Final Review Flashcards

(40 cards)

1
Q

What are examples of non pitched sounds?

A

Radio static, snare drum

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2
Q

What are examples of a period wave that does repeat?

A

Piano, guitar, our singing voice

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3
Q

What is the measurement for Frequency?

A

Hertz

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4
Q

What does Kilohertz mean?

A

1000 Hertz

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5
Q

What do you do to make Frequency up an octave?

A

Double it.

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6
Q

What does cent mean?

A

Up a half step.

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7
Q

What is the measurement for amplitude?

A

Decibel

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8
Q

What is the Frequency of the 7th harmonic?

A

700 Hertz

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9
Q

What are examples of sound that is non harmonic?

A

Metallic instruments: gong or bell

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10
Q

What does resonance do to a sound?

A

Changes the tone.

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11
Q

What does resonance of a vocal track do?

A

Changes various vowel sounds.

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12
Q

What are examples of resonance?

A

Solid Materials: Air enclosed, sea shell, the hollow box of a guitar, wood

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13
Q

What does an Equalizer do?

A

Changes the frequency response on purpose.

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14
Q

What is a flat Frequency Response?

A

What sounds comes in, comes out exactly the same.

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15
Q

What causes comb filtering?

A

Two copies of the same sound arriving at two different times getting picked up twice.

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16
Q

What type of Distortion do we encounter most?

A

Clipping

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17
Q

How do you avoid clipping?

A

Reduce the level.

18
Q

What creates clipping?

A

Excessive levels.

19
Q

What does Distortion do?

A

It adds high frequencies and makes quieter sounds more apparent.

20
Q

Why wouldn’t you use delay on percussion and drums?

A

It would create another rhythm or echo.

21
Q

If the faster the tempo, should the reverb time be shorter or longer?

22
Q

What does lots of Reverb tell us?

A

Everything sounds far away.

23
Q

What is Panning?

A

The combination of arrival time and level/volume change. It is also how things are positioned from left to right.

24
Q

How do we perceive the direction of sound by which sound is earlier?

25
True of False? Sounds below the threshold are heard.
False
26
What does a compressor do?
It reduces the volume of sounds that exceeds the threshold.
27
What does the limiter do?
Makes sure that certain notes don't stick out.
28
What is the speed of sound?
1140 feet per second
29
How is delay created?
When a sound travels through the air at the speed of sound. Also when a sound reflects off a boundary creating an alternate, longer path to the listener.
30
Delay is...
A simple repeat of the sound, when longer than 30ms can be called an "echo".
31
What is Delay time?
Measured in milliseconds and the length of a single delay.
32
What is Reverberation?
Many reflections blending into a smooth sound.
33
What is Reverb time?
the amount of time it takes reverb to decay to silence. (-60
34
What is Quantization?
``` When a signal is converted from analog to digital, the signal is converted to a series of numerical values. ```
35
What is a Frequency Response?
``` a system's reproduction of the different frequencies in the spectrum, often quoted by its upper and lower limits ```
36
What is a Harmonic?
``` a mode of vibration that is a whole-number multiple of the fundamental. ```
37
What is a Fundamental?
Basic mode of vibration.
38
What is a Harmonic Spectrum?
``` a sound which is made up of harmonic overtones following the harmonic series. (whole-number multiples of the fundamental.) ```
39
What is Transient?
A single pulse of sound.
40
What is Timbre?
Tone color, controlled by the wave shape.