About Spectroid
Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum. 💬 FAQ 💬 Q: Why are the dB values negative? A: Spectroid uses dBFS (Full Scale) wh
Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.
💬 FAQ 💬
Q: Why are the dB values negative?
A: Spectroid uses dBFS (Full Scale) where 0 dB is the maximum power that the microphone can measure, so the decibel values are negative because the measured power is less than the maximum power.
Q: Can I zoom in on the spectrum plot?
A: Yes, do a two-finger pinch-to-zoom gesture.
Q: Why are there discontinuities/gaps in the spectrum plot and waterfall?
A: Spectroid uses multiple FFTs overlapped in frequency in order to provide better frequency resolution at lower frequencies than a single FFT. The caveat of this method is varied impulse response and minor discontinuities in frequency. The upside is that it can efficiently produce a spectrum that better matches the frequency resolution of human audio perception. It's still probably not as good as your ears though!
Q: Can I export the spectrum data?
A: Spectroid doesn't make your device a calibrated instrument. If you need the spectrum data then you should be using an actual spectrum analyzer rather than an app on your mobile device.
Previous Versions
Here you can find the changelog of Spectroid since it was posted on our website on 2016-12-22 14:09:39.
The latest version is 1.1.2 and it was updated on 2026-10-12 23:19:04. See below the changes in each version.
Spectroid version 1.1.2
Updated At: 2022-09-07
Changes: â—† Improve usability on high-density displays
Spectroid version 1.1.1
Updated At: 2018-08-06
Changes: Fix missing spectrum plot on Android P.
Spectroid version 0.9.2
Updated At: 2015-12-23
Changes: Lowered spectrum plot floor.,Like this app? Rate it!
Disclaimer
Official Google Play Link
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