shiilan
sawir qaade
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:
- 2D Spectrogram widget: 2D spectrogram widget waxa uu soo bandhigayaa xogta maqalka ah ee ka soo horjeeda inta jeer iyo wakhtiga labadaba, qaab ka soo horjeeda wakhtiga. Xallinta wakhtiga-soo noqnoqda ee bandhigga waxa lagu hagaajiyaa dhererka daaqada ee beddelka Fourier (sida wakhtiga jawaabta ugu yar ee widget-ka spectrum). Waxa kale oo ay xaddidaysaa xallinta bandhiggaaga ee pixels.
- Qalabka Spectrum: Widget-ka spectrum wuxuu soo bandhigayaa xogta maqalka iyo inta jeer. Tani aad bay ugu habboon tahay in la sawiro sifooyinka tha signal: soo noqnoqoshada aasaasiga ah, iswaafajinta, soo noqnoqoshada jawaab celinta, iwm. Wakhtiga jawaabta bandhiggu waa mid la habeyn karo. Waqtiga jawaabta ugu yar wuxuu ku xidhan yahay dhererka daaqada ee beddelka Fourier. FFT oo ah 1024 dhibcood, oo la siiyo qiyaasta muunad ee 48000 Hz ee uu isticmaalo Friture, wakhtiga jawaabta ugu yar waa 1024/48000 = 21.3 ms. Intaa waxaa dheer, widget-ku wuxuu u soo jiidaa ugu sarreeya qayb kasta oo joogto ah. Meelaha ugu sarreeya waxay calaamad u yihiin heerka ugu sarreeya ee spectrum, waxayna bilaabaan inay hoos u dhacaan wax yar ka dib markii ugu sarreeyay. Ugu dambeyntii, calaamad ayaa tilmaamaysa inta jeer ee ugu badnaan caalami ah ee spectrum.
- Octave Spectrum widget: Widget-ka octave spectrum widget-ka wuxuu soo bandhigayaa xogta maqalka iyo waqtiga, si la mid ah widget-ka Spectrum. Xogta maqalka waxaa lagu soo koobay haamaha soo noqnoqda oo leh ballac jajab-of-octave ah. Qalab kasta oo soo noqnoqda waa natiijada shaandhada jajab-of-octave.
- Baaxadda widget-ka: Widget-ka baaxadda leh wuxuu soo bandhigayaa xogta maqalka iyo waqtiga. Miisaanka wakhtiga waa la habeyn karaa Bandhigu waxa uu la mid yahay cidhifka hormoodka ah ee calaamada taagan ee dhexda dhidibka wakhtiga, sida baaxada dhaqameedku samayn doonto.
- Heerka widget-ka: Widget-ka heerku wuxuu soo bandhigayaa awooda ugu sarreysa (25 ms wakhtiga jawaabta, ie. degdeg ah) iyo awooda RMS (waqtiga jawaabta 300 ms) ee dBFS (dB Miisaanka buuxa). Marka habka 2-kanaalka la furo, waxay soo bandhigaysaa heerarka kanaal kasta miisaan gooni ah.
