Blackmagic Design Cintel Manual De Instalación Y Funcionamiento página 52

'Bi-phase' outputs two single ended quadrature signals on the standard audio XLR3 differential
pair, so direction and frequency can be sensed at the rate you select. 'Timecode frame
synchronized' outputs a single timecode value per transported frame. 'Timecode fps playback
run' outputs timecodes at a fixed rate determined by your project's film frame rate. The voltage
output automatically switches between 4.5V for Bi-phase and 1.5V for Timecode selections.
NOTE Timecode output is supported for 24, 25 and 30 fps free running or frame
locked. Timecode output is unavailable for other frame rates.
Capture speed
When the Audio and KeyKode Reader is installed and configured to capture audio, your
Cintel scanner's maximum scan speed will be capped to 125% of your film's target frame rate.
For example, when scanning film intended for 24 frame per second playback, your scanner's
maximum scan speed will be 30 frames per second. This ensures a 48 kHz sample rate.
Tracking
As the positioning of optical soundtracks can vary slightly from print to print, it is important to
ensure that your reader is scanning the correct audio area on the film. The tracking feature on
the audio reader lets you make fine adjustments to the position of the optical audio scanning
head to ensure you are getting the best possible quality.
To use the tracking feature:
1 Plug a set of headphones or an audio analyzer into your reader's 3.5mm headphone
jack. Lift open the rubber dust cover to access the connector.
2 With headphones on, or an analyzer plugged in, use your scanner's transport controls
to shuttle to a place in the film where audio is present and play the film.
3 While listening to, or analyzing, the audio of your film, rotate the tracking knob
clockwise or counterclockwise. The tracking knob is located on the upper section of
your reader. As you adjust the tracking knob, the scanning head will move closer or
further away from the film's edge so you can refine its position over the optical track.
You will also hear the loudness and clarity of the audio change as the tracking is
adjusted. An audio analyzer will operate on the same principle, but with more precision,
as you move the tracking knob.
For stereo tracks, simply make adjustments until you find the optimum position where both
channels are equally strong and clear with no distortion.
For mono audio, it's effective to set the audio type to stereo when adjusting the tracking.
This lets you use the left and right stereo channels to center the track, which will ensure the
mono track will scan at the best quality. However, don't forget to reset the audio type to mono
after you have optimized the tracking.
Optional Audio and KeyKode Reader 52