Version: 1.1.1 (29)
Package: org.intoorbit.spectrum
53 downloads
0.11 MB (115,975 bytes)
Min: Android 4.0 (Ice Cream Sandwich, API 14)
Target: Android 8.1 (Oreo, API 27)
nodpi
Uploaded August 4, 2018 at 4:43AM UTC by Ricardo
Download APK

Whoa there!

It looks like you're using an ad blocker, so you'll have to wait 15 more seconds.
Please whitelist this site to skip the wait and help us pay for bandwidth, hosting, and other bills.

APK Notes:

Fix missing spectrum plot on Android P.

- Add flat top window function.
- Add French translation.

Like this app? Rate it!
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!
All versions
August 4, 2018
March 16, 2018
Comments