About Audio Spectrum Monitor
It is an application program that in real time displays the spectrum of the voice input from your Android phone's microphone. A horizontal axis is a music scale. A display position can be adjusted by dragging...
It is an application program that in real time displays the spectrum of the voice input from your Android phone's microphone. A horizontal axis is a music scale.
A display position can be adjusted by dragging horizontally.
Scaling of the display range of a scale can be carried out in pinch zoom operation.
[ feature ]
･The spectrum of the voice input from your Android phone's microphone is in real time displayed.
･A horizontal axis is displayed by the music scale.
･Display 7 octaves from C1 to B7.
･It corresponds to a horizontal rotation of the screen.
･The basic frequency (pitch) is presumed and it displays it.
･It correspond to a drug and pinch zoom.
･Tuner
･Recording and playback
・Save/Load function
[ How to use ]
Please input the voice from your Android phone's microphone. The spectrum is in real time displayed. It corresponds to a horizontal rotation.
[ Pitch detection ]
When the pitch is presumed, a blue vertical line is displayed at the position of the music scale.
Moreover, value (Hz) of the pitch and the music scale name are displayed in the top of the screen.
When the voice contains two or more musical instruments and harmonies, it is not possible to analyze it correctly.
[ Recording and playback ]
Only 3 minutes you can record.
Previous Versions
Here you can find the changelog of Audio Spectrum Monitor since it was posted on our website on 2013-08-21 21:31:39.
The latest version is 1.5.5 and it was updated on 2026-06-11 15:00:42. See below the changes in each version.
Audio Spectrum Monitor version 1.5.5
Updated At: 2025-11-29
Changes: - Updated the SDK
Audio Spectrum Monitor version 1.5.5
Updated At: 2025-09-03
Changes: - Fixed broken layout on settings and loading screen
Audio Spectrum Monitor version 1.5.3
Updated At: 2023-06-24
Changes: - SDK version upgrade
Audio Spectrum Monitor version 1.5.1
Updated At: 2019-07-22
Changes: - Recording time extended to 5 minutes
- Fixed a bug on import
- Make the sharp and flat symbol more visible
Audio Spectrum Monitor version 1.1.9
Updated At: 2016-01-10
Changes: - Expanded the displaying range to C1.,- Fixed the bug that lines of a scale is incorrect when dragging.
Audio Spectrum Monitor version 1.0.6
Updated At: 2012-06-10
Changes: Several fixes and updates
Disclaimer
Official Google Play Link
We do not host Audio Spectrum Monitor on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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