PRO TOOLS 101 QUESTIONS AND ANSWERS SURE
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✔✔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
A+
✔✔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