Kala-goynta Spectral iyo Shaandhaynta Wiener
Kala-goynta Spectral iyo shaandhaynta Wiener waa faras-hoosaadka hore ee barashada-qoto dheer ee caadiga ah ee dhimista qaylada.
Dulmar
They clean audio by estimating the noise spectrum and mathematically subtracting or attenuating it, and they still underpin many modern systems.
quusid qoto dheer
Labada habba waxay ku shaqeeyaan qaybta soo noqnoqda ka dib isbeddelka Fourier ee waqti-gaaban. Kala-goynta Spectral waxay qiyaastaa celceliska awoodda qaylada, badanaa inta lagu jiro farqiga aamusnaanta, waxayna ka jartaa cabbir kasta oo cabbirkiisa; wixii soo hara waxaa loola dhaqmaa sidii hadal. Waa sahlan tahay oo raqiis ah laakiin waxay u janjeertaa inay abuurto 'sawaxan muusik,' codad random ah oo degdeg ah oo ay sababtay kala-goyn aan fiicnayn oo ka tagaysa meelaha ugu sarreeya ee muuqaalka ah. Shaandhaynta Wiener waa mid mabda' badan leh: waxay ka soo saartaa faa'iidada ugu fiicn ee tirakoobka ee bin kasta oo soo noqnoqonaya si loo yareeyo khaladka celceliska-laba-jibaaran yahay, weelasha miisaanka lagu qiyaaso saamigooda signal-ilaa-sanqa. Biinnada ay hadalka u badan yihiin ayaa soo mara; Haamaha ay ku badan yihiin qaylada ayaa si weyn loo dhimay. Labaduba waxay moodayaan in sawaxanku uu yara taagan yahay, kaas oo ka xaddidaya dhawaaqyada kediska ah, beddelaadda.
Aragtida Farsamada
Faa'iidada Wiener ee ku jirta qashinka waa qiyaastii SNR / (SNR + 1), markaa weelka SNR-sare ayaa ilaaliya inta badan tamartooda halka qashin-qubka SNR-yar la xakameynayo. Kala-goynta Spectral beddelkeeda waxay xisaabisaa cabbirka laga jaray qiyaasta qaylada, ka dibna dabaqyada taban ilaa eber. Labaduba waxay dib u isticmaalaan wajigii asalka ahaa ee buuqa markii dib loo dhisayo qaab-dhismeedka mawjada, maadaama maqalka bini'aadmigu yahay mid aan dareen u lahayn khaladaadka wejiga ee xirmooyinka gaaban.
Saamaynta Istiraatijiyadeed
Helitaanka iyo gaarsiinta
Waxay wanaajisaa marin u helida iyada oo loo marayo qoraal-qorid, sheeko, iyo is-dhexgalyo cod.
Qiimaha iyo miisaaniyada
Kooxaha warbaahintu waxay ku soo rari karaan codka sifaysan si degdeg ah iyagoo wata miisaaniyado yaryar.
Xawaaraha iyo miisaanka
Nidaamyada u jeedda macmiisha waxay ka baaraandegi karaan isdhexgalka hadalka si weyn.
Mustaqbalka Kala-goynta Spectral iyo Shaandhaynta Wiener
Hababkani ma luminayaan; waa la dhuuqayaa. Shabakadaha qotodheer waxay hadda bartaan waji-xidhaha ay shaandhaynta Wiener ka soo saartay falanqayn ahaan, iyo fikradda faa'iidada ku salaysan ee SNR waxay si toos ah u dhiirigelisay maaskaro-waqtiga-soo noqnoqda ee loo isticmaalo kobcinta hadalka neerfaha. Filo isticmaalka sii wadida sida miisaanka hore ee hore ee qalabka xaddidan, sida hore ee xasiliya moodooyinka la bartay, iyo sida saldhigyada aasaasiga ah ee la tarjumi karo cilmi-baarayaashu waxay cabbirayaan nidaamyada cusub ee lidka ku ah.
Dhaqangelinta Adduunka-dhabta ah
Hoos u dhigida sawaxanka ee tifaftirayaasha maqalka sida Audacity
Nadiifinta codka ee taleefoonadii hore iyo nidaamyada VoIP
Eedaynta dhamaadka-dhamaadka ka hor aqoonsiga hadalka ee chips-ka guntan hoose ee awoodda
Kor u qaadida waxgarasho ee hababka hore ee gargaarka maqalka iyo hadalka
Khatarta & Dariiqyada Ilaalada
Si xun u isticmaalka codka iyo khataraha is-yeelyeelku way kordhaan marka oggolaanshaha la waayo.
Saxnimadu waxay hoos ugu dhici kartaa lahjadaha, lahjadaha, ama jawiga buuqa badan.
Maqalka synthetic waxaa lagu khaldi karaa hadal dhab ah iyada oo aan si cad loo calaamadin.
Qorshe Hawleedka Dhaqangelinta
Hel ogolaansho cad oo ku saabsan qabashada codka, xidhitaanka, iyo dib u isticmaalka
Tijaabi tayada ku hadasha kala duwan iyo xaaladaha asalka.
Qeex marka bani'aadamku ay tahay inuu dib u eego ama oggolaado wax soo saarka.
Ku calaamadee codka synthetic oo xafid diiwaannada la-xisaabtanka.
Sii wad Sahaminta
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Hagaha xiga
Faafinta Spectrogram Riffusion
Su'aalaha soo noqnoqda
What is Spectral Subtraction and Wiener Filtering?
Kala-goynta Spectral iyo shaandhaynta Wiener waa faras-hoosaadka hore ee barashada-qoto dheer ee caadiga ah ee dhimista qaylada. Waxay nadiifiyaan maqalka iyagoo qiyaasaya spectrum sanqadha oo xisaab ahaan ka jaraan ama yareeyaan, waxayna wali sii xoojiyaan habab badan oo casri ah.
Waa maxay artifact dhibsado caadi ahaan la xidhiidha kala-goynta spectral?
Kala-goynta aan fiicnayn waxay ka tagtaa meelaha ugu sarreeya ee go'doonsan ee u dhawaqaya dhawaaqyo dagaal oo random ah, oo loo yaqaan qaylada muusiga.
Qaybgee bay ka shaqeeyaan kala-goynta spectral iyo shaandhaynta Wiener?
Labaduba waxay u beddelaan codka qaybta soo noqnoqda iyadoo loo marayo isbeddelka Fourier ee wakhtiga gaaban ka hor inta aan la farsamayn.
Muxuu shaandhada Wiener isku dayaa inuu yareeyo?
Shaandhaynta Wiener waxay xisaabisaa faa'iidada yaraynaysa qaladka celceliska labajibbaaran, iyadoo siinaya qiyaasta ugu fiican ee tirakoobka.
Sidee bay u kala goynta spectral caadi ahaan u qiyaastaa spectrum buuqa?
Waxay cabbirtaa celceliska awoodda qaylada inta lagu jiro hakadyada ama daldaloolada aan hadalka ahayn, ka dibna waxay ka jartaa qiyaasta jir kasta.
Faa'iidada Wiener ee ku jirta qashinka waxaa lagu qiyaasi karaa waa kee?
Faa'iidada ayaa qiyaastii ah SNR/(SNR+1), sidaa darteed weelka SNR-sare ayaa inta badan la hayaa oo weelka SNR-yar ayaa la yareeyey.