Mataki na 1: Loda naka WebM fayiloli ta amfani da maɓallin da ke sama ko ta hanyar ja da sauke su.
Mataki na 2: Danna maɓallin 'Maida' don fara hira.
Mataki na 3: Sauke fayil ɗin da aka canza Opus fayiloli
WebM zuwa Opus Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan fitar da waƙa kawai daga WebM zuwa Opus?
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Ka shigar da fayil WebM kuma mai maida zai demuxe saurin sauti daga cikin kwandon WebM, sa'an nan ya canza shi zuwa Opus. An manta da firam ɗin bidiyo — babu wata biyu ta wucewa da bidiyo, babu asarar ingancin da ke wuce abin da codec ɗin Opus ya gabatar da kansa. WebM ne mai tsanani subset na Matroska da Google ya buga a cikin 2010 musamman don ba HTML5 bidiyo a royalty-free jakar. Opus shi ne IETF standard daga 2012 da ya hada Skype's SILK magana codec da Xiph's CELT music codec a cikin daya zane.
Shin Opus zai yi wasa a cikin motar ta ko a kan kayan aiki na daɗaɗɗe?
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A mafi yawan lokuta ba haka ba. WebM ana decode da duk wani abu, ciki har da ƴankunan kafa na mota da masu wasa da suka fi daɗewa; Opus yana buƙatar kayan aikin da ke sani da codec, wanda kayan aikin da ke da kansu ba su da shi. Idan maɓallin shine na mota ko mai wasa da aka iya ɗaukar shi, wannan yana da matukar hujjar zama a kan WebM. Opus ba a goyi bayansa ba ta hanyar kayan aiki na daban - ka yi tsammanin kawai ana wasa da kayan aikin, kuma ka yi tsammanin na'urorin mota za su yi watsi da shi.
Wanne waƙa ta sauti ake fitarwa idan WebM na na da yawa?
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Da ƙa'idoji, maɗaukakiyar maɗaukakiyar 0 (ɗaukakiyar waƙoƙin sauti na farko, a mafi yawan lokuta maɗaukakiyar maɗaukakiyar). Idan WebM ɗinka na da sharhi, dubs, ko maɗaukakiyar sauti mai bayani a kan waƙoƙin sauti na ƙarshe, mai zaɓar "ɗaukakiyar waƙoƙin sauti" na ci gaba yana ba ka damar zaɓar 1, 2, 3... da bayyananne. An nuna jerin waƙoƙin a cikin nunawa kafin upload don haka ba za ka iya zaɓar da ba a gani ba.
Mene ne bitrate ɗin da fayil Opus ke amfani da shi?
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Dimba Opus na bitrate shine 192 kbps (mai haske ga kiɗa ga mafi yawan kunnuwa). Ka sake zuwa 320 kbps ga fitarwa mai sauti, ko 96-128 kbps ga magana / podcast inda fayil ɗin da ke da ƙarancin girma shine mafi muhimmanci. Opus masu dauke da asara (WAV, FLAC) suna manta da daidaitattun bitrate kuma suna riƙe da kowane misali. Opus na ƙayyade daga 6 kbps mono magana zuwa 510 kbps stereo kiɗa a cikin maɓallin bit na ɗaya kuma yana canja moɗa ta atomatik.
Shin tafiya daga WebM zuwa Opus za ta rage ingancin sautina?
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Idan Opus format ɗin ba ta da asara (WAV, FLAC, ALAC), za'a kiyaye kowace misali ta asali. Idan Opus format ɗin yana da asara (MP3, AAC, OGG, Opus), codec ɗin zai sake ƙuƙunta — a 192 kbps bambancin ba zai ji ba ga mafi yawan abun ciki; a 96 kbps za ka iya jin cimbals ko sibilants suna da sauƙi. Kontainer ɗin WebM ba shi da wata tasiri a kan wannan — kawai daidaitattun codec ɗin ne suke da muhimmanci.
