Ukuthosa
INCAZELO:
Friture is a real-time audio analyzer. The purpose of Friture is to help analyze an audio signal to understand the characteristics of this signal (fundamental, harmonics, feedback, etc.), to describe the source/room/receiver behaviour (reverberation, gain peaks, etc.), or to make adjustments in the preprocessing (room equalization). This is achieved by providing a set of widgets to visualize audio data:
- Iwijethi ye-2D Spectrogram: Iwijethi ye-spectrogram ye-2D ibonisa idatha yomsindo iqhathaniswa kokubili imvamisa nesikhathi, ngendlela ephikisana nesikhathi. Ukulungiswa kwemvamisa yesikhathi kwesibonisi kulungiswa ubude bewindi loguquko lwe-Fourier (ngokuqondene nesikhathi esincane sokuphendula sewijethi ye-spectrum). Kuphinde kukhawulwe ngokulungiswa kwesibonisi sakho ngamaphikseli.
- Iwijethi ye-Spectrum: Iwijethi ye-spectrum ibonisa idatha yomsindo iqhathaniswa nemvamisa. Lokhu kufaneleka kakhulu ukuze ubone ngeso lengqondo izici zesignali ye-tha: imvamisa eyisisekelo, ama-harmonics, amaza ombiko, njll. Isikhathi sokuphendula sesibonisi siyalungiseka. Isikhathi esincane sokuphendula sixhunywe kubude bewindi loguquko lwe-Fourier. Ku-FFT yamaphoyinti angu-1024, futhi kunikezwe izinga lesampula elingu-48000 Hz elisetshenziswe i-Friture, isikhathi esincane sokuphendula ngu-1024/48000 = 21.3 ms. Ukwengeza, iwijethi idonsa iziqongo zengxenye ngayinye yamafrikhwensi. Lezi ziqongo ziphawula ubukhulu bakamuva be-spectrum, futhi ziqala ukwehla ngemuva nje kokufinyelelwa esiqongweni. Okokugcina, ilebula ikhomba imvamisa yobukhulu bomhlaba wonke be-spectrum.
- Iwijethi ye-Octave Spectrum: Iwijethi ye-octave spectrum ibonisa idatha yomsindo iqhathaniswa nesikhathi, ngokufanayo newijethi ye-Spectrum. Idatha yomsindo iqoqwe emigqonyeni yefrikhwensi enobubanzi be-fraction-of-octave. I-frequency bin ngayinye ingumphumela wesihlungi se-fraction-of-octave.
- Iwijethi yobubanzi: Iwijethi yobubanzi ibonisa idatha yomsindo iqhathaniswa nesikhathi. Isikali sesikhathi siyalungiseka. Isibonisi sivunyelaniswa ngokuphathelene nonqenqema oluholayo lwesignali ebekwe phakathi nendawo ye-eksisi yesikhathi, njengoba i-scope evamile ingenza.
- Iwijethi yeleveli: Iwijethi yeleveli ibonisa amandla aphezulu (isikhathi sokuphendula esingu-25 ms, okungukuthi ngokushesha) namandla e-RMS (isikhathi sokuphendula esingu-300 ms) ku-dBFS (dB Isikali Esigcwele). Uma imodi yeziteshi ezi-2 ivuliwe, ibonisa amaleveli wesiteshi ngasinye ngesilinganiso esihlukile.
