
"Sound Lissajous Meter" has been updated to ver 2.1 now!
"Sound Lissajous Meter" is an app that displays the audio signal as a Lissajous curve in real time.
Lissajous is a plane figure obtained by combining two single vibrations that vibrate at right angles to each other.
With the microphone input signal on the vertical axis and the reference sine wave on the horizontal axis, it can be displayed as a two-dimensional curve with lissajous.

For example, you can play a sine wave of the same frequency as a reference sine wave signal from an audio system and observe its frequency and phase changes in the pattern of a Lissajous curve. If there is a lot of noise, a noise filter can be applied to make the display clearer.


In the case of unknown sound sources, the interrelationship of amplitude, frequency, and phase with the reference sine wave signal will help in the analysis of that source.


In this app, we do not collect any personal information.

Please click the link below to see "Sound Lissajous Meter" product page on AppStoreTM.
