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Spectrogram

Spectrogram

8.3 80

v2.0.0 by Galmiza

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Spectrogram

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About Spectrogram

Spectrogram (Package Name: net.galmiza.android.spectrogram) is developed by Galmiza and the latest version of Spectrogram 2.0.0 was updated on November 3, 2026. Spectrogram is in the category of Music & Audio. You can check all apps from the developer of Spectrogram and find 89 alternative apps to Spectrogram on Android. Currently this app is for free. This app can be downloaded on Android 8.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.

Spectrogram shows the sound picked up by your microphone in real time: the waveform at the top and, below it, a scrolling spectrogram of every frequency up to 22 kHz.
• FFT resolution from 32 to 65536 points
• 9 window functions to reduce spectral leakage: Rectangular, Triangular, Welch, Hanning, Hamming, Blackman, Nuttall, Blackman-Nuttall, Blackman-Harris
• Linear or logarithmic frequency scale
• 4 color palettes: Fire, Ice, Grey, Rainbow
• Pause and resume at any time; drag vertically on the waveform to zoom
• Follows your phone's light or dark theme
The sound is analysed on your device only: nothing is recorded, stored or sent.
Levels are relative to the loudest sound the microphone can capture. They are not absolute sound pressure levels, which would require calibrating each phone's microphone.
Free and ad-free. Source code: https://github.com/galmiza/spectrogram-android

Spectrogram 2.0.0 Update

Version 2.0, rewritten for today's Android:
• New design that follows your light or dark theme
• Smoother spectrogram that scrolls at a constant speed
• Corrected Blackman, Nuttall, Blackman-Nuttall and Blackman-Harris windows
• The microphone stops as soon as the app leaves the screen
• Your settings are kept