mr spectra

mr spectra is an fft based audio spectrum analyzer with strobe lights and built-in weighting filters (A-weighting for human hearing, C-weighting for machine sounds and Z-weighting with no filter).

Enjoy mr spectra with your music as a musical mood light.

Quick tips:

* Show or hide the dB and Max dB values.

* Go to settings and add the Strobe Lights, or a decibel, wave, or spectrogram scope.

Display Settings:

* Select color schemes.

* Solid bars or line graphs.

Scope Settings:

* Strobe Lights.

* Decibel Scope.

* Sound Wave Scope.

* Spectrogram.

Strobe Lights Settings:

* 3 lights (Bass, Mid, Treble) or 4 lights (Bass, Mid, Treble, High Treble).

* Full screen mode.

Decibel Settings:

* Use A-Weighting, C-Weighting or Z-Weighting filters (dBA, dBC, dBZ).

* Show decibel and Max dB values.

* Set zero dB level.

FFT Options:

* Use Hann or rectangular windowing.

Technical Details:

* Input source: device mic.

* Sound captured: 16-bit PCM mono.

* Sampling rate: 44.1 kHz.

* Audio amplitude range: 1 to 32767.

* FFT latency: 23 milli seceonds.

* Decibel calculations: based on rms amplitude, relative to a base level of 1 rms. The base level can be adjusted by user to calibrate dB levels.