Burnt-in timecode (original) (raw)
الرمز الزمني المحروق (وغالبًا ما يختصر BITC قياسا على VITC) هو رمز قابل للقراءة على الشاشة إذ يعتبر نسخة من معلومات الشريط الزمني لجزء من المواد المتراكبة على صورة فيديو، ويستخدم الرمز الزمني المحترق أحيانًا مقترناً مع الرمز الزمني «الأساسي» الذي يمكن قراءته آليًا، ولكن غالبًا ما يستخدم في نسخ من المواد الأصلية بصيغة أشرطة الفيديو المنزلية نحو VHS ، بحيث يمكن تتبع نسخ VHS إلى شريطها الرئيسي ويسهل تحديد موقع رموز الوقت الأساسية.
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| dbo:abstract | الرمز الزمني المحروق (وغالبًا ما يختصر BITC قياسا على VITC) هو رمز قابل للقراءة على الشاشة إذ يعتبر نسخة من معلومات الشريط الزمني لجزء من المواد المتراكبة على صورة فيديو، ويستخدم الرمز الزمني المحترق أحيانًا مقترناً مع الرمز الزمني «الأساسي» الذي يمكن قراءته آليًا، ولكن غالبًا ما يستخدم في نسخ من المواد الأصلية بصيغة أشرطة الفيديو المنزلية نحو VHS ، بحيث يمكن تتبع نسخ VHS إلى شريطها الرئيسي ويسهل تحديد موقع رموز الوقت الأساسية. (ar) Burnt-in timecode (often abbreviated to BITC by analogy to VITC) is a human-readable on-screen version of the timecode information for a piece of material superimposed on a video image. BITC is sometimes used in conjunction with "real" machine-readable timecode, but more often used in copies of original material on to a non-broadcast format such as VHS, so that the VHS copies can be traced back to their master tape and the original time codes easily located. Many professional VTRs can "burn" (overlay) the tape timecode onto one of their outputs. This output (which usually also displays the setup menu or on-screen display) is known as the super out or monitor out. The character switch or menu item turns this behaviour on or off. The character function is also used to display the timecode on the preview monitors in linear editing suites. Videotapes that are recorded with timecode numbers overlaid on the video are referred to as window dubs, named after the "window" that displays the burnt-in timecode on-screen. When editing was done using magnetic tapes that were subject to damage from excessive wear, it was common to use a window dub as a working copy for the majority of the editing process. Editing decisions would be made using a window dub, and no specialized equipment was needed to write down an edit decision list which would then be replicated from the high-quality masters. Timecode can also be superimposed on video using a dedicated overlay device, often called a "window dub inserter". This inputs a video signal and its separate timecode audio signal, reads the timecode, superimposes the timecode display over the video, and outputs the combined display (usually via composite), all in real time. Stand-alone timecode generator / readers often have the window dub function built-in. Some consumer cameras, in particular DV cameras, can "burn" (overlay) the tape timecode onto the composite output. This output typically is semi-transparent and may include other tape information. It is usually activated by turning on the 'display' info in one of the camera's sub-menus. While not as 'professional' as an overlay as created by a professional VCRs, it is a cheap alternative that is just as accurate. Timecode is stored in the metadata areas of captured DV AVI files, and some software is able to "burn" (overlay) this into the video frames. For example, DVMP Pro is able to "burn" timecode or other items of DV metadata (such as date and time, iris, shutter speed, gain, white balance mode, etc.) into DV AVI files. OCR techniques can be used to read BITC in situations where other forms of timecode are not available. (en) Il Timecode display è una tecnica che consente di visualizzare una versione direttamente leggibile del Timecode SMPTE, inserita nell'immagine televisiva. Di solito questa tecnica viene utilizzata su una delle uscite monitorie di videoregistratori e apparati simili, oppure viene registrata su copie del materiale originale, come riferimento o come base per il montaggio offline, di solito su un DVD o un nastro VHS. La maggior parte dei videoregistratori per uso professionale può inserire il timecode su un segnale video composito oppure SDI da usare come monitoria, insieme di solito allo stato della macchina e, di volta in volta, messaggi di errore o menu di configurazione. I nastri registrati con il timecode visualizzato sono noti in gergo come copie timecodate o copie TC display. Esempio di Timecode display visto sull'uscita monitoria di un videoregistratore betacam SP. In questo caso la macchina è in registrazione. Il timecode può essere inserito sul video anche da un dispositivo appositamente dedicato, detto "inseritore di timecode", che riceve in ingresso il video e il timecode e li combina in uscita. Il timecode in ingresso può essere ricavato sia dal Timecode verticale presente sul video che da un timecode longitudinale separato. Generatori/lettori di timecode indipendenti hanno di solito la stessa funzione come opzione. Alcuni tipi di telecamera amatoriale, come le telecamere DV, possono leggere il timecode dal nastro e inserirlo sulla loro uscita video, insieme ad altre informazioni di funzionamento. Questo avviene sul video composito in uscita dalla telecamera ma non sul flusso digitale firewire. Sul video acquisito tramite questa interfaccia, invece, il timecode è presente nei metadati, e alcuni software, come DVMP Pro1, sono in grado di inserirlo in maniera visibile sul video in formato AVI DV. In alcuni casi, i moderni sistemi di montaggio possono impiegare delle tecniche OCR per leggere il timecode display se non ne è disponibile alcun altro tipo ma, solitamente, in questo case si acquisisce il materiale con un timecode generato al momento dell'acquisizione. (it) |
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| rdfs:comment | الرمز الزمني المحروق (وغالبًا ما يختصر BITC قياسا على VITC) هو رمز قابل للقراءة على الشاشة إذ يعتبر نسخة من معلومات الشريط الزمني لجزء من المواد المتراكبة على صورة فيديو، ويستخدم الرمز الزمني المحترق أحيانًا مقترناً مع الرمز الزمني «الأساسي» الذي يمكن قراءته آليًا، ولكن غالبًا ما يستخدم في نسخ من المواد الأصلية بصيغة أشرطة الفيديو المنزلية نحو VHS ، بحيث يمكن تتبع نسخ VHS إلى شريطها الرئيسي ويسهل تحديد موقع رموز الوقت الأساسية. (ar) Burnt-in timecode (often abbreviated to BITC by analogy to VITC) is a human-readable on-screen version of the timecode information for a piece of material superimposed on a video image. BITC is sometimes used in conjunction with "real" machine-readable timecode, but more often used in copies of original material on to a non-broadcast format such as VHS, so that the VHS copies can be traced back to their master tape and the original time codes easily located. OCR techniques can be used to read BITC in situations where other forms of timecode are not available. (en) Il Timecode display è una tecnica che consente di visualizzare una versione direttamente leggibile del Timecode SMPTE, inserita nell'immagine televisiva. Di solito questa tecnica viene utilizzata su una delle uscite monitorie di videoregistratori e apparati simili, oppure viene registrata su copie del materiale originale, come riferimento o come base per il montaggio offline, di solito su un DVD o un nastro VHS. I nastri registrati con il timecode visualizzato sono noti in gergo come copie timecodate o copie TC display. (it) |
| rdfs:label | رمز زمني محروق (ar) Burnt-in timecode (en) Timecode display (it) |
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