Shin an fitar da Opus yana riƙe da ƙimar misali WebM?
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By default yes — 48 kHz WebM audio becomes 48 kHz Opus audio, 44.1 kHz becomes 44.1 kHz. If you need to downsample for compatibility (e.g. 96 kHz studio masters to 44.1 kHz CD-quality Opus) the sample-rate dropdown does this with high-quality resampling.
Shin zan iya fitar da sauti Opus daga wata takardar shaidar da ke da fayiloli WebM?
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Na'am — ka saka wata ƙuƙwalwar WebM fayiloli cikin yankin shigarwa kuma mu yi fitarwa a cikin daidaito. Premium na samun ma'aikata masu daidaito da yawa; akan ƙuƙwalwar 100-fayil (ta hanyar tattara fina-finai da bidiyo) wannan shine bambancin tsakanin sakan 90 da minti 8.
Menene lokacin da ake buƙata don fitar da Opus daga cikin WebM na awa 1?
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Audio demux + transcode yana tafiya da sauri fiye da sake- encoding na bidiyo - a kan 5-15% na lokacin asali. 1-hour WebM -> Opus ya ƙare cikin minti 3-9 a kan hanyar ruwa ta ƙa'ida. Idan Opus codec ya haɗu da codec na asali a cikin WebM (wanda ake amfani da shi ga AAC cikin MKV / MP4), shi ne wani remux na gaskiya kuma yana tafiya cikin sakan.
Shin fayil Opus zai ɗauki suna / mai waƙa / alamar alƙawari?
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Idan fayil WebM ya adana metadata na ruwa (mawaki, suna, alƙawari), za mu kwafe waɗannan fannoni cikin ƙofar Opus inda siffar ke goyon bayan alamomin. ID3v2 (MP3), Vorbis comments (OGG, FLAC), MP4 atoms (AAC / M4A), RIFF INFO (WAV) an rubuta su duka. WebM da ba'a yi masa alama zai samar da Opus da ba'a yi masa alama ba — yi amfani da Mp3tag ko Picard bayan- fitarwa don ya zama mai albarka.
Shin WebM na na sirri ne yayin fitar da sauti?
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Na'am — irin wannan siffar sirri kamar duk canji. An yi aiki da tushen WebM da fitarwa Opus a cikin ma'aikata masu tsallakewa kuma an share su cikin minti. Ba za mu taba wasa, adana, ko raba abun ciki ba. Ka duba /privacy/.
Me yasa Opus na ke da kurakurai ko kuma sauti mara kyau?
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A ko'ina akwai rashin daidaituwa tsakanin maɓallin maɓallin maɗaukaki na maɗaukakiya — WebM ɗinka ya kasance da tsari na sauti mai maɓallan da yawa kuma mun fitar da maɓallin maɓallin da ba daidai ba (misal, maɓallin maɓallin sauti mai bayani mai ɓoye a matsayin maɓallin maɓallin maɗaukakiya). Yi sake-rarraba tare da zaɓin "maɓallin maɓallin sauti" na ci gaba da daidaita zuwa maɓallin maɓallin dama, ko kuma zaɓi "duk maɓallin maɓalli" don fitar da kowace maɓalli a matsayin fayil na Opus daban.
Shin an iya fitar da Opus cikin stereo, mono, ko kuma 5.1?
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Tsarin layin ya bi WebM bisa diff: 5.1 WebM layin sauti yana samar da 5.1 Opus inda codec ɗin ke goyon baya (AAC, FLAC, OGG, Opus). Zaɓin layin-saukar-da-haɗawa yana tilasta stereo ko mono — mai amfani ga gudun aiki na podcast ko daidaituwa da masu magana na Bluetooth mono kawai.
Opus buɗaɗɗe ne, codec mai jiwuwa mara sarauta wanda ke ba da matsi mai inganci don duka magana da sauti na gaba ɗaya. Ya dace da aikace-aikace daban-daban, gami da murya akan IP (VoIP) da yawo.
