Intro to Audio Production Final Exam Flash Cards

What is the Nyquist Theorem Rule?

A periodic signal must be sampled at more than twice the highest frequency component of the signal.

What is analog sampling?

Audio recorded, stored and reproduced as changes in voltage levels that continuously vary over time in a continuous fashion.

When examining 16 bit in ProTools, it is used for what sound? CD standard? High definition? Or standard depth within 96k sample rate?

CD standard

What is the frequency range and transient response for the following microphones? Dynamic Ribbon Condenser

Dynamic - Least accurate Ribbon - Mid to high accuracy Condenser - Most accurate.

What are the ways to power microphones?

External power supply Phantom power Electric self-charging (ie: batteries)

True or false... The three types of sound space are: in-direct, early reflection and reverberation?

False

Hz is abbreviated for what term?

Hertz

When examining 20 bit in ProTools, it is used for what sound? CD standard? High definition? Or standard depth within 96k sample rate?

High definition

What is the difference between send routing and insert routing?

Insert routing is often used to alter the Sonic or effects characteristics of a single track or a channel signal. Send routing are effects that send augmented signal to your audio.

_______________ reflection is the absorption of acoustic _______________ .

Inverse reflection is the absorption of acoustic energy.

What is the Fletcher-Munson Equal-Loudness Contour Curves?

It indicates the ears average sensitivity to different frequencies at various levels.

kHz is abbreviated for what term?

Kilohertz

Microphones are _____________.

Microphones are transducers.

Psychoacoustics is the study of sound perception and audiology. This includes what?

Music, speech and ambient noise.

What is this microphone polar pattern?

Omni-Directional

Is a mono track one channel or two channel?

One channel

When using materials and design techniques that govern the acoustical reflection and absorption of a recoding studio is the sound reflective or direct?

Reflective

SPL

Sounds Pressure Level

When examining 24 bit in ProTools, it is used for what sound? CD standard? High definition? Or standard depth within 96k sample rate?

Standard depth in conjunction with 96k sample rate

What is digital sampling?

Taking periodic samples from the analog audio waveform then calculates each of these snapshot samples into a group binary words that digitally represent voltage levels.

The ____________ Theory states that periodic signals must be sampled at more than twice the __________ frequency component of the signal being recorded.

The Nyquist Theory states that periodic signals must be sampled at more than twice the highest frequency component of the signal being recorded.

Reverberation time is directly proportional to two factor. What are they?

The volume of the room and the absorption coefficients of the studio surfaces.

What are small monitors?

They are used mostly with radio, tv, video gaming, or cell phone operations.

What are headphones?

They emphasize low level sounds like reverbs equalizers and other effects.

True or false... Audio studio frequency balance is only truly maintained when the use of materials and design ideas surround acoustical reflection and absorption of the instruments being recorded?

True

True or false... Good musicians + good instruments + good performance + good acoustics + good mic + good placement = good sound

True

True or false... Signal processing is called "Plug-Ins" as they are designed to be "plugged" into a workstation to perform a particular real time or even non-real time processing function?

True

What is a far-field monitor?

A large, multi driver loudspeakers that can deliver relatively accurate sound at moderate to high volume levels.

When learning about microphones, what is the number we need to remember?

3 3 types of microphones (condenser,. ribbon, dynamic) 3 types of polar patterns (Uni-directional, Omni-directional and Bi-directional)

What is a near-field monitor?

Allows for a more direct sound leaving the speakers.

What is this microphone polar pattern?

Bi-Directional

Db is abbreviated for what term?

Decibel

Is a stereo track one channel or two channel?

Two channel

What is this microphone polar pattern?

Uni-Directional

The textbook discusses various sound circuits when it comes to digital audio language. Match the technical term to its sound source: Voltage or no voltage Magnetic flux or no flux Reflection off a surface or no reflection Electromagnetic waves

Voltage or no voltage - Circuitry (sound that you hear) Magnetic flux or no flux - LP's, albums, cassette tapes Reflection off a surface or no reflection - CD's or DVD's Electromagnetic waves - Broadcast transmission (AM, FM, Satellite radio)