Download Spectroid v1.1.1 APK free for android

Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the entire frequency spectrum.
Spectroid uses multiple FFT overlapping frequency to provide better frequency resolution at lower frequencies than one FFT. A caveat of this method is the change in the impulse response and minor discontinuities in the frequency graph. The positive thing is that it can effectively generate a frequency graph that better matches the frequency resolution of human sound perception. Despite this, it is limited by the Fourier uncertainty principle, while the perception of human perception is not.