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Sound Production > Microphones > Flashcards

Microphones Flashcards

1
Q

AKG C414B - ULS

A 
Type: Condenser
48V: Yes
Polar response: Variable (4)
Applications: Vocals, piano, percussion.
Character: Full-bodied.
Features: Pads + HPFs
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2
Q

AKG C451B

A 
Type: Condenser
48V: Yes
Polar response: Cardioid
Applications: Acoustic guitar, snare, hi-hats, overheads.
Character: High-end rise.
Features: Pads + HPFs
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3
Q

AKG D112

A 
Type: Dynamic
48V: No
Polar response: Cardioid
Applications: Kick, bass cabinet, trombone, double bass, cello
Character: 4K presence rise.
Features: None.
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4
Q

Audio Technical AE3000

A 
Type: Condenser
48V: Yes
Polar response: Cardioid
Applications: Guitar cabinet, toms, snare, timpani, overheads, horns.
Character: Open
Features: Pad + HPF.
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5
Q

Audio Technica AT4031

A 
Type: Condenser
48V: Yes
Polar response: Cardioid
Applications: Snare, overheads, acoustic guitar, piano, horns.
Character: Slight high-end rise.
Features: HPF.
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6
Q

Audio Technica AT4050

A 
Type: Condenser
48V: Yes
Polar response: Variable (3)
Applications: Vocals, piano, strings, overheads, guitar cabinet.
Character: Well balanced.
Features: Pad + HPF.
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7
Q

The dB is used when measuring mics because:

A

It’s the standard for acoustic pressure measurements in audio.

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8
Q

20 micropascals is:

A

0dB-SPL, which is the hearing threshold of the average human at roughly 3kHz.

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9
Q

What is sensitivity?

A

The sensitivity states what voltage a microphone will produce with a certain sound pressure level input. A microphone with high sensitivity will give a high voltage output and will therefore not need as much amplification (gain) as a model with lower sensitivity.

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10
Q

What happens if you connect a speaker to a mic input on a mixer?

A

The speaker works like a big microphone.

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11
Q

What is the Proximity Effect?

A

Is an increase in LF response when a cardioid mic is close to an acoustic source.

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12
Q

When a mic that is 3 inches in front of a singer is moved to 6 inches, the level will:

A

Drop 6 dB and so does the gain-before-feedback capability.

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13
Q

The tightest cardioid pick-up pattern is:

A

Hyper-cardioid.

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14
Q

An omni mic placed a few millimeters away from a reflective surface creates an effect identical to a:

A

PZM or Boundary mic. Using an omni against the floor or taped to a wall with the diaphragm within a 1/8-inch off the surface puts it in the pressure zone for most of the audio bandwidth.

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15
Q

Shure introduced the 3B and 10B Carbon microphones in:

A

1936.

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16
Q

The Sennheiser MD421 was introduced in:

A

1960.

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17
Q

What stereo micing technique uses a coincident pair of two bi-directional microphones in the same point, angled at 90° to each other?

A

Blumlein stereo.

18
Q

What stereo micing technique uses two cardioid mics with the capsules spaced 17cm apart, with the two mics at a 110° angle creating the stereo image?

A

ORTF (Office de Radiodiffusion Television Francais).

19
Q

What stereo micing technique uses a cardioid microphone capsule as center channel and a bi-directional figure-eight-mic at the same point, angled at 90°, which is then brought in on faders, out-of-phase to create the stereo image?

A

M-S.

20
Q

Does a PZM receive direct and reflected sound simultaneously?

A

Yes.

21
Q

Is the Crown PCC an omnidirectional microphone?

A

No. The PCC series are half-cardioids and half-super-cardioids.

22
Q

If wired according to the AES standard, pin 2 of a microphone’s XLR connector will:

A

Always be “hot”, “live” or positive. Positive pressure on the mic’s diaphragm will produce a positive voltage on pin 2.

23
Q

Does an electret microphone require a power supply?

A

Yes. It needs either phantom power from the mixer it’s plugged into or a battery.

24
Q

Which microphone naturally has a figure eight or bi-directional pick-up pattern?

A

Ribbon.

25
Q

What is considered low impedance (lo-z)?

A

<600 ohms.

26
Q

What is considered medium impedance (mid-z)?

A

600-10k ohms.

27
Q

What is considered high impedance (hi-z)?

A

> 10k ohms.

28
Q

Common uses for Shure SM58? (3)

A

Vocals
Brass
Drums

29
Q

Common uses for Shure Beta58A? (1)

A

Vocals

30
Q

Common uses for Shure SM57? (4)

A

Guitar amps
Snare drums
Toms
Percussion

31
Q

Common uses for Shure Beta57A? (3)

A

Guitar amps
Snare drums
Vocals

32
Q

Common uses for Shure Beta52? (2)

A

Kick drums

Bass guitar

33
Q

Common uses for AKG C391? (4)

A 
Choirs
Lecterns
Acoustic instruments
Hats
Cymbals
Percussion
34
Q

Common uses for AKG C392? (1)

A

Stereo A/B

35
Q

Common uses for AKG D112 (“The Egg”)? (5)

A 
Kick drums
Double bass
Cello
Bass guitar amps
Trombone
36
Q

Common uses for Sennheiser E604? (3)

A

Toms
Snare drums
Percussion

37
Q

Common uses for AKG C414B - ULS? (3)

A

Vocals
Piano
Percussion

38
Q

Common uses for AKG C451B? (4)

A

Acoustic guitar
Snare
Hi-hats
Overheads

39
Q

Common uses for Audio Technical AE3000? (6)

A 
Guitar cabinet
Toms
Snare
Timpani
Overheads
Horns
40
Q

Common uses for Audio Technica AT4031? (5)

A 
Snare
Overheads
Acoustic guitar
Piano
Horns
41
Q

Common uses for Audio Technica AT4050? (5)

A 
Vocals
Piano
Strings
Overheads
Guitar cabinet

Sound Production (8 decks)

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