Date:Thu, 23 Oct 2003 11:51:05 -0700
Reply-To:Association for Recorded Sound Discussion List
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Sender:Association for Recorded Sound Discussion List
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From:Rod Stephens <[log in to unmask]>
Organization:S.A.V.E. Stephens Audio Video Enterprises
Subject:Re: Where to find NTSC Color Bar and sound tones
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As we progress in this discussion, we are getting more into the basics
of professional video reproduction which may be off topic for our forum,
but I wanted to add that about one to two minutes of these color bars
and audio tones are generally put on the head of a professional video
tape when it's recorded to enable an engineer to be able to play it back
at a later time with the proper audio and video settings. So, both the
video tape and the monitor used to view it must be properly set up for
things to be up to SMPTE standards.
Fortunately, as someone has already mentioned, most home equipment
playback equipment does a pretty good job of this, automatically, so
such "standards" are truly academic to the average viewer. Generally,
it's the picture (or TV) monitor settings at home that distort the
original intent and the balances of audio and video of the recording
when it was mastered.
Rod
Family Theater Productions
Aaron Z Snyder wrote:
>Rod Stephens wrote:
>
>
>
>>When I worked for a video company in the '60's, we had a variation on
>>the NTSC phrase: "Never Twice the Same Color" since, unlike many
>>European systems, we have knobs on our equipment that allow us to make
>>the video picture look any way we want.
>>
>>
>
>
>The simplest way to set up a monitor is to use SMPTE (Society of Motion
>Picture and Television Engineers) color bars, which is a long-established
>variant of simple color bars. The extra information allows the user to set
>brightness and color-balance to a (more-or-less) repeatable setting so that
>the color of a production can be properly evaluated.
>
>Aaron Z
>
>
>
