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Nou premye asime ke yon moun gen zewo fondasyon nan odyo ak videyo, e li pa janm te aprann nenpòt konesans pwosesis siyal dijital ki gen rapò. Fondasyon matematik la se fondamantalman nivo lekòl segondè, men li abitye avèk devlopman C / C ++, omwen abitye ak konpilasyon ak debogaj IDE anba yon platfòm sèten.
Konsantre sou de pwojè yo louvri sous ffmpeg ak webRTC, sitou gade nan pati nan videyo nan ffmpeg ak pati nan odyo nan webRTC.
Premye a tout, kòmanse ak dekodaj videyo. Sa a se youn ki pi senp lan. Kòd debaz la pou rele ffmpeg dekodaj videyo se sèlman sou 100 liy yo. Dekodaj videyo sèlman bezwen konprann h.264, 80% + sèn yo nan fòma sa a kodaj, konprann debaz H.264 sps p NAL ak lòt konsèp fòma dosye, konprann prensip la nan fòma imaj YUV, ak konprann konvèsyon nan YUV RGB , Se konsa, ou ka fè rann imaj, ou ka reyalize yon jwè videyo ki senp. (Fondamantalman nan premye etap la)
Lè sa a, yo aprann sou kodaj videyo, li rekòmande yo kòmanse ak x264, yon apèl ki senp nan kòd kodaj x264 se mwens pase 100 liy. Kodaj pi konplike pase dekodaj nan ki dekodaj pa mande pou nenpòt ki paramèt yo dwe configuré, ak kodaj gen yon gwo kantite paramèt ki bezwen configuré. Nan kòmansman an, jis konprann yon kèk konsèp debaz yo, tankou pousantaj ankadreman, metòd kontwòl koule komen ABR CRF, GOP, I / B Ki sa / P Frame vle di respektivman. (Abitye avèk kodaj X264 ankò)
Codec a nan pati nan odyo se menm jan ak sa yo ki nan videyo a. Nan etap inisyal la, ou sèlman bezwen konprann de kodè EAAC + ak swa, konprann konsèp chanèl son, to echantiyon, elatriye, epi konprann fòma dosye Wave. Kapab yon senp jwè odyo. (Fè yon jwè odyo)
Pati nan konplèks nan odyo se pa kodèk la, men efè a son. Pran yon gade nan modil la Processing Audio nan webRTC ak konprann konsèp sa yo: denoising NS, eko anile AEC, bèbè deteksyon VAD, otomatik genyen AGC kontwòl, ak bati-an webRTC la. Malgre ke algorithm la se pa pi bon an, li ka rezoud 90% + nan pwoblèm yo, epi li vo aprann. (Aprann pwosesis odyo webrtc)
Aprè aprann sa a, mwen bezwen reflechi sou yon kesyon, si wi ou non mwen vle pran yon wout jeni oswa yon wout algorithmik. Si li se yon wout algorithmik, Lè sa a, mwen dwe aprann matematik. Dèyè pwosesis siyal dijital la se yon gwo kantite teyori debaz matematik yo. Si li se yon wout jeni, Lè sa a, ou gen yo aprann kwa-platfòm devlopman, aprann koleksyon an, lèktur ak pwosesis nan odyo ak videyo anba tribin miltip, ak aprann optimize lang asanble anba tribin miltip. (Platfòm ki gen rapò)
Odyo ak videyo se yon jaden trè fon, epi ou pa janm pral fini aprann nan yon lavi, men jaden sa a gen avantaj ke vitès la nan mizajou konesans se relativman dousman, bagay sa yo aprann yo pa fasil yo dwe elimine, ak akimilasyon nan eksperyans trè enpòtan.v
lòt pwodwi nou an:
Pwofesyonèl pakè ekipman estasyon radyo FM
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Antre nan imèl yo ka resevwa yon sipriz
es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Afriken
sq.fmuser.org -> Albanyen
ar.fmuser.org -> Arab
hy.fmuser.org -> Armenian
az.fmuser.org -> Azerbaydjan
eu.fmuser.org -> Basque
be.fmuser.org -> Belarisyen
bg.fmuser.org -> Bulgarian
ca.fmuser.org -> Katalan
zh-CN.fmuser.org -> Chinwa (senplifye)
zh-TW.fmuser.org -> Chinwa (Tradisyonèl)
hr.fmuser.org -> Kwoasyen
cs.fmuser.org -> Czech
da.fmuser.org -> Danwa
nl.fmuser.org -> Olandè
et.fmuser.org -> Estonyen
tl.fmuser.org -> Filipino
fi.fmuser.org -> Finnish
fr.fmuser.org -> Franse
gl.fmuser.org -> Galisyen
ka.fmuser.org -> Georgian
de.fmuser.org -> Alman
el.fmuser.org -> Greek
ht.fmuser.org -> Kreyòl ayisyen
iw.fmuser.org -> ebre
hi.fmuser.org -> Hindi
hu.fmuser.org -> Hungarian
is.fmuser.org -> Icelandic
id.fmuser.org -> Endonezyen
ga.fmuser.org -> Ilandè
it.fmuser.org -> Italyen
ja.fmuser.org -> Japonè
ko.fmuser.org -> Koreyen
lv.fmuser.org -> Latvian
lt.fmuser.org -> Lithuanian
mk.fmuser.org -> Masedwan
ms.fmuser.org -> Malay
mt.fmuser.org -> Maltese
no.fmuser.org -> Norwegian
fa.fmuser.org -> Pèsik
pl.fmuser.org -> Polonè
pt.fmuser.org -> Pòtigè
ro.fmuser.org -> Romanian
ru.fmuser.org -> Ris
sr.fmuser.org -> Sèb
sk.fmuser.org -> Slovak
sl.fmuser.org -> Slovenian
es.fmuser.org -> Panyòl
sw.fmuser.org -> Swahili
sv.fmuser.org -> Syèd
th.fmuser.org -> Thai
tr.fmuser.org -> Tik
uk.fmuser.org -> Ikrenyen
ur.fmuser.org -> Oudou
vi.fmuser.org -> Vietnamese
cy.fmuser.org -> Welsh
yi.fmuser.org -> Yiddish
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