Correct Answers Graded A+
Name five types of production tasks that ProTools can be used for.
Audio, MIDI, notation, mixing, and post-production
What is the AIR group?
Advanced Instrument Research
What types of products does the AIR Software Group specialize in?
Innovative plug-ins for ProTools
Examples of AIR plug-ins:
Virtual instruments; Air Creative collection; Structure
What is the frequency range of human hearing?
20 Hz to 20 kHz
What does the frequency of a sound wave affect in terms of how we perceive the
sound?
Frequency affects pitch
How is frequency measured?
Cycles per second (CPS) or Hertz (Hz)
What does the amplitude of the sound wave affect?
Amplitude affects loudness
How is amplitude measured?
Decibels (dB)
What is the threshold of pain?
120 dB
What is sampling?
The process of taking discrete readings of a signal at various moments in time
What is the sample rate?
The frequency with which digital snapshots (samplings) are collected
What is the Nyquist Theorem?
In order to produce an accurate representation of a given frequency of sound, each
cycle of the sound's vibration must be sampled a min of two times
What is the standard sample rate of an audio CD?
44.1 kHz
What is the useful dynamic range of speech and music?
40 to 105 dB
What is A/D conversion?
Analog-to-digital conversion
What is quantization?
Capturing the relative amplitude of a sample by quantifying (assigning) to sample to the
closest available amplitude value
What is bit depth?
Binary word length
What is the greatest bit depth possible?
32-bit floating point
What is the highest sample rate possible?