Friture
INKCAZELO:
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 ye-audio kunye nokuphindaphinda kunye nexesha, ngendlela ephikisana nexesha. Isisombululo sexesha-frequency yesiboniso silungiswa bubude befestile yenguqu yeFourier (njengexesha eliphantsi lokuphendula lewijethi yespectrum). Ikwanqunyulwa sisisombululo somboniso wakho kwiipikseli.
- Iwijethi yeSpectrum: Iwijethi yespectrum ibonisa idatha yeaudio xa ithelekiswa nefrequency. Oku kulungele kakhulu ukujonga iimpawu ze-tha signal: i-frequency frequency, i-harmonics, i-feedback frequencies, njl. Ixesha lokuphendula lomboniso liyalungiseka. Elona xesha lincinane lokuphendula lidityaniswe kubude befestile yenguqu yeFourier. Kwi-FFT yamanqaku e-1024, kwaye inikwe ireyithi yesampula ye-48000 Hz esetyenziswe nguFriture, ixesha elincinci lokuphendula ngu-1024/48000 = 21.3 ms. Ukongeza, iwijethi izoba iincopho zecandelo ngalinye lamaza. Ezi ncopho ziphawula ubuninzi bamva nje be-spectrum, kwaye ziqala ukuhla ngokukhawuleza emva kokuba incopho ifikelelwe. Okokugqibela, ileyibhile ichonga ukuphindaphinda kobona buninzi behlabathi jikelele.
- Iwijethi ye-Octave Spectrum: Iwijethi ye-octave spectrum ibonisa idatha yeaudio ngokuchasene nexesha, ngokufanayo newijethi yeSpectrum. Idatha yomsindo idityaniswe ngokwemigqomo ephindaphindwayo enobubanzi beqhezu le-octave. Umgqomo ngamnye usisiphumo sesihluzo seqhezu le-octave.
- Iwijethi yoMda: Iwijethi yomda ibonisa idatha yesandi kunye nexesha. Isikali sexesha siyalungiseka. Umboniso ungqamaniswa ngokubhekisele kumphetho okhokelayo wophawu olubekwe embindini we-axis yexesha, njengoko umda wemveli ubuya kwenza.
- Iwijethi yenqanaba: Iwijethi yenqanaba ibonisa amandla aphezulu (i-25 ms ixesha lokuphendula, okt ngokukhawuleza) kunye namandla e-RMS (ixesha lokuphendula le-300 ms) kwi-dBFS (i-dB Isikali esipheleleyo). Xa imowudi yeetshaneli ezi-2 yenziwe yasebenza, ibonisa amanqanaba etshaneli nganye kwisikali esahlukileyo.
