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Posted by doc on 09/20/05 04:27
great information R. Michael. you sound quite UP on the subject of the
DVX100 and wondered if you've heard of the white balance being unstable in
this camera? one feller posted that in the studio the white balance shifted
off when panning. thoughts/issue?
also, since you apprear to be really UP on the cam, how would you compare
the 100A to the Sony Z1U (which btw i've heard has a lower quality audio
than the 100A but i do not know that for sure)?
thanks in advance.
doc
"R. Michael Walker" <rmwpro@pacbell.net> wrote in message
news:ixpMd.591$aW6.403@newssvr22.news.prodigy.net...
> In regards to the excellent audio you need to know this:
>
>
>
> The DVX100 audio meter, in contrast to most other meters, begins the "red
> zone" at -12dB. Thus, by avoiding any indications in the red zone, you'll
> have low audio levels.
>
> Just about every miniDV camera uses -12 dBFS as the reference. With your
> zero VU there, this camera has 72 dB s/n from a line-level input... which
> is actually pretty good for a miniDV. If you use -20 dBFS as a reference,
> you not only lose 8 dB more s/n, but editorial freaks since they can
> hardly see the waveforms in Premiere or Final Cut.-20 dBFS is a lovely
> reference in the pro world, but miniDV (which I guess
> more "pro" shoots are turning to) doesn't have the s/n to support it.
>
>
>
> DVX100 AUDIO METERS:
> -----------+------|
> -----------+------|
>
> Everything up to the '+' is white; after that, red;
> '+' is -12dB, '|' (or maybe the one before) is 0dB.
>
> ALC prevents the signal from ever going more than 4 bars above the '+'.
>
> You should get undistorted sound at least that far; in fact, it should be
> fine as long as the '|' is never hit. Many people at DVXUser report good
> results when audio peaks reach the last '-' or two before the '|'
>
> If you look at the audio level meters there should be a white blotch
> that is larger than the the rest of the white marks. This white
> blotch is -12dbfs. If you press the user 1 button on the camera, it
> will put up color bars. Each white square on the meters stands for
> 2db, so if you count down from the large white blotch you will find
> that 1 mark past the white contrast bar = -20dbfs. That is where you
> want to set your tone. If you prefer -18dbfs than set tone 2 notches
> past the white contrast bar. It is ok to go into the red on the
> meters as it is the same as the digital scale. For some reason,
> Panasonic put there reference mark on the scale at -12.
>
> And be sure to use the gama controls. that more than the frame rate will
> give you a "film Look". Also light and your image will be wonderful.
> Mike
>
>
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