music | #139 |
| Top Free | South Korea | Music | #149 |
| Top Free | Hong Kong SAR China | Music | #154 |
| Top Free | Japan | Music | #164 |
| Top Free | Romania | Music | #174 |
| Top Free | Poland | Music | #190 |
| Top Free | Taiwan | Music | #194 |
| Top Free | Thailand | Music | #196 |
| Top Free | Russia | Music | #210 |
| Top Free | Italy | Music | #212 |
| Top Free | Sweden | Music | #218 |
| Top Free | Austria | Music | #220 |
| Top Free | Brazil | Music | #229 |
| Top Free | Germany | Music | #239 |
| Top Free | Switzerland | Music | #279 |
| Top Free | Singapore | Music | #283 |
| Top Free | Finland | Music | #284 |
| Top Free | Netherlands | Music | #286 |
| Top Free | India | Music | #286 |
| Top Free | France | Music | #286 |
| Top Free | Ireland | Music | #287 |
| Top Free | Chile | Music | #288 |
| Top Free | Argentina | Music | #290 |
| Top Free | Canada | Music | #299 |
| Top Free | Denmark | Music | #300 |
| Top Free | Ukraine | Music | #310 |
| Top Free | Israel | Music | #312 |
| Top Free | Norway | Music | #315 |
| Top Free | Belarus | Music | #347 |
| Top Free | Malaysia | Music | #348 |
| Top Free | China | Music | #353 |
| Top Free | Spain | Music | #354 |
| Top Free | Mexico | Music | #355 |
| Top Free | Indonesia | Music | #374 |
| Top Free | Kazakhstan | Music | #394 |
| Top Free | Philippines | Music | #409 |
| Top Free | United States | Music | #417 |
| Top Free | Peru | Music | #422 |
| Top Free | Australia | Music | #422 |
| Top Free | Belgium | Music | #439 |
| Top Free | United Kingdom | Music | #455 |
| Top Free | Portugal | Music | #497 |

## Audio / Spectrum Analyzer Discovered Keywords
- spectrum analyzer
- audio spectrum analyzer
- amplitude
- oscilloscope
- keysight oscilloscope mobile
- audio oscilloscope
- audio / spectrum analyzer

