Shared Flashcard Set

Details

Microphones
n/a
45
Audiology
Undergraduate 1
11/26/2012

Additional Audiology Flashcards

 


 

Cards

Term
Pin 1 of an XLR is the
Definition
Ground (and/or Screen, Shield). Also distributes phantom power.
Term
Pin 2 of an XLR cable is
Definition
the Live of HOT signal
Term
Pin 3 of an XLR cable is
Definition
The Return or COLD signal
Term
The _____ of a cable prevents interference from getting through the cable
Definition
shield (screen, Pin 1)
Term
This mic is an orginal design from a long ass time ago, and no one uses it anymore except for FX or whatever
Definition
Carbon. Sound pressure is pushed through carbon ganules in the casing.
Term
When the diaphragm in this micophone moves in response to sound, the attached coil moves in the magnetic field and generates a very small current in the wire of the coil.
Definition
Dynamic
Term
The md421 is a very popular ____ mic
Definition
Tom
Term
If the result of using an md421 is "tinny" or flat, you probably have the mic set to _____ instead of _____
Definition
speech instead of music
Term
The most popular snare mic. Cheap, durable and incredibly directional.
Definition
sm57
Term
A dynamic mic can tolerate _____ sound pressure levels, while the _____ frequency response is compromised.
Definition
High, High
Term
In a Ribbon microphone, what is used as the Diaphragm
Definition
A RIBBON OBVIOUSLY
Term
The light weight of the ribbon in Ribbon mic compromises the ______ frequency response
Definition
High
Term
Don't use a Ribbon mic on Percussion because
Definition
of the transient- it will pull the ribbon and snap it back enough to break it. (high transients can be captured through a speaker cabinet by tilting the mic)
Term
Ribbon Microphones are what polar pattern?
Definition
bi-directional
Term
You can use phantom power on a Ribbon mic: T or F
Definition
FALSE!!
Term
Condensor microphones need Phantom Power: T or F
Definition
T
Term
In a condensor mic, the 48V __ current is sent along the balanced mic cable to the mic at the same time as the __ audio signal
Definition
DC, AC
Term
A Capacitor mic is the same as a _____ mic
Definition
Condensor
Term
Pros of a condensor mic
Definition
Very sensitive, better high & low frequency response, less noise
Term
Cons of a Condensor mic
Definition
Usually expensive, may produce (if cheap) a cold sound
Term
Elecrets are similar to
Definition
Condensor
Term
Why are elecrets different from condensors?
Definition
They do not require phantom power. The circuitry requires some power, however, usually from a battery in the handle.
Term
What is considered the most versatile condensor mic?
Definition
U87
Term
Name the different polar patterns
Definition
Omnidirectional, uni-directional OR cardiod, hyper-cardiod, figure of eight or bi-directional
Term
An instrument that is recorded frequently with a ribbon mic
Definition
Trumpet
Term
PAD is a ___ dB reductions
Definition
-10
Term
a PAD reduces the ____ signal of the mic
Definition
output
Term
A _________ switch attenuates frequency below a specified point, usually around 75 hz
Definition
bass roll-off
Term
Low-cut filters on mics are used to eliminate
Definition
room rumble, a/c noise, structural vibrations. Use them on sources that don't have low frequency.
Term
Mics most commonly used for low-end frequencies
Definition
(Shure) B52, (Senn) E602, (AKG) D112. The sure has a boost around 2k so it has that "snap", the senn has mostly lows, and the AKG is a mix of both.
Term
Another name for a Dynamic Mic
Definition
Moving Coil
Term
_______ mics are usually used in Live situations because of the toleration of High SPL
Definition
Dynamic
Term
When the rear rejection ports are closed off on a mic
Definition
your mic becomes Omni
Term
To record an acoustic guitar & to capture as much room sound as possible
Definition
omni condensor
Term
What can you do with a dual diaphragm condensor?
Definition
Switch polar patterns
Term
A way to capture vocals without a microphone
Definition
headphones (speaker), left side only
Term
Most rejection on a bi-directional mic happens where?
Definition
on the sides, (90/270 degrees)
Term
PZM
Definition
pressure zone microphone. Not affected by placement.
Term
Where is the high frequency coming out from the cone of an amp?
Definition
THe middle
Term
If the mic is not considered tube, it is
Definition
Solid State
Term
Examples of Tube mics (from the list)
Definition
Gemini, 5600
Term
DI boxes are used to
Definition
convert high-Z to low-Z (impedance) (high-Z is Unbalanced TS, comes out through a balanced XLR as low-Z). Also could offer ground lift, fliter, pad, 180 flip. Anytime you don't want to use an amp and want to connect straight to pre-amp.
Term
Phase Reveral switch flips which pins?
Definition
2 & 3 (hot & cold)
Term
proximity effect
Definition
the increase in bass response when a sound source is closer to the mic- omni mics are not affected by this
Term
inverse square law
Definition
every time the distance between a mic and a source is doubled, the SPL drops by 6 dB
Supporting users have an ad free experience!