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WorksheetsAudio Basics
Total questions: 49
Worksheet time: 25mins
What is the unit of measurement for the loudness of sound?
Watts
Decibels
Joules
Hertz
What is the unit of measurement for the frequency of sound?
Hertz
Pascal
Celsius
Amperes
At what dB level is sound considered the "threshold of pain"?
85 dB
120 dB
135 dB
150 dB
What is likely to happen when sound reaches the "threshold of pain"?
You can start to hear the sound
The sound becomes comfortable to listen to
Your ears may ring and hearing damage can occur
The sound becomes completely silent
At what level does a sound begin to damage your hearing?
20 dB
30 dB
45 dB
90 dB
What is used to measure loudness in audio production?
Ohmmeter
VU meters
Ammeter
Voltmeter
What is considered the maximum desirable sound level in live production? If you go beyond that, the sound will be distorted
-12 dB
-6 dB
0 dB
6 dB
In post-production, what should the audio levels be between?
0 and +6 dB
-12 and -6 dB
-20 and -10 dB
-30 and -20 dB
What does frequency refer to in terms of sound?
The loudness of the sound
The duration of the sound
The basic pitch of sound (how high/low it is)
The speed of the sound wave
Which frequency corresponds to an extremely low pitch, similar to a rumble?
20Hz
200Hz
2,000Hz
20,000Hz
Which frequency range would be similar to the highest note of a violin?
15,000Hz
150 Hz
1000 Hz
400 Hz
What is considered the hearing range for humans?
20Hz - 20,000Hz
10Hz - 10,000Hz
50Hz - 10,000Hz
100Hz - 18,000Hz
What is the consequence of having hard walls and tile floors in a sound booth?
It enhances the quality of the recording.
It allows too much reverberation.
It makes the sound booth look more professional.
It reduces the cost of soundproofing.
What does 'reverb' refer to in the context of acoustics?
The sound remaining after the original sound stops and bouncing around
The equipment used for recording sound.
The soundproofing material used in sound booths.
The technique used to enhance vocal recordings.
What is one of the pros of a dynamic microphone?
Requires a lot of power
Not durable
Low cost
Best choice for quality audio
Which of the following is a con of a dynamic microphone?
Rugged and durable
Great for ENG
Larger and heavier
No power necessary
How does a dynamic microphone work?
Uses a large diaphragm that vibrates with sound
Uses a small coil that moves within a magnetic field when activated by sound
Converts sound into electrical signals through optical sensors
Requires digital processing to capture sound
What is a characteristic feature of a condenser microphone?
It has a dynamic coil that moves to produce a signal
It has a plate that moves against another plate to produce a signal
It uses a ribbon to produce a signal
It does not require any power source
Which of the following is a disadvantage of condenser microphones?
They are less sensitive
They are very durable
They are expensive
They are large in size
What is one of the pros of using a condenser microphone?
They are not sensitive to shock and temperatures
They produce low-quality sound
They can be small in size
They do not need any power source
What type of power does a condenser microphone require?
Solar power
Kinetic power
Battery or phantom power
No power required
What does a ribbon microphone use to capture sound?
A large diaphragm
A small ribbon moving in a magnetic field
A dynamic coil
An electrical condenser
Why are ribbon microphones rarely used outside an audio booth?
They are too expensive
They require a power source
They are very sensitive to rough handling and moving air
They are not compatible with modern recording equipment
What does an omnidirectional microphone pickup pattern do?
Picks up sound only from the front
Picks up sound in all directions
Picks up sound only from the back
Does not pick up sound
What is the shape of the pickup pattern of a cardioid microphone?
Circle-shaped
Heart-shaped
Cone-shaped
Square-shaped
What type of microphone is commonly worn on a jacket or shirt for hands-free operation?
Handheld mic
Lavalier (lapel) mic
Boom (shotgun) mic
Desktop mic
Which microphone type is designed to be placed on a desk?
Handheld mic
Lavalier (lapel) mic
Boom (shotgun) mic
Desktop mic
What is one of the advantages of using a handheld microphone for reporters?
It is less durable
It restricts the reporter's movement
It requires a power source
It is rugged and durable
Why might singers prefer condenser handheld microphones?
They are less expensive
They offer better sound quality
They are heavier
They are less visible
Which is a disadvantage of handheld microphones?
They are too sensitive to sound
They can be distracting because they take up visual space
They have a very short lifespan
They cannot be moved easily
What type of microphone is small, rugged, and omnidirectional, often used in video productions?
Shotgun microphone
Lavalier microphone
Handheld microphone
Studio microphone
Where is a lavalier microphone typically clipped on a person?
On the collar
6 to 8 inches below the talent's chin
On the sleeve
On the back
What is one of the advantages of using a lavalier microphone?
It can only be used indoors
It restricts the talent's movement
The sound quality varies greatly
The talent can move freely
What is a disadvantage of using a lavalier microphone?
It is too large to be concealed
It does not require any setup
Clothing may rub the mic or muffle the sound
It cannot be used with multiple on-camera subjects
What should be avoided to prevent obstructing the sound of a lavaliere (lav) mic?
Material rubbing the mic
Using a mic clip
Running the mic up the back
Clipping the mic to a button flap
What is recommended to keep the mic cable from moving when a lav mic is used outside clothing?
Using rubber bands
Using metal clips
Using cloth tape on the talent's back
Using plastic ties
What is the purpose of a boom microphone?
To amplify sound on stage
To pick up sound without being seen on camera
To record music in a studio
To provide sound effects for movies
What type of microphone is typically mounted to the end of a telescoping boom pole?
Condenser microphone
Dynamic microphone
"Shotgun" microphone
Ribbon microphone
How can a boom microphone be positioned relative to the talent?
Only from the front
Only from the back
Can be held above talent or at a low angle below
Must be held at a fixed distance
What is a desktop microphone commonly used for?
Portable recording
Fixed positions
Outdoor events
Personal use
Where are desktop microphones often seen?
Concerts
Game shows
Beach parties
Picnics
What does a wireless microphone system involve?
A microphone with a cable and a wireless receiver
A microphone with a transmitter and a wireless receiver
A microphone with a transmitter and a wired receiver
A wireless transmitter and a cable-connected microphone
Which of the following is a benefit of using wireless microphones?
Limited movement due to wires
Complete freedom of movement without wires
Requires a direct line of sight
Can only be used in close proximity to the receiver
Compared to VHF, UHF wireless microphones are generally:
Cheaper and have more interference
More expensive and have less interference
More expensive and have more interference
Cheaper and have less interference
What is the purpose of windscreens as described in the learning material?
To amplify sound frequencies
To let normal sound frequencies through and filter out wind noise
To block all sound frequencies
To record wind noise more clearly
What are windscreens typically made of?
Plastic
Acoustic foam rubber
Metal mesh
Cloth fabric
What is another name for a windsock used in audio recording?
Dead Rat
Dead Cat
Dead Dog
Dead Mouse
What is the windsock used for? (pick 2)
To reduce wind sound
To improve the microphone's bass response
To protect the shotgun mic
To make the microphone look larger
What is a deadcat made out of?
Smooth leather
Ragged cloth
Synthetic fur
Silk fabric
