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.