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App Store Apps > Utilities > SpectrumAnalyzer
SpectrumAnalyzer icon

SpectrumAnalyzer

by Eiji Chiba · Utilities · Free
On the App Store since July 2026 · Data updated 2026-10-06
App Store

SpectrumAnalyzer is made and published by Eiji Chiba. AppBrain is an independent app data site and isn't affiliated with Eiji Chiba. The app name, icon, screenshots and description belong to Eiji Chiba and are shown as published on the App Store.

AppBrain's verdict

Last updated
July 16, 2026

Rankings

App Store top charts

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Releases

Updates seen on the App Store
Version
1.1
Launched
July 2026

No changelog data

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Technology

Found in the app by AppBrain
Price
Free
App size
6.61 MB
Content rating
Everyone

Technologies used by SpectrumAnalyzer

About the app and developer

About SpectrumAnalyzer

SpectrumAnalyzer is an utilities app developed by Eiji Chiba.

User Ratings

The app has no ratings yet.

App Information

SpectrumAnalyzer is freely available from the App Store. The app size is 6.61 MB. The latest version available is 1.1. The last update was on July 16, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2026.

Developer information for Eiji Chiba

Eiji Chiba

Address:

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Store listing

By Eiji Chiba, from the App Store
SpectrumAnalyzer Screenshot 1 of 3
SpectrumAnalyzer Screenshot 2 of 3
SpectrumAnalyzer Screenshot 3 of 3
Screenshots by Eiji Chiba, from the the App Store listing
Description by Eiji Chiba Written by the developer, not by AppBrain. Click to read.
【アプリの紹介】
「SpectrumAnalyzer」は、デバイスのマイクから取得した音声をリアルタイムで高度に解析・可視化するオーディオDSPビジュアライザです。
高速フーリエ変換(FFT)を用いた精密な周波数解析と、直感的で洗練されたダークテーマのユーザーインターフェースにより、音響エンジニアから音楽家、音に興味のある一般のユーザーまで、どなたでも手軽に「音の形」を観察することができます。

【主な機能】
リアルタイム表示
- 時間領域(波形): 音の強弱を波の形でリアルタイムに描写します。
- 周波数領域(スペクトラム): 音にどの周波数がどれだけ含まれているかを解析します。
- 同時表示: 波形とスペクトラムを上下に並べ、音の挙動を立体的に捉えます。

プロレベルのDSP設定パラメータ
- FFTサイズ選択: 512, 1024, 2048, 4096サンプルから解像度を選択可能。
- 豊富な窓関数(Window): None(矩形窓), Hann(ハニング窓), Hamming(ハミング窓), Blackman(ブラックマン窓)をサポート。
- 周波数重み付け特性(Weighting): フラットな「Z特性」、人間の聴覚特性に合わせた「A特性」、騒音評価に用いられる「C特性」をワンタップで切り替え。

リファレンス・重ね合わせ(オーバーレイ)機能
- マイクからの音声を一時録音し、全体の「平均スペクトル」を瞬時に算出。
- 保存した平均スペクトルを、リアルタイムの解析波形の上に重ね合わせて表示することで、異なる音源の周波数特性を簡単に比較できます。
- 音声の録音と再生
- 録音した音声はその場で再生して確認が可能です。

【こんな用途におすすめ】
オーディオ機器やスピーカーのチューニング:部屋の音響特性や周波数バランスの測定に。
楽器の練習やチューニング:倍音構成の視覚的な確認やピッチチェックに。
ボイストレーニング・発声練習:自分の声の周波数成分の分析に。
環境音や騒音の調査:周囲の雑音がどの周波数帯域で発生しているかの特定に。
Official page on the App Store
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