Guhindura-Q Guhindura amajwi
Ihinduka rya Constant-Q (CQT) nisesengura ryinshuro rikoresha ibinini bitandukanijwe na logarithmique bihujwe mukibuga cyumuziki, aho kugirango bingana neza bingana na Fourier isanzwe.
Incamake
It matters because it mirrors how we perceive pitch, making it ideal for music analysis where notes double in frequency each octave.
Kwibira cyane
Mubisanzwe Bigufi-Igihe cya Fourier Guhindura, bin binshuro zashyizwe kumurongo, bityo inoti ntoya zegeranye hamwe mugihe inoti ndende zibona ibyemezo birenze. Umuziki ntukora gutya: buri octave ikubye inshuro ebyiri, na semitone ni igipimo gihamye, ntabwo ari umubare uhamye wa hertz. CQT ikosora ibi mukugumana igipimo cyinshuro hagati yumurongo mugari, ikintu cyiza Q, gihoraho murwego rwose. Imirongo yo hasi ibona isesengura rirerire rya Windows (gukemura neza inshuro) kandi imirongo myinshi ibona Windows ngufi (igihe cyiza cyo gukemura). Igisubizo ni spekrogramu aho umurongo umwe uhuye nikibuga kimwe cyumuziki, kandi inanga imwe isa nkaho ititaye kuri octave yaba ikinishijwe. Uyu mutungo utuma CQT impera yimbere kugirango imenyekane, iyandikwa, hamwe no gukurikirana ikibuga.
Ubushishozi
Ihoraho Q isobanura buri muyunguruzi wumunzani ufite umunzani wo hagati, bityo bino zose zingana numubare umwe wumuziki. Mubisanzwe bin bishyirwa 12 cyangwa 24 kuri octave kugirango bihuze na semitone cyangwa kimwe cya kane. Kuberako uburebure bwidirishya butandukana kuri bin, gushyira mubikorwa neza ukoreshe FFT imwe wongeyeho materix ntoya aho kubara buriyungurura ukwayo, nuburyo amasomero nka librosa atuma CQT yihuta.
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.
Ejo hazaza hahoraho-Q Guhindura amajwi
CQT irakoreshwa cyane nkinjiza yerekana uburyo bwimbitse bwo kwiga imiziki, kuva imiterere yayo ihuza imiterere ireka imiyoboro ihuza imyigire yiga transposition-idahinduka. Tegereza guhuza cyane hamwe nijwi ryamajwi mubikorwa nko kwandukura byikora, gutwikira-indirimbo, no gutandukanya inkomoko. Imbere ya Hybrid ihuza CQT hamwe na filterbank yize iragaragara, kandi CQT itandukanye noneho reka reka moderi ihindure impinduka hamwe numuyoboro mugihe cy'amahugurwa.
Gushyira mu bikorwa Isi
Sisitemu yo kumenyekanisha chord ishushanya ikarita ya CQT kugeza murwego rwumuziki
Ibikoresho byo kwandikisha umuziki bihindura amajwi ya piyano mumuziki cyangwa MIDI
Igipfukisho-indirimbo hamwe numuziki-bisa byerekana inyungu za octave-invariant ibiranga
Guhindura ikibanza hamwe nurufunguzo-gutahura amacomeka mubikorwa bya majwi
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
Gutangira Kumenya mumajwi
Ibibazo bikunze kubazwa
What is Constant-Q Transform for Audio?
Ihinduka rya Constant-Q (CQT) nisesengura ryinshuro rikoresha ibinini bitandukanijwe na logarithmique bihujwe mukibuga cyumuziki, aho kugirango bingana neza bingana na Fourier isanzwe. Nibyingenzi kuko birerekana uburyo tubona ikibuga, bigatuma biba byiza gusesengura umuziki aho inoti zikubye kabiri muri buri octave.
Nigute bini yinshyi itandukanijwe muburyo buhoraho-Q?
CQT ikoresha bino ya logarithmique itandukanijwe kuburyo buri bin ihuye nintera yumuziki intera, bitandukanye numurongo ugaragara wa FFT isanzwe.
'Q' muri Constant-Q bivuga iki?
Q ni igipimo cyayunguruzo rwagati rwumurongo rwagutse, kandi CQT ituma iri gereranya rihoraho murwego rwose.
Kuki CQT ikoresha Windows ndende yo gusesengura kuri frequency nke?
Injyana ya muzika yo hasi irihafi cyane muri hertz absolute, so windows ndende itanga rezo nziza yumurongo ukenewe kugirango ubatandukanye.
Ni izihe nyungu zo gushishoza CQT ifite kumuziki hejuru yumurongo ugaragara?
Kuberako bin bitandukanijwe nigipimo cyijwi, guhinduranya chord hejuru ya octave ihindura gusa igishushanyo, igaha octave / transposition invariance ifasha imirimo yumuziki.
Nibangahe CQT bins kuri octave ikoreshwa muguhuza na semitone?
Ibinini cumi na bibiri kuri octave bihuza buri bin na semitone yubunini bwa chromatic yuburengerazuba; Amabati 24 atanga igihembwe cya tone.