# Acoustic Spectrum Pad — Analyze and highlight spectrum

> Audio spectrum analyzer for video and audio files with an eraser function. (iPhone/iPad app by Masahisa Endo.)

- Source: https://appshunter.io/ios/app/acoustic-spectrum-pad/id1541573825 (this page in markdown: same URL + `.md`)
- Developer: [Masahisa Endo](https://appshunter.io/developer/1225016932)
- Category: Utilities, Entertainment
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.1 · 24 MB
- Languages: Arabic, Belarusian, Bosnian, Bulgarian, Burmese, Catalan, Croatian, Czech, Danish, Dutch and 38 more
- Released: 2020-12-08
- Data updated: 2026-06-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/acoustic-spectrum-pad/id1541573825/reviews.md

## What is Acoustic Spectrum Pad?

Usage examples are uploaded on YouTube. Please check it out
https://youtu.be/yofPGJDk_YY

Supported data formats are MOV, MPEG4, WAV, M4A

Log
2021.08  Ver 1.5.1 Released. Add Eraser function
2020.12  Ver 1.0.0 Released

## Key features

- Spectrum analysis
- Highlighting spectrum
- Supports MOV, MPEG4, WAV, M4A
- Eraser function
- YouTube usage examples


## Frequently asked questions about Acoustic Spectrum Pad

### What file formats does Acoustic Spectrum Pad support?

Acoustic Spectrum Pad supports several common data formats including MOV, MPEG4, WAV, and M4A. This allows for analysis of a wide range of video and audio files.

### Does Acoustic Spectrum Pad have ads?

No, Acoustic Spectrum Pad is ad-free. Users can enjoy the full functionality without any advertisements interrupting their experience.

### What is the latest version of Acoustic Spectrum Pad?

The latest version of Acoustic Spectrum Pad is 1.5.2, released on August 14, 2021. This version includes the Eraser function added in version 1.5.1.

### How often is Acoustic Spectrum Pad updated?

Acoustic Spectrum Pad was last updated on August 14, 2021. Previous updates include version 1.5.1 in August 2021 and the initial release of version 1.0.0 in December 2020.

### What devices is Acoustic Spectrum Pad compatible with?

Acoustic Spectrum Pad is compatible with iPhone, iPad, and iPod devices. It is designed for iOS users.

### What is the age rating for Acoustic Spectrum Pad?

Acoustic Spectrum Pad has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Where can I find usage examples for Acoustic Spectrum Pad?

Usage examples for Acoustic Spectrum Pad are available on YouTube. A specific link, https://youtu.be/yofPGJDk_YY, is provided for users to view.

### What is the Eraser function in Acoustic Spectrum Pad?

The Eraser function was added in version 1.5.1 of Acoustic Spectrum Pad. It allows users to selectively remove or edit parts of the spectrum analysis for more precise results.

## Version history (last 3 releases)

### 1.5.2 — 2021-08-14

//Version 1.5.2
Corrected the frequency scale value

### 1.5.1 — 2021-08-07

//Ver 1.5.1//  
Add spectrum eraser function. 
You can remove unwanted sound with spectrum eraser.

### 1.0 — 2020-12-08

No release notes.

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## More apps by Masahisa Endo

- [Video Sound Analyzer](https://appshunter.io/ios/app/video-sound-analyzer/id1416667706)
- [Words are running around world](https://appshunter.io/ios/app/words-are-running-around-world/id1508946436)
- [SReye](https://appshunter.io/ios/app/sreye/id1573702360)
- [Only Voice](https://appshunter.io/ios/app/only-voice/id1617855085)

All apps by Masahisa Endo: https://appshunter.io/developer/1225016932

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-22.*