Audio Spectrum Analyzer

A handy real-time audio spectrum and spectrogram analyzer
AppID:org.woheller69.audio_analyzer_for_android
Author:woheller69
License:Apache-2.0
Donation:
InRepoSince:2022-06-05
LastRepoUpdate:2024-10-05
LastAppUpdate:Unknown
LastVersion:2.7
Categories:Multimedia
APK source:
Google Play:Check if it's there
icon Audio Spectrum Analyzer was designed with accuracy and ease of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.


Features:

* No Ads.
* With log or linear frequency axis.
* Can label frequency axis using music pitch note.
* Support all possible sampling rates and almost all recorder sources of your device.
* Graph with nice grid lines and labels, easy to operate.
* FFT sample size range from 64 to 32768. Using half-overlapped (adjustable) time window to increase time resolution.
* Various window functions provided, for different frequency resolution and dynamical range.
* Peak frequency detection (in unit of Hz and note+cent), with a moderate accuracy (FFT + interpolation).
* With dB or A-weighting dB (dBA).
* Can record the audio in wav (PCM) format.
* Pinch to zoom, drag or swipe to move, long-press to place cursor, double touch to reset zoom.

Notes: May need some knowledge of discrete Fourier transform and spectrum analysis to use it well. The actual accuracy mainly depends on your device. No calibration interface provided.

WhatsNew:

New options for peak hold

01.png 02.png
While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device.

Packages

Version 2.7 (2024-10-05) no RB details available help icon

Android Versions:
  • Target: 14.0
  • MinVer: 4.0

Download (1.6 M)

Version 2.6 (2024-05-30) no RB details available help icon

Version 2.5 (2023-10-05) no RB details available help icon