Ho hadika
TLHALOSO:
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:
- Widget ea 2D Spectrogram: Widget ea 2D spectrogram e bonts'a data ea molumo khahlano le khafetsa le nako, ka mokhoa o sa fetoheng. Qeto ea nako-frequency ea ponts'o e hlophisitsoe ke bolelele ba fensetere ea Fourier transform (ha e le bonyane nako ea karabo ea widget ea spectrum). E boetse e fokotsoa ke qeto ea pontšo ea hau ka lipikselse.
- Widget ea Spectrum: Widget ea spectrum e bonts'a data ea molumo khahlano le khafetsa. Sena se nepahetse haholo ho bona ka mahlo litšoaneleho tsa lets'oao la tha: maqhubu a motheo, li-harmonics, maqhubu a maikutlo, joalo-joalo Nako ea karabo ea ponts'o e ka lokisoa. Nako e fokolang ea ho arabela e hokahane le bolelele ba lifensetere tsa phetoho ea Fourier. Bakeng sa FFT ea lintlha tse 1024, 'me ho fanoe ka tekanyo ea sampole ea 48000 Hz e sebelisoang ke Friture, nako e fokolang ea karabo ke 1024/48000 = 21.3 ms. Ho feta moo, widget e hula litlhōrō bakeng sa karolo ka 'ngoe ea maqhubu. Litlhōrō tsena li tšoaea boholo ba morao-rao ba spectrum, 'me li qala ho fokotseha nakoana ka mor'a hore tlhōrō e fihleloe. Qetellong, leibole e supa makhetlo a mangata a lefats'e a spectrum.
- Widget ea Octave Spectrum: Widget ea octave spectrum e bonts'a data ea molumo ha e bapisoa le nako, ka mokhoa o ts'oanang le widget ea Spectrum. Lintlha tsa molumo li hlophisoa ka meqomo ea maqhubu a bophara ba karoloana ea octave. Moqomo o mong le o mong oa maqhubu ke sephetho sa filthara ea karoloana ea octave.
- Widget ea Scope: Widget ea scope e bonts'a data ea molumo ho latela nako. Sekala sa nako se ka hlophisoa. Pontšo e hokahantsoe mabapi le ntlha e etellang pele ea lets'oao le behiloeng bohareng ba axis ea nako, joalo ka ha boholo ba moetlo bo ka etsa.
- Widget ea boemo: Widget ea boemo e bonts'a matla a phahameng (nako ea karabelo ea 25 ms, ke hore hang hang) le matla a RMS (nako ea karabelo ea 300 ms) ho dBFS (dB Full Scale). Ha mokhoa oa li-channel tse 2 o buletsoe, o bonts'a maemo a kanale ka 'ngoe ka sekala se arohaneng.
