Spectroid

Spectroid

By Carl Reinke

Spectroid

Spectroid is a real-time audio spectrum analyzer with affordable frequency decision across the the entire frequency spectrum.

FAQ

Q: Why are the dB values negative?

A: Spectroid makes use of dBFS (Full Scale) the place 0 dB is the maximum power that the microphone can measure, so the decibel values are adverse as a outcome of the measured power is lower than the maximum energy.

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 makes use of multiple FFTs overlapped in frequency in order to provide higher 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 might possibly efficiently produce a spectrum that higher matches the frequency resolution of human audio perception. It's nonetheless most likely not nearly as good as your ears though!

Q: Can I export the spectrum data?

A: Spectroid does not make your device a calibrated instrument. If you want the spectrum data then you ought to be utilizing an precise spectrum analyzer somewhat than an app in your mobile system.

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