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Page 2: ...ifferent sources are likely to have different resolutions bit rates and frame rates Moreover when these are transmitted it may be physically impossible to access files with different formats It is getting so that you can t easily manage simple tasks like dubbing or monitoring What is needed for this world of many formats is a multi format converter that can convert from many formats to any other f...
Page 3: ...or picture quality after down conversion Interview Shinji Kobukata 12 Making full use of HDV Interview with a VC 300HD developer 14 System proposal Flexible format conversion is the key 16 Input Output specifications 18 Main specifications and connectors 19 Writer Nobuyoshi Kodera Cover photos Shinya Aizawa The Japanese original book was issued asa supplement of Gekkan Video α on June 1st 2007 ...
Page 4: ...cessary investment in equipment Conversion can tie up the entire NLE for long periods of time and results in a shortage of temporary drive space and increases costs Moreover converting using an NLE system is a non editing task that can unnecessarily tie up an expert editor Thus all the temporary storage space which you need for a margin of safety during conversion can add significantly to operatin...
Page 5: ...nversion is possible with the VC 300HD Moreover output to a PC monitor can be converted to HDV and HD SDI output This makes it possible to capture PowerPoint slides and other software applications as immediately usable video content Going the other way video pro VCR content can be converted to data that can be viewed on PC monitors via projectors and on consumer TV screens Moreover while China is ...
Page 6: ...g the knob on the right you cycle to i LINK and select by pushing the knob All the basic selection operations are done by turning the knob and pushing into select the displayed item Let s now take a look at the OUTPUT function Once you selected the output format the converter will automatically convert and output the video format desired If the unit s automatic settings are acceptable there is no ...
Page 7: ...nput and REF Input If not set manually the optimal source will be automatically be selected When converting between PAL and NTSC if input and output are out of sync internal synchronization is selected If no external synchronization signal input is detected synchronization is almost always set to Video Input When conversion is output to a recorder the input signal of the recording device works as ...
Page 8: ...put was output via i LINK After the i LINK output was captured in a non linear system the video samples were output as HD SDI from a board installed in the non linear system In the conversion from HD SDI to HDV internal base band input is encoded in real time to MPEG2 This provides real time encoder performance test results When the 1080 59 94i output is selected the cross conversion resolution is...
Page 9: ...rted to HD SD SDI output In the conversion from HDV once the MPEG2 decoding has been done the scaler carries out processing to magnify or shrink the image In the 1080i output you can see that the HDV characteristics are output more or less unaltered Image after up conversion Multiburst waveform Input HDV 1080 59 94i Process Format conversion Output 1080 59 94i Input HDV 720 59 94p Process Format c...
Page 10: ... Squeeze NTSC 480i PAL 576i 16 9 1080i 720p 4 3 NTSC 480i PAL 576i 1024 x 768 800 x 600 640 x 480 4 3 Letterbox NTSC 480i PAL 576i 4 3 Squeeze NTSC 480i PAL 576i 16 9 1080i 720p 210 Out Zoom Adjusts the magnification of the output video 50 100 200 Larger numerical values make the image larger The maximum value that can be selected changes according to the combination of the input video format and ...
Page 11: ...rated internally The timecode is generated from when the power is turned on or when 271 TC Offset is set Free Run The time code starts preset from the moment settings are made with 271 TC Offset Thru Use the timecode input from an external source The timecode that is used will be that which is embedded in the signal of the video connector being used This setting is ignored when the frame rates of ...
Page 12: ...of the VC 300HD I was surprised when I checked the line between the bright and dark areas Usually along the boundary you see blurring But with the VC 300HD there wasn t any The overall level of detail is incredible It s so beautiful Photos 2 and 3 I also used to do a lot of chroma key editing with down conversion Frequently shooting is done in HD and editing and final output are in SD But after do...
Page 13: ...ns Component SDI DV it seems to cover everything that the industry currently uses I don t need more than that I was just about to buy an HDV deck But the one with HD SDI costs a serious amount of money But now I might get a much cheaper one and use this VC 300HD for HD SDI Coming at it the other way you also gain a path from HD SDI to HDV As far as editing is concerned you might be able to edit in...
Page 14: ...at unchanged just to have it always easily on hand for editing When DV first came out everyone was putting converters on the market With HDV we ve hardly seen the same kind of thing What s more virtually nothing has become available for two way conversion of HDV baseband This situation has opened the market for the VC 300HD In designing the hardware it must have been hard to choose a processor and...
Page 15: ...it can easily perform conversions I think the applications will open up It is tough to achieve conversion between 60 and 50 fields But since conversion from SD to 720p and vice versa is one type of frame rate conversion we needed to provide that function Validating the conversions was really tough We started by making stuff we could use for verification We had to choose recording equipment that co...
Page 16: ...n be done more efficiently Figure 2 Dubbing In post production work much dubbing work is needed for the materials and complete package In particular it is expected that there will be a rapid increase in the need to bring video up from HDV and conversely to drop it down to HDV Meanwhile it is still true that the work of dubbing to obsolete VHS will not completely disappear For the most frequently o...
Page 17: ...r VHS VCR HD VCR HDV VCR VC 300HD Video Sources HD Camera SD Camera Computer PR Series Video Presenter Source Preview HD Analog Component or RGB HD SDI HDV Projector Audio Sources V 440HD HD VCR HDV VCR Audio Mixer Figure 2 A multi format converter is indispensable during post production when many and varied video formats have to be dealt with Used together with a matrix switcher the VC 300HD can ...
Page 18: ...Layer II 16 bit 48 kHz 384 kbps DV Linear PCM 16 bit 48 kHz Nonlinear PCM 12 bit 32 kHz 2ch Linear PCM 24 bit 48 kHz 0dBu 0 775Vrms VC 300HD Only Digital 1600x1200 60 Hz 1400x1050 60 75 Hz 1360x768 60 Hz 1280x1024 60 75 Hz 1280x768 60 Hz 1280x960 60 Hz 1152x864 75 Hz 1024x768 60 75 Hz 800x600 60 75 Hz 640x480 60 75 Hz 1080 59 94p 1080 50p 1080 59 94i 1080 50i 720 59 94p 720 50p Analog 1024x768 60 ...
Page 19: ...ck 25 90MHz VGA to XGA Conforms to IEEE1394 HDV standards Same con nector on front and rear HD SDI SDI Output Connector BNC Type Supports embedded audio Conforms to SMPTE259M SMPTE272M SMPTE292M SMPTE299M DVI I Output Connector DVI 29 pin single link RGB 8 bit each Digital RGB same timing as analog component Analog Component Y Pb Pr 75 ohms Audio Connectors Input CH1 CH2 XLR type RCA phono type Ou...
Page 20: ...copyright 2007 Roland Corporation All rights reserved All specification and appearances are subject to change without notice Jul 2007 RAM 7007 KS WWW rolandsystemsgroup net ...
