さすが日本製
これです！
欲しかったの！
使いやすいしわかりやすい！
ケチのつけようが無い。あえて言えばクリアボタンがあってもいいかな〜ってとこくらいデス。
欲しかったの！
使いやすいしわかりやすい！
ケチのつけようが無い。あえて言えばクリアボタンがあってもいいかな〜ってとこくらいデス。
With Ads
🔧 Utilities
Archived App (Last seen on 4 Nov 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
Details
About
Measure sound levels in decibels and visualize sound frequencies with a real-time spectrogram. Understand your environment's noise and protect your health. Offers advanced settings for accurate acoustic analysis.
✓Sound level measurement (dB)
✓Real-time spectrogram analysis
✓Frequency weighting correction (A, C, Z)
✓Time weighting characteristics (Fast, Slow)
✓Time course graph
✓Environmental noise measurement
Show original description
What's New in Sound Level & Spectrogram
3.0
October 10, 2025
- Minor improvements. - Requires iOS 18.7 or later.
User reviews
Developer apps
FAQ
What is Sound Level & Spectrogram used for?
Sound Level & Spectrogram is used to measure sound levels in decibels (dB) and visualize the frequency characteristics of sound sources using a spectrogram. It helps users understand noise levels in their environment for health and quality of life improvements.
Does Sound Level & Spectrogram have ads?
Yes, Sound Level & Spectrogram contains advertisements. As it is a free application, ads are displayed to support its development and maintenance.
What devices is Sound Level & Spectrogram available on?
Sound Level & Spectrogram is currently available for iPhone. It is designed to work on Apple's mobile operating system.
How accurate are the measurements from Sound Level & Spectrogram?
While the app is adjusted for iPhone, the built-in microphone's gain can be non-uniform, meaning exact measurements are not guaranteed. The standard noise measurement range is 30-130 dBA.
What are the frequency and time weighting options in Sound Level & Spectrogram?
Sound Level & Spectrogram offers frequency weighting correction (A, C, Z) for different measurement types and time weighting characteristics (Fast=0.125sec, Slow=1.0sec) to capture sound dynamics appropriately.
How often is Sound Level & Spectrogram updated?
The app was last updated on October 10, 2025, with version 3.0. This indicates a recent update, suggesting ongoing development and support from the developer.
What is the age rating for Sound Level & Spectrogram?
Sound Level & Spectrogram has an age rating of 4+. This means it is considered suitable for children aged 4 and above, with no mature content.
Can Sound Level & Spectrogram be used for professional acoustic analysis?
Yes, with features like frequency and time weighting, and a spectrogram for 1/3 octave band analysis, it can be used for applications such as environmental noise measurement, architectural acoustics, and live sound checks.
