Front Panel Operations
Imagestore 750 User Manual
Page 174
Miranda Technologies Inc.
Pass Close Cap
Close caption information is usually passed through the Imagestore whatever
this particular option is set to. The reason that the option exists is that when
the standard is set as NTSC (525), close caption information is found within
the active picture (lines 20/21), and so it will be destroyed when graphics are
keyed over these lines.
When this option is enabled the Imagestore ensures that the close caption
information is preserved if graphics are keyed over lines 20/21. Disabling the
option instructs the keyers/mixers to treat these lines as part of the active
picture so that they may be keyed over.
On HD standards, close caption is contained in line 9 – which is outside the
active picture. Since this is never processed by the keyers the close caption
information is preserved whatever the option selected.
Please note that when SDI picture is routed to a DVE, the close caption
information may be visible at the top of the DVE window. To avoid this
problem it is recommended that all DVE sequences be cropped by 2.5% at
the top to remove this undesirable effect.
Summary of Contents for imagestore 750
Page 12: ...Preface Imagestore 750 User Manual Page 12 Miranda Technologies Inc ...
Page 186: ...Front Panel Operations Imagestore 750 User Manual Page 186 Miranda Technologies Inc ...
Page 210: ...RCP Operations Imagestore 750 User Manual Page 210 Miranda Technologies Inc Transitions ...
Page 216: ...RCP Operations Imagestore 750 User Manual Page 216 Miranda Technologies Inc ...
Page 250: ...Graphics Co Processor Imagestore 750 User Manual Page 250 Miranda Technologies Inc ...
Page 268: ...Web Page Imagestore 750 User Manual Page 268 Miranda Technologies Inc ...
Page 274: ...Installation Imagestore 750 User Manual Page 274 Miranda Technologies Inc ...
Page 284: ...Installation Imagestore 750 User Manual Page 284 Miranda Technologies Inc ...
Page 288: ...Support Imagestore 750 User Manual Page 288 Miranda Technologies Inc ...
Page 292: ...Imagestore Specifications Imagestore 750 User Manual Page 292 Miranda Technologies Inc ...
Page 345: ...Imagestore 750 User Manual Dolby Decode Encode Miranda Technologies Inc Page 345 ...
Page 347: ...Imagestore 750 User Manual Dolby Decode Encode Miranda Technologies Inc Page 347 ...
Page 392: ...Up Mix Imagestore 750 User Manual Page 392 Miranda Technologies Inc ...
Page 400: ...Software Update Imagestore 750 User Manual Page 400 Miranda Technologies Inc ...
Page 420: ...Menu Tree Imagestore 750 User Manual Page 420 Miranda Technologies Inc ...