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Digital Audio III Notes
Mark Steele
29
Engineering
Undergraduate 2
07/27/2012

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Cards

Term
Black/Color Busts run at how many cycles per second?
Definition
59.94 Hz
Term
What are four types of effects?
Definition
1. Hard FX - Syncs to movement and picture
2. Natural FX - Foley
3. Background/Ambient FX - FXs that don't sync to anything in the picture except start and stop. Specific BG FXs are horn honks or bird caws.
4. Movement FX - FXs that are played although the source isn't on screen, then appear on screen, then leave the screen still being played.
Term
What is strip-silence?
Definition
A gate-like program.
Term
Level out dialog, narration, and overdubs. Vocals are always in front.
Do music.
Do SFX.

Pan, then get level.
Definition
Yeah.
Term
Speakers should be angled at __°.
Definition
Speakers should be angled at 30°.
Term
What is the X3 curve?
Definition
The low end rolls off at 100Hz. Starting at 2kHz, each octave above is lowered by one dB.
Term
Use RTAS then TDM plugins, right?
Definition
Yes.
Term
What does AFL and PFL mean?
Definition
After Fader Listen and Pre Fader Listen.
Term
Define each:

1) Lt/Rt
2) L/R
3) L, C, R
4) L, C, R, S
5) L, C, R, Ls, Rs
6) L, C, R, Ls, Rs, LFE
7) L, R, C, LFE, Ls, Rs
8) L, R, Ls, Rs, C, LFE
Definition
Left Total/Right Total (Stereo mix down of a 5.1 mix)
L, C, R, S - 4.0
L, C, R, Ls, Rs - (5.0)
L, C, R, Ls, Rs, LFE - Film Format
L, R, C, LFE, Ls, Rs - SMPTE (TV)
L, R, Ls, Rs, C, LFE - DTS (DVD)
Term
How does a 5.0 mix split into Lt and Rt?
Definition
L to L
Ls to L with -90°, -6dB
C to L with -3dB
LFE to L


R to R
Rs to R with -90°, -6dB
C to R with -3dB
LFE to R
Term
What does SDDS stand for?
Definition
Sony Dynamic Digital Sound (7.1) (Not compatible with anything else)
Term
What does THX stand for?
Definition
Thomlenson Holman Experiment
Term
What does SMPTE stand for?
Definition
Society of Motion Picture and Television Engineers
Term
What does NTSC stand for?
Definition
National Television Standards Committee.
Term
What does PAL stand for?
Definition
Phase Alternating Line (European)
Term
What does AES/EBU stand for?
Definition
Audio Engineering Society/European Broadcast Union
Term
What does FCC stand for?
Definition
Federal Communications Commission
Term
What are SMPTE and PAL Time Code Standards and Time Base References?
Definition
SMPTE:
30 - 60 Hz
29.97 ND - 59.94 Hz
29.97 DF - 59.94 Hz
24 - 60 Hz
23.976 - 59.94 Hz

PAL:
25 - 50 Hz
Term
What does the Digi Design Sync I/O do?
Definition
It locks Pro Tools to SMPTE TC, MTC, Word Clock, Black/Color Burst, and the output all the same.
Term
How does the board communicate with the computer?
Definition
With the Human User Interface (HUI).
Term
What are aux tracks used for?
Definition
Automations, signal processing, and combining tracks.
Term
What does VCA stand for?
In what ways is it better than an aux track?
Definition
Voltage Controlled Amplifier.

It's better than in aux tack because it doesn't need voice, and can act like a group master fader without activating grouping (volume control).
Term
What is the word clock used for?
Definition
Keeping everything in sync.
Term
If a region sample rate is different that Pro Tools', it'll play slightly off.
Definition
Jah mon.
Term
What is the difference from SMPTE to PAL?
Definition
4%

# x 0.4 = [4% of #]
Term
How much is video pull down?
Definition
1%

1% of 48 = 0.048
Term
List the Film Format speaker order.
Definition
L, C, R, Ls, Rs, LFE - Film Format
Term
List SMPTE speaker order.
Definition
L, R, C, LFE, Ls, Rs - SMPTE (TV)
Term
List DTS (DVD) speaker order.
Definition
L, R, Ls, Rs, C, LFE - DTS (DVD)
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