Gukuramo Spectral na Wiener Muyunguruzi
Gukuramo Spectral hamwe na Wiener kuyungurura nibisanzwe, mbere-yimbitse-yakazi yo kugabanya urusaku.
Incamake
They clean audio by estimating the noise spectrum and mathematically subtracting or attenuating it, and they still underpin many modern systems.
Kwibira cyane
Ubwo buryo bwombi bukora muri domaine yumurongo nyuma yigihe gito cyo guhindura Fourier. Gukuramo Spectral kugereranya imbaraga zurusaku rwimpuzandengo, mubisanzwe mugihe cyo guceceka, hanyuma ikayikura kuri buri kintu cyerekana ubunini; ibisigaye byose bifatwa nkimvugo. Nibyoroshye kandi bihendutse ariko bikunda gukora 'urusaku rwumuziki,' amajwi yigihe gito yatewe no gukuramo bidatunganye hasigara impinga zidasanzwe. Akayunguruzo ka Wiener ni amahame menshi: akura muburyo bwiza bwo kubona imibare kuri buri bin bin kugirango bigabanye amakosa aringaniye, ibipimo biremereye ugereranije nibimenyetso byerekana urusaku. Amabati yiganjemo imvugo anyuramo; bin biganjemo urusaku byegeranye cyane. Bombi bakeka ko urusaku ruhagaze neza, rukababuza kurwanya amajwi atunguranye, ahinduka.
Ubushishozi
Inyungu ya Wiener mu binini ni SNR / (SNR + 1), bityo bin-SNR yo hejuru ikomeza ingufu nyinshi mugihe ibinini bya SNR byahagaritswe. Gukuramo Spectral ahubwo ibara ubunini ukuyemo ubunini bwurusaku, hanyuma hasi hasi kuri zeru. Bombi bongera gukoresha icyiciro cyambere cyurusaku mugihe bongeye kubaka imiterere yumuraba, kubera ko kumva kwabantu kutumva neza amakosa yibice mubice bigufi.
Ingaruka z'Ingamba
Kugera no kugera
Itezimbere kugerwaho binyuze mu kwandukura, kuvuga, no guhuza amajwi.
Igiciro na bije
Amatsinda yibitangazamakuru arashobora kohereza amajwi yihuse hamwe na bije nto.
Umuvuduko n'igipimo
Sisitemu ireba abakiriya irashobora gutunganya imikoranire ivugwa murwego runini.
Igihe kizaza cyo gukuramo ibintu no gushungura
Ubu buryo ntibucika; barimo gutwarwa. Imiyoboro yimbitse ubu yiga masike yo kuyungurura Wiener yakomotse kubisesenguye, kandi igitekerezo cya SNR cyunguka igitekerezo cyashishikarije guhisha igihe-inshuro ikoreshwa mugutezimbere imvugo. Witege ko uzakomeza gukoreshwa nkibintu byoroheje byimbere-byimbere ku byuma bibujijwe, nkibisanzwe bihindura imiterere yize, kandi nkibisobanuro byasobanuwe abashakashatsi bapima sisitemu nshya kurwanya.
Gushyira mu bikorwa Isi
Kugabanya urusaku rwerekana mubanditsi bajwi nka Audacity (kuvanaho urusaku)
Isuku ryijwi muri terefone ishaje na sisitemu ya VoIP
Imbere-iherezo ryerekana mbere yo kumenyekanisha imvugo kumashanyarazi make yashizwemo
Gutezimbere byumvikana muburyo bwo kumva-imfashanyo na sisitemu yo gutegeka
Ingaruka & Kurinda
Gukoresha nabi amajwi no kwigira ibyago byiyongera mugihe uruhushya rubuze.
Ukuri kurashobora kugabanuka hejuru yimvugo, imvugo, cyangwa urusaku rwibidukikije.
Amajwi yubukorikori arashobora kwibeshya kumvugo yukuri nta kirango gisobanutse.
Igishushanyo mbonera
Shaka uruhushya rusobanutse rwo gufata amajwi, gukoroniza, no gukoresha.
Ikizamini cyiza mubiganiro bitandukanye hamwe nuburyo bwimbere.
Sobanura igihe umuntu agomba gusuzuma cyangwa kwemeza ibisubizo.
Andika amajwi yubukorikori kandi ugumane inyandiko zerekana kubazwa.
Komeza Ubushakashatsi
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Ubuyobozi bukurikira
Riffusion Spectrogram Diffusion
Ibibazo bikunze kubazwa
What is Spectral Subtraction and Wiener Filtering?
Gukuramo Spectral hamwe na Wiener kuyungurura nibisanzwe, mbere-yimbitse-yakazi yo kugabanya urusaku. Basukura amajwi bagereranya urusaku rwimibare bakanakuramo imibare cyangwa bakayihuza, kandi baracyashigikira sisitemu nyinshi zigezweho.
Nibihe bihangano bibabaza bikunze guhuzwa no gukuramo ibintu?
Gukuramo bidatunganye bisiga impinga zidasanzwe zisa nkimvururu zidasanzwe, bita urusaku rwumuziki.
Ni ubuhe buryo bwo gukuramo ibintu no gukuramo Wiener bikora cyane cyane?
Byombi bihindura amajwi muri domaine yumurongo ukoresheje igihe gito Fourier ihinduka mbere yo gutunganya.
Niki filteri ya Wiener igerageza kugabanya?
Akayunguruzo ka Wiener kagereranya inyungu igabanya ikosa-rigereranijwe, ritanga igereranyo cyiza.
Nigute gukuramo ibigereranyo bisanzwe bigereranya urusaku?
Ipima imbaraga zurusaku mugihe cyo kuruhuka cyangwa kutavuga, hanyuma ikuramo igereranya kuri buri kintu.
Inyungu ya Wiener muri bin irashobora kugereranywa niyihe mvugo?
Inyungu ni hafi ya SNR / (SNR + 1), bityo bin-SNR yo hejuru irabikwa cyane kandi bin-SNR yo hasi irahuza.