## Apps Similar to Audio / Spectrum Analyzer
- [Spectrum Analyzer: Spectrogram](https://apptail.io/app/spectrum-analyzer-spectrogram-xIg/denmark)
- [Tone Generator: Audio Sound Hz](https://apptail.io/app/tone-generator-audio-sound-hz-jql/denmark)
- [Animoog Z Synthesizer](https://apptail.io/app/animoog-z-synthesizer-GtA/denmark)
- [Spectre Analyzer for Logic Pro](https://apptail.io/app/spectre-analyzer-for-logic-pro-hYD/denmark)
- [Audio Spectrum Analyzer Pro](https://apptail.io/app/audio-spectrum-analyzer-pro-BmO/denmark)
- [AUDIIO - RTA Analyzer](https://apptail.io/app/audiio-rta-analyzer-Vllb/denmark)
- [Pitch Checker: Chromatic Tuner](https://apptail.io/app/pitch-checker-chromatic-tuner-Wllb/denmark)
- [Quiztones: EQ Ear Training](https://apptail.io/app/quiztones-eq-ear-training-irPb/denmark)
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## 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)
- [Australia](https://apptail.io/app/audio-spectrum-analyzer-DmO/australia)
- [India](https://apptail.io/app/audio-spectrum-analyzer-DmO/india)
- [Taiwan](https://apptail.io/app/audio-spectrum-analyzer-DmO/taiwan)
- [Spain](https://apptail.io/app/audio-spectrum-analyzer-DmO/spain)
- [Poland](https://apptail.io/app/audio-spectrum-analyzer-DmO/poland)
- [Netherlands](https://apptail.io/app/audio-spectrum-analyzer-DmO/netherlands)
- [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)
- [Austria](https://apptail.io/app/audio-spectrum-analyzer-DmO/austria)
- [Romania](https://apptail.io/app/audio-spectrum-analyzer-DmO/romania)
- [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)
- [Chile](https://apptail.io/app/audio-spectrum-analyzer-DmO/chile)
- [Colombia](https://apptail.io/app/audio-spectrum-analyzer-DmO/colombia)
- [Hong Kong SAR China](https://apptail.io/app/audio-spectrum-analyzer-DmO/hong-kong)
- [Sweden](https://apptail.io/app/audio-spectrum-analyzer-DmO/sweden)
- [Türkiye](https://apptail.io/app/audio-spectrum-analyzer-DmO/turkey)
- [Portugal](https://apptail.io/app/audio-spectrum-analyzer-DmO/portugal)
- [Singapore](https://apptail.io/app/audio-spectrum-analyzer-DmO/singapore)
- [Slovakia](https://apptail.io/app/audio-spectrum-analyzer-DmO/slovakia)
- [Israel](https://apptail.io/app/audio-spectrum-analyzer-DmO/israel)
- [Greece](https://apptail.io/app/audio-spectrum-analyzer-DmO/greece)
- [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)
- [Dominican Republic](https://apptail.io/app/audio-spectrum-analyzer-DmO/dominican-republic)
- [United Arab Emirates](https://apptail.io/app/audio-spectrum-analyzer-DmO/united-arab-emirates)
- [Slovenia](https://apptail.io/app/audio-spectrum-analyzer-DmO/slovenia)
- [Lithuania](https://apptail.io/app/audio-spectrum-analyzer-DmO/lithuania)
- [Croatia](https://apptail.io/app/audio-spectrum-analyzer-DmO/croatia)
- [Norway](https://apptail.io/app/audio-spectrum-analyzer-DmO/norway)
- [Peru](https://apptail.io/app/audio-spectrum-analyzer-DmO/peru)
- [Ecuador](https://apptail.io/app/audio-spectrum-analyzer-DmO/ecuador)
- [New Zealand](https://apptail.io/app/audio-spectrum-analyzer-DmO/new-zealand)
- [Belarus](https://apptail.io/app/audio-spectrum-analyzer-DmO/belarus)
- [Sri Lanka](https://apptail.io/app/audio-spectrum-analyzer-DmO/sri-lanka)
- [Uzbekistan](https://apptail.io/app/audio-spectrum-analyzer-DmO/uzbekistan)
- [Latvia](https://apptail.io/app/audio-spectrum-analyzer-DmO/latvia)
- [Ireland](https://apptail.io/app/audio-spectrum-analyzer-DmO/ireland)
- [Malta](https://apptail.io/app/audio-spectrum-analyzer-DmO/malta)
- [Panama](https://apptail.io/app/audio-spectrum-analyzer-DmO/panama)
- [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)
- [Azerbaijan](https://apptail.io/app/audio-spectrum-analyzer-DmO/azerbaijan)
- [Madagascar](https://apptail.io/app/audio-spectrum-analyzer-DmO/madagascar)
- [Saudi Arabia](https://apptail.io/app/audio-spectrum-analyzer-DmO/saudi-arabia)
- [Estonia](https://apptail.io/app/audio-spectrum-analyzer-DmO/estonia)
- [Finland](https://apptail.io/app/audio-spectrum-analyzer-DmO/finland)
- [Armenia](https://apptail.io/app/audio-spectrum-analyzer-DmO/armenia)
- [Luxembourg](https://apptail.io/app/audio-spectrum-analyzer-DmO/luxembourg)
- [Nigeria](https://apptail.io/app/audio-spectrum-analyzer-DmO/nigeria)
- [Iceland](https://apptail.io/app/audio-spectrum-analyzer-DmO/iceland)
- [Bahrain](https://apptail.io/app/audio-spectrum-analyzer-DmO/bahrain)
- [Uruguay](https://apptail.io/app/audio-spectrum-analyzer-DmO/uruguay)
- [Angola](https://apptail.io/app/audio-spectrum-analyzer-DmO/angola)
- [Algeria](https://apptail.io/app/audio-spectrum-analyzer-DmO/algeria)
- [Cyprus](https://apptail.io/app/audio-spectrum-analyzer-DmO/cyprus)
- [Tunisia](https://apptail.io/app/audio-spectrum-analyzer-DmO/tunisia)
- [Nepal](https://apptail.io/app/audio-spectrum-analyzer-DmO/nepal)
- [Brunei](https://apptail.io/app/audio-spectrum-analyzer-DmO/brunei)
- [Kuwait](https://apptail.io/app/audio-spectrum-analyzer-DmO/kuwait)
- [Jamaica](https://apptail.io/app/audio-spectrum-analyzer-DmO/jamaica)
- [North Macedonia](https://apptail.io/app/audio-spectrum-analyzer-DmO/north-macedonia)
- [Cayman Islands](https://apptail.io/app/audio-spectrum-analyzer-DmO/cayman-islands)
- [Egypt](https://apptail.io/app/audio-spectrum-analyzer-DmO/egypt)
- [Paraguay](https://apptail.io/app/audio-spectrum-analyzer-DmO/paraguay)
- [Pakistan](https://apptail.io/app/audio-spectrum-analyzer-DmO/pakistan)

---

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