Protools 101 Exam Questions With Verified Answers.

Protools 101 Exam Questions With Verified Answers. Pro Tools - answerA multi-track software-based digital recording and editing system Audio - answerSound, especially when recorded, transmitted or reproduced MIDI - answerMusical Instrument Digital Interface Mixing - answerThe process of blending all the individual tracks in a recording to create a version of the song that sounds as good as possible Post Production - answerWork done on a recording after a recording has taken place TDM - answerTime Division Multiplexing - routes multiple streams of digital audio data between system components Host-based audio processing - answerProcessing done on the computer's CPU without the need for additional DSP cards. Computer's processing ability. D-Control Work Surface - answerUp to 80 faders D-Command Work Surface - answerUp to 40 faders Sound - answerA variation in the air pressure around us. The result of changes caused by vibrations that create disturbances in the air or water around the source. Waveform - answerThe "shape" of the sound or the shape of the vibration that produced the sound Range of human hearing - answer20Hz to 20,000Hz Frequency - answerHow often the sound pressure variates. Measured in Hertz or CPS (cycles per second). Creates our perception of pitch. Measurement of the regularly repeating sine wave. Measured from peak to peak. The number of times a sound wave repeats itself in one second, moving from the midpoint of the waveform where the sound begins through the crest of the wave, where the pressure is greatest, through the midpoint again, to the trough of the wave, where the pressure is the lightest, and back to the midpoint. Amplitude - answerIntensity of the sound pressure variations. Creates our perception of the loudness of the sound. Measured in decibels (dB). The measurement of how far vibration of molecules of air travels; the distance traveled from the mid point. measured on the vertical plane of the sine wave. Translated as volume or loudness. Decibel - answerA logarithmic unit that is used to describe a ratio of sound pressure. Measure for amplitude. One-tenth of a Bel. (Alexander Graham Bell measurement) Threshold of hearing - answer0dB Threshold of pain - answer120dB Analog Audio - answerThe continuous electric signal produced by a microphone is an alternating current with a waveform, frequency and amplitude that directly corresponds to or is analogous to the original acoustic information. Analog-to-digital conversion (A/D Conversion) - answerThe process of translating electrical signals to binary data. Two essential factors: sample rate and bit depth Sampling - answerThe process of taking discrete measurements of an electrical signal at various moments in time. The Nyquist Theorem - answerIn order to produce an accurate representation of a given frequency of sound, each cycle of the sound's vibration must be sampled a minimum of two times. Sampling rate of at least 40kHz is required to capture full-frequency audio. Alias tones - answerThe false tones produced by low sample rates Standard sample rate of an audio CD - answer44.1kHz Quantization - answerThe process that captures the relative amplitude of a sample. Each sample's measurement is rounded to the closest available whole-number value. Bits - answerBinary digits (0s or 1s) used by computers to represent each sample measurement that is collected. Binary Word Length - answerThe number of bits used for each sample S/PIF - answerDigital connection that uses RCA jacks (coaxial jacks). Stands for Sony/Philips Digital Interface AES/EBU - answerDigital connection that uses XLR-type connectors. Stands for Audio Engineering Society/European Broadcast Union DSP - answerDigital signal processing DSP-accelerated system - answerComputer's processor is supplemented by additional processor chips with one or more connected HD-series audio interfaces