Capture system playback from music apps, YouTube videos, games, and more, and graph it in real time. Check the quality of your audio files (is it really hi-res?) and see which sounds are playing in the music.
On Mac, install the virtual audio device BlackHole.
On Android, the app captures/analyzes audio from music and video apps through Android screen sharing (Android 10+). Some apps block audio capture.
On iPhone and iPad, audio from other apps cannot be captured. The app shows audio from the microphone or an audio interface.
主な特徴
Key features
3 種類の周波数軸Three frequency axes周波数軸 (X) を Linear / Log / Piano で切り替え。Piano 表示では 88 の鍵盤に合わせてピークの音名が確認できます。Switch the frequency axis (X) between Linear, Log, and Piano. In Piano mode, peaks are labeled with note names on an 88-key layout.
dB と Linear の音量表示dB and Linear amplitude音量軸 (Y) を dB / Linear で切り替え。小さな成分まで確認したいときは dB 表示、振幅の変化を確認したいときは Linear 表示が向いています。Switch the amplitude axis (Y) between dB and Linear. dB suits quiet components; Linear suits changes in amplitude.
ピーク検出とピークホールドPeak detection and hold最大 4 つのピークに周波数、音名、値をラベル表示。ピークホールドの保持時間や線の色も変更できます。Labels up to four peaks with frequency, note name, and level. You can change the hold time and line color.
モニターとフリーズMonitor and Freeze入力中の音をヘッドホンで聴きながら、フリーズで表示を止めて数秒前までさかのぼって確認できます。さかのぼれる時間は Free 版で 5 秒、Pro 版で 10 秒です。Listen to the input through headphones, freeze the display, and step back a few seconds. Free goes back 5 seconds, Pro 10 seconds.
スペクトル重心ProSpectral centroidPro音のエネルギーの重心を周波数で表示。2 つの音の明るさを比べるときの目安になります。Shows the energy balance point of the sound as a frequency. Useful for comparing how bright two sounds are.
録音ProRecordingPro解析中の音を WAV ファイルで保存。1 回の録音は最大 15 分です。Saves the audio you are analyzing as a WAV file, up to 15 minutes per recording.
解析はすべて端末内で行い、音声データを外部へ送信しません。
All analysis runs on your device. No audio data is sent to external servers.
Log 表示 (低い音域を広く表示)Log mode (wider space for low frequencies)Piano 表示とフリーズ (音程の確認に)Piano mode with Freeze (for checking pitch)
アプリの活用
Using the app
このアプリで調べてみたことを note でご紹介しています。
On note, I write about things I checked with this app (in Japanese).
MacCapturing audio from other apps requires BlackHole.
iPhone / iPadAudio from other apps cannot be captured.
AndroidCaptures/analyzes audio from music and video apps through Android screen sharing (Android 10+). Some apps block audio capture.The 60 fps frame rate in Pro is the maximum. The actual rate varies by device, input path, and FFT size, and on Android it is 45–50 fps in many cases.