Definição do conceito
[POR] HDCAM | HDCAM, lançado em 1997, é uma versão de videocassete de gravação digital de vídeo de alta definição do Betacam digital, usando uma gravação 3:1:1 transformada discreta de cosseno compacta de 8 bits (DCT), em resolução de 1440×1080 compatível com 1080i 1080, e adicionando os modos de quadro segmentado progressivo 24p e 23.976 (PsF) aos modelos posteriores. O codec HDCAM usa pixels retangulares e, como tal, o conteúdo gravado de 1440×1080 é ampliado para 1920×1080 na reprodução. A taxa de bits de vídeo gravada é de 144 Mbit/s. O áudio também é semelhante, com quatro canais de áudio digital AES3 de 20 bits e 48 kHz. | Como o Betacam, as fitas HDCAM são produzidas em tamanhos pequenos e grandes de cassetes; o pequeno cassete usa o mesmo fator de forma que o Betamax original. | O principal concorrente do HDCAM é o formato DVCPRO HD oferecido pela Panasonic. Ele usa um esquema de compactação semelhante e taxas de bits que variam de 40 Mbit/s a 100 Mbit/s, dependendo da taxa de quadros. | O HDCAM é padronizado como SMPTE 367M, também conhecido como SMPTE D-11. | FONTE: HDCAM in : Wikipedia. Disponível em : https://pt.wikipedia.org/wiki/HDCAM Acesso em : 18 nov. 2022
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[POR] HDCAM | HDCam (1997-2016) : Versão HD do formato Betacam Digital, que grava as imagens com compressão de 8-bit DCC 4:2:2. A sua resolução é de 1440x1080 com um upscale para 1920x1080 na reprodução das imagens.
| FONTE: HDCAM in : Wikipedia. Disponível em : https://pt.wikipedia.org/wiki/Betacam Acesso em : 18 nov. 2022
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[SPA] HDCAM | HDCAM, creado en 1997, es una versión de Alta definición (HD) de la familia Betacam, y mantiene la misma cinta de 1/2 pulgada. Utiliza una frecuencia de muestreo 4:2:2 y 8 bits de profundidad de color en vídeo por componentes. Este formato, al tratarse de HD, permite grabar en resoluciones superiores, a 720 y 1080 líneas. Además, como está destinado al cine, además de a los habituales 25 y 30 frames por segundo con exploración entrelazada (50i, 60i), PAL y NTSC respectivamente, graba a una velocidad de 24 fps (24p), la misma que se usa en cine con soporte fotoquímico. También puede realizar exploración progresiva, además de la exploración entrelazada tradicional de vídeo. Su bitrate de vídeo es 144 Mb/s. En cuanto a audio, graba 4 canales de audio AES/EBU a 48 kHz y 20 bits. | HDCAM usa cartuchos negros con pestaña naranja. | FUENTE : Betacam. in: Wikipedia. Disponible en : https://es.wikipedia.org/wiki/Betacam Acceso en : 19 nov. 2022
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[ENG] HDCAM is a high-definition video digital recording videocassette version of Digital Betacam introduced in 1997 that uses an 8-bit discrete cosine transform (DCT) compressed 3:1:1 recording, in 1080i-compatible down-sampled resolution of 1440×1080, and adding 24p and 23.976 progressive segmented frame (PsF) modes to later models. The HDCAM codec uses rectangular pixels and as such the recorded 1440×1080 content is upsampled to 1920×1080 on playback. The recorded video bit rate is 144 Mbit/s. Audio is also similar, with four channels of AES3 20-bit, 48 kHz digital audio. Like Betacam, HDCAM tapes were produced in small and large cassette sizes; the small cassette uses the same form factor as the original Betamax. The main competitor to HDCAM was the DVCPRO HD format offered by Panasonic, which uses a similar compression scheme and bit rates ranging from 40 Mbit/s to 100 Mbit/s depending on frame rate. | HDCAM is standardized as SMPTE 367M, also known as SMPTE D-11. Like most videotape formats, HDCAM is no longer in widespread use, having been superseded by memory cards, disk-based recording formats, and SSDs. Sony officially discontinued the format in 2016. | SOURCE : HDCAM. in: Wikipedia. Available at : https://en.wikipedia.org/wiki/HDCAM Accessed : 18 nov. 2022
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[ENG] HDCAM | HDCAM, introduced in 1997, was the first HD format available in Betacam form-factor, using an 8-bit DCT compressed 3:1:1 recording, in 1080i-compatible downsampled resolution of 1440×1080, and adding 24p and 23.976 PsF modes to later models. The HDCAM codec uses non-square pixels and as such the recorded 1440×1080 content is upsampled to 1920×1080 on playback. The recorded video bitrate is 144 Mbit/s. There are four channels of AES/EBU 20-bit/48 kHz digital audio. | It was used for some of Sony´s cinema-targeted CineAlta range of products (other CineAlta devices use flash storage). | SOURCE : Betacam. in: Wikipedia. Available at : https://en.wikipedia.org/wiki/Betacam Accessed : 18 nov. 2022
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[ENG] HDCAM | HDCAM : An HD video recording system from Sony developed from Digital Betacam using 8 bit DCT compression at a data rate of 144 Mb/s. Standardised by SMPTE as D-11. | SOURCE : FIAF Glossary of Technical Terms Available at : https://www.fiafnet.org/pages/E-Resources/Technical-Terms.html# Accessed : 18 nov. 2022
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[ENG] HDCAM | HDCAM (1997 -2016) | HDCAM (also known as D-11) was a professional high-definition digital video cassette format, introduced by Sony in 1997. No other tape-based HD broadcast format was around at the time, and it quickly became clear that one was needed for high-definition television to succeed. | Like other Betacam-related formats, HDCAM cassettes were available in large and small sizes with the same tape lengths as Digital Betacam (up to 40 minutes for S and 124 minutes for L tapes). Sony HDCAM tapes were black with an orange lid. HDCAM had a bit rate of 144 Mbps, which was a 50% increase over Digital Betacam. | Its main competitor was Panasonic’s DVCPRO HD that uses a similar compression scheme. | HDCAM SR (Superior Resolution) was introduced in 2003 and used higher particle density tape allowing an increased bit rate (a choice or 440 or 880 Mbps). | In 2016, Sony announced that it was ceasing production of its remaining ½-inch video tape recorders and players, including those for the HDCAM and HDCAM SR formats. | Dimensions (S-size): 15.6 cm × 9.6 cm × 2.5 cm | Dimensions (L-size): 25.4 cm × 14.5 cm × 2.5 cm | SOURCE : MUSEUM OF OBSOLETE MEDIA. Data Base. Available at : https://obsoletemedia.org/hdcam/ Accessed : 24 nov. 2022
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[ENG] HDCAM | HDCAM | Description : HDCAM was introduced in 1997 as the high-definition version of Digital Betacam. Like others in the Betacam family, HDCAM came in both small and large cassette profiles. Small HDCAM cassettes bear resemblance to the original Betamax casing. Panasonic´s DVCPro HD was the HDCAM´s competitor of this early era of high-def video. | HDCAM SR was introduced in 2003 with increased bit rate capacity and higher particle density tape composition. Since the late 2000s, HDCAM SR has been used for HDTV television production. HDCAM tapes are black with an orange tape guard; HDCAM SR tapes are black with cyan. | PSAP - Preservation Self-Assessment Program. Collection. University of Illinois at Urbana-Champaign. Available at : https://psap.library.illinois.edu/collection-id-guide/videotape#othervideo Accessed : 23 nov. 2022
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