Lecture I Flashcards
Cables/Connectors can be _____ or ______ with ______ or _________ parts
Analog or Digital, Male or Female
The ______s of your audio
Vein of your audio: Cables/Connectors
2 Unbalanced details & levels
2 Conductors, -10dB signal level, “Consumer” level
2 Balanced details & levels
3 Conductors, 4dB signal level, “Pro” level
Unbalanced Parts
Tip/Sleeve (TS)
Balanced Parts
Tip/Ring/Sleeve (TRS)
You should MARK your cables, even though most cables have have markings, speaker with wires have printed or ridged markings
Use ______ cables when you can
Short
How to deal with AC & audio cables
Cross them at 90 degree axis to reduce interference
Audio interfaces purpose
Allow us to get audio in & out of the computer
Audio interfaces and conversions
Take care of A/D conversions away from the computer
Audio interfaces connections
USB, Firewire, or PCI Cards
A/D Conversion stands for
Analog to Digital
The Primary purpose of a Digital Audio interface
A/D conversion
What does the interface determine?
What sample rates & bit depths you can use, among other things
With A/D Conversions medium or higher rates…
Allow you to capture sound most accurately
Audio CD Sample Rate & Bit Depth
44.1 kHz & 16 Bit
DVD Sample Rate & Bit Depth
96 kHz & 24 Bit
HD Audio Sample Rate & Bit Depth
192 kHz & 32 Bit
Pre-Amp stands for ______ and is used to ________
Stands for Pre Amplification and is used to increase signal level of a sound source
Pre-Amp makes audio ____________
easier to work with
Pre-Amp always used on
Microphones & Record Players
Pre-Amp works on ________ but _________
Works on any input to increase signal but not as first chocie
Pre Amp can have a tremendous impact on
Quality (Class A)
For setting up input levels, we want to
Supply as much signal as possible without exceeding 0 dB
Setting up input levels & sending
send more to sample, send a greater dynamic range
Input levels above zero
Nasty digital distortion occurs
Red Input levels =
HOT
Because volume levels make setting tricky, set levels at
loudest moment
What does padding do
Decrease the input level by a fixed amount
Padding fixed amount for decrease
Usually -10 dB or -20dB
How to use padding
Simply push On/Off
Padding is useful if
Your sound source is very LOUD
Diff. devices & mics have different output levels. You can find padding options on _________
Several types of devices
Phantom Power in Volts
48 Volts DC
Condensor Mics use what kind of power
phantom power
What uses phantom power?
Mic Pre-Amps & mixing boards
How to use phantom power
Simple on/off button to push
Phantom power uses generally one button for
All mic inputs
What does a phase reverser do?
Flips the phase of a signal 180 degrees “out of phase
Phase reverser would cause _____ but _______
Would cause cancellation, but we’re using it to avoid cancellation.
If you’re going to _______ phase matters
MONO
DAW’s will allow you to
correct some phase later
Phase reverser symbol
crossed out O
Phase reverser how to use
push button on/off
How many phase reverse buttons per unit?
1
