Reverb Time Analyzer

Reverb Time Analyzer

with Octave-band Spectrogram

1 ratings
1 review
$5.99

Details

  • Released
  • Updated
  • May 13, 2024
  • February 9, 2026
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About

This acoustic analysis tool measures room reverberation time using an interrupted noise method. It provides detailed analysis of sound decay, including RT30/RT20, RT60, and octave-band spectrograms. Ideal for optimizing listening environments and identifying acoustic issues.

Reverberation time analysis (RT30/RT20, RT60)
Interrupted noise method with white noise source
Octave-band spectrogram analysis
Background noise level measurement
Sound pressure level measurement
Sound recording and playback
Measurement error detection
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What's New in Reverb Time Analyzer

4.0

February 9, 2026

- Improved internal processing and performance. - Added RT20 mode. - Updated UI design. - Requires iOS 26.2 or later.

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User reviews

端末による暗騒音レベルの違いはなぜ?

6畳ぐらいの部屋で、暗騒音を計測すると自分のiPhone12Proだと約44dBで、iPadPro第2世代だと約29dBでした。リオン普通騒音計NL-28のA特性の値は約29〜30dBでした。端末のマイクの周波数重みづけの設定などに違いがあるためでしょうか?

Response from developer

当社製品をご利用いただきありがとうございます。 本アプリのサウンドレベル測定はフラットな周波数特性で計測する必要があるため、Z特性(周波数重み付けなし)でおこなっております。一般に暗騒音であれば、A特性の騒音計測値に比べてより大きなレベルで計測されます。iPhone製品シリーズや個別端末によってマイク感度にばらつきはありますが、A特性での計測値より10数dB程度高く出るのは正しい結果といえます。 なお、本アプリはiPhone向けアプリであり、ハードウェアが大きく異なるiPadでのご利用は推奨しておりませんので、ご了承願います。 当社ホームページに本アプリのサポート情報を掲載していますのでご参照ください。 どうぞよろしくお願いいたします。

Developer apps

FAQ

What is Reverb Time Analyzer used for?

Reverb Time Analyzer is an acoustic analysis tool designed to measure the reverberation time of a room. It helps users understand and control sound reverberation for a better listening experience.

How does Reverb Time Analyzer measure reverberation time?

It uses the interrupted noise method, generating a random test noise signal from the iPhone's speaker and then turning it off. The app analyzes the subsequent sound decay to determine reverberation times.

What types of acoustic data does Reverb Time Analyzer provide?

The app provides RT30/RT20 and RT60 reverberation times, a reverberation decay curve, and octave-band spectrogram analysis (1/3 or 1/48 octave band).

Can Reverb Time Analyzer detect background noise?

Yes, it includes pre-measurement checks to measure background noise levels and ensures they are below approximately 50dB for accurate reverberation time analysis.

What is the price of Reverb Time Analyzer?

Reverb Time Analyzer is a paid application priced at $5.99.

Is Reverb Time Analyzer available on Android devices?

Based on the provided data, Reverb Time Analyzer is currently only supported on iPhones.

How often is Reverb Time Analyzer updated?

The latest version, 4.0, was last updated on February 9, 2026, indicating a recent update. The app was initially released on May 13, 2024.

Does Reverb Time Analyzer have ads?

No, Reverb Time Analyzer does not contain advertisements. It is a paid application without any ads.