すぐ起動して、見やすく、使いやすい
自分の声の倍音を図(というんでしょうか?)で見てみたくて、アプリをダウンロードしました。使うたびに、こんなに一つの音にいろんな波長の音が入っているんだと感動します。
この手のアプリはほとんど使ったことなく、音声スペクトルの可視化アプリを3つくらい試しに使ってみたのですが、私は、こちらが一番シンプルで使いやすかったです。
安定して動作することも、とても嬉しいです。

Visualize audio input in real-time with a music scale display. Adjust the view with drag and pinch gestures, and utilize the built-in tuner and recording features. Analyze pitch and save your audio.
1.2.0
May 11, 2019
- Added import/export features
Audio Spectrum Monitor displays the real-time spectrum of your device's microphone input, using a music scale for the horizontal axis. It also includes features like pitch detection, a tuner, and recording capabilities.
When pitch is detected, a blue vertical line appears on the music scale, and the Hz value and scale name are displayed. The app notes that it may not correctly analyze audio with multiple instruments or harmonies.
Audio Spectrum Monitor allows you to record audio, but recordings are limited to a maximum of 3 minutes in length.
Audio Spectrum Monitor is available for iPhone, iPad, and iPod devices.
The latest version, 1.2.0, was released on May 11, 2019. The app was originally released on March 10, 2014.
Audio Spectrum Monitor has an age rating of 4+, making it suitable for a wide range of users.
No, Audio Spectrum Monitor does not contain advertisements. It is a paid application.
Audio Spectrum Monitor is available for a one-time purchase of $0.99.