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Video production > M1S1 > Flashcards

M1S1 Flashcards

1
Q

Is a longitudinal, mechanical wave. It is caused by back and forth vibration of the particles of the medium through which the sound wave is moving.

A

Sound

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2
Q

A science term for vibration per second is?

A

Hertz

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3
Q

The Hertz/Hz term is named after?

A

Heinrich Rudolf Hertz

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4
Q

Has a regular vibration rate (periodic vibration/Harmonic sounds)

A

Music Sounds

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5
Q

Has irregular vibration rates (aperiodic/inharmonic sounds)

A

Human speech

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6
Q

Sounds that human ears can’t detect.

A

Inaudible sounds

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7
Q

The human ear can hear frequencies between? How many Hz?

A

20Hz to 20kHz

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8
Q

Sounds that are below 20Hz Frequency are called?

A

infrasonic

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9
Q

Sounds that are above 20KHz frequency are called

A

Ultrasonic

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10
Q

Attributes of sound perception (6)

A
  1. Pitch
  2. Loudness
  3. Timbre
  4. Duration
  5. Articulation
  6. Diffusion
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11
Q

Attributes of sound perception:

Perception of high and low sounds

A

Pitch

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12
Q

Attributes of sound perception:

Also know as (amplitude). The intensity of a sounds

A

Loudness

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13
Q

Attributes of sound perception:

(Color or quality of sound) the perceive quality of any sounds multiple frequencies changing through time. When you are hearing a singing tone, you’re hearing multiple different pitches that the brain interprets as one.

A

Timbre

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14
Q

Attributes of sound perception:

(Length) not fixed, but something we perceive; our senses of “slowness” vs “fastness” tends to be relative to our heartbeat.

A

Duration

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15
Q

Attributes of sound perception:

“Envelope” of a sound; first few millisecond of a sound, its attack, changes with different instrument.

A

Articulation

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16
Q

Attributes of sound perception:

Sound spatialization; our brain interpret where sounds is coming from; associated with reverberation time; perception of how near or far away a sound source is.

A

Diffusion

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17
Q

Refers to the waves that travels through the air and the are received by the ear, human or otherwise.

A

Sounds

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18
Q

Refers to sounds that has been, in some way or another, be it digital or analog, processed electronically

A

Audio

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19
Q

Are cyclical; that is; they proceed through regular cycles or repetition.

A

Audio waveforms

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20
Q

Is defined as how far along its cycle a given waveform is.

A

Phase

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21
Q

The measurement of phase is given in degrees, with “_______” being one complete cycle.

A

360 degrees

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22
Q

One concern with phase becomes apparent when mixing together two waveforms. If these waveforms are “_____________”, or delayed with respect to one another, there will be some cancellation

A

Out of phase

23
Q

Is the rate at which the samples are captured or played back, measured in Hz, or sample per second.

A

Sample Rate

24
Q

An Audio CD has a sample rate of?

A

44,100Hz, often written as 44kHz

25
Q

The sampling rate should be at least “______________” frequency you want to represent.

A

Twice the highest

26
Q

Sample Rates (6)

A
  1. 33kHz
  2. 44.1KHz
  3. 48kHz
  4. 88.2KHz
  5. 96KHz
  6. 176kHz and 192KHz
27
Q

Sample Rate:

Typically used in digital broadcast and satellite transmission

A

32KHz

28
Q

Sample Rate:

The sample rate for CDs and most consumer digital audio

A

44.1KHz

29
Q

Sample Rate:

The most common sample rate used in broadcast videos.

A

48KHz

30
Q

Sample Rate:

Some engineers claim this sounds better than 44.1KHz but is rarely used.

A

88.2KHz

31
Q

Sample Rate:

Sometimes used in DVDs and other high-end audio recording processes.

A

96KHz

32
Q

Sample Rate:

These ultra-High sample rates generate much larger files and stress your computer more yet offer no significant audio advantage.

A

176kHz and 192kHz

33
Q

Refers to the number of bit you have to capture audio. Series of levels, that audio energy can be sliced at any given moment in time.

A

Bit Depth

34
Q

What is DAW?

A

Digital Audio Workstation

35
Q

Is a computer program that is exclusively designed for recording, editing and playing digital audio files.

A

Digital Audio Workstation

36
Q

Allows you to edit and mix multiple audio sources simultaneously on a music timing grid and to visually see hoe they line up over time.

A

Digital Audio Workstation

37
Q

Components of DAW (5)

A
  1. Computer
  2. Digital Audio Software
  3. Digital Audio Interface
  4. Plug-ins
  5. DSP Acceleration
38
Q

Components of DAW:

Heart of the DAW system. It will determine how many tracks you can record and play at once, how many plug-ins you can apply in real time, how long edits will take and more.

A

Computer

39
Q

Components of DAW:

The Software you choose is the brain. Finding an application that works in the way you prefer to work.

A

Digital Audio Software

40
Q

Components of DAW:

Getting sound in and sound out of the computer and software. Will provide two inputs and outputs, in analog an/or digital formats.

A

Digital audio interface

41
Q

Components of DAW:

Are small “helper” software program that work inside your main recording software and extend its capability.

A

Plug-ins

42
Q

Components of DAW:

If you find yourself running out of computer power; allows to run more plug-ins without overloading the computer

A

DSP Acceleration

43
Q

Audio Interface connectors (5)

A
  1. XLR Jack
  2. 1/4 Inch phone jack
  3. Combo jack
  4. RCA Phono Jack
  5. 1/8inch minijack
44
Q

Audio Interface connectors:

This is capable with microphones and other balanced-line signals. Balanced lines use 3 conductors, which can be designed to minimize hum and noise pickup when carrying low-level signals.

A

XLR jack

45
Q

Audio Interface connectors:

This is common to musical instrument and much pro audio gear. The jack can handle balance or unbalanced lines; balance line inputs can handle unbalance line as well

A

1/4 inch phone jack

46
Q

Audio Interface connectors:

A fairly recent introduction, a “____________” can accept either an XLR or 1/4inch phone plug

A

Combo jack

47
Q

Audio Interface connectors:

A mainstay of consumer gear, “___________” are also found in some DJ audio interfaces and video equipment.

A

RCA phono jack

48
Q

Audio Interface connectors:

This is common for on-board computer audio, but rare for external interfaces expect when included to interface with MP3 players and similar consumer devices

A

1/8inch minijack

49
Q

Means that once a file has been compressed, it can’t be returned to its original uncompressed form from the content of the compressed file.

A

Lossy

50
Q

Means that an uncompressed version of data can be generated from the compressed form. This is a two way, reversible transformation.

A

Lossless

51
Q

Is a special piece of software that’s used to translate uncompressed data into a compressed into a compressed form for storage, and to decompress that compressed form for access or playback.

A

Codec

52
Q

Describe the speed that sound data is played back.

A

Bit Rate

53
Q

Is how many computer bits are used for each sample in a waveform. (How precisely a sound is represented in digital audio)

A

Bit depth

Video production (6 decks)

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