Quiz 3 Flashcards
Pick the proper key combination to “Group” highlighted tracks in Protools.
⌘Command and G
If the speed of sound is roughly 1,130 feet per second, the frequency of a 22 foot wavelength is how many Hertz?
51.36
The image shows a waveform (Red) which is being misrepresented by the digital conversion (Blue). The way to solve this is:
Increase the Sample Rate
Pick the proper key combination to “Undo” in Protools.
⌘Command and Z
Amplitude Quantization refers to:
An error in the amplitude value, due to the resolution of the bit depth.
If the speed of sound is roughly 1,130 feet per second, the wavelength for a frequency of 4,814 Hz is how many feet?
0.23
An audio CD, in order to conform to the red book standard must have a sample rate of ______ hertz and a bit depth of ______ bits
44100Hz
16-bit
The part of a sound wave with pressure higher than the barometric mean (normal air pressure) is said to be in a state of ______
Compression
The part of a sound wave with pressure lower than the barometric mean (normal air pressure) is said to be in a state of ______
Rarefaction
What type of connector uses the AES/EBU digital transfer format?
XLR
What type of connector uses the ADAT digital transfer format?
Toslink
What type of connector uses the S/PDIF (E) digital transfer format?
RCA
What type of connector uses the S/PDIF (O) digital transfer format?
Toslink
The Nyquist Theorem states that the ___ ___ must be at least twice as ___ as the highest recorded ___, in order to avoid ___ frequencies.
sample, rate, high, frequency, alias
Wavelength is calculated using which formula?
Speed of Sound / Frequency
Pick the proper key combination to “Consolidate” in Protools.
⌥Option(alt) and Shift and 3
Pick the proper key combination to “Cut” out a selected area in Protools.
⌘Command and X
The average range of human hearing is:
20Hz - 20kHz
In this image of a sine wave, which point along the zero line coincides with 90º?
B
A sample is
An instantaneous record of the amplitude of an analog signal, the value of which is stored as a binary number.
What are the three types of stereo digital transfer formats?
AES/EBU
S/PDIF (E)
S/PDIF (O)
When noise is introduced to average out quantization errors, it’s known as ______
Dither
Frequency is measured in ______
Hertz
Which of the following is not a stereo digital transfer format?
AES/EBU
S/PDIF (E)
S/PDIF (O)
ADAT
ADAT
When looking at a waveform the amount of deviation above or below the zero line represents ______
Amplitude
According to the Nyquist Theorem, the minimum sample rate for a converter which has a filter starting at 20kHz and ending at 22.05kHz is 40,000 a second (T/F)?
False.
The wavelength of 2260 Hz is:
6 inches (0.5 feet)
This is a picture of the Pro Tools ______ window.
Pre-roll 0| 0| 000| Start 30| 4| 000
Post-roll 0| 0| 000| End 31| 4| 959
transport = Pro Tools Length 1| 0| 959
◔⏮ ⏪ ⏩ ⏭ ▇ ▶⬤
Transport
Bit depth refers to:
The word length of a binary number
