What are the main differences between analog and digital audio? |
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Analog – Smooth, Continuous, variation in Air Pressure.
Digital – Discrete measurements of air pressure (Must deal with numbers). |
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How do we define Sample Rate? Quantization? |
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Sample Rate – Number of Amplitude “snapshots” per second.
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Quantization – The measurements of amplitude. |
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What is quantization error? |
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Distortion caused by rounding an amplitude. |
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What amplitudes is Quantization error most significant? |
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16-bit resolution has how many quantization intervals? |
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65,536 (2 to the 16th power) |
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What is the theoretical dynamic range of 24-bit audio? 20-bit? |
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16 = 96dB 20 = 120dB 24 = 144dB |
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What is the maximum digital level called? What is another name? |
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Are there any recorded numbers above 0dBfs? |
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What are the advantages to recording at a higher bit depth? |
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-Greater Dynamic Range -Greater Effective resolution |
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What is Dither? Does it counteract QE? |
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Adds low-level noise to signal to counteract Quantization Error. |
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To record a 10k tone digitally, the sample rate must be…? |
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At the Nyquist frequency there are how many samples per second? |
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When is the anti-aliasing filter accepted? |
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-Input -Anti-Imaging filter on output |
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With Storage calculation, how do we determine bits per second? |
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What is a voice? Do Inactive tracks use voices? |
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-An audio event OR a pathway to or from storage. -No |
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Do Pro Tools’ faders change levels recorded to the hard drive? |
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Which monitoring mode monitors playback until you record? |
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Pro Tools LE supports ____ number of Voices? |
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Monitoring latency is the delay between ____ and _____? |
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Destructive recording can ‘extend’ whole-file regions? T or F |
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Quick Punch record uses how many voices on a mono track? |
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2 voices in Mono, 4 in Stereo |
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How long does a selection have to be to Loop Record? |
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What modifier key allows you to view all loop recorded takes? |
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Can offline regions still be edited? Processed? |
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What would be the minimum length of a fade? |
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What 3 options are available when linking fades? |
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Equal power, equal gain, none |
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20-bit = _______ Quantization Intervals |
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Time Division Multiplexing |
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Routes a copy of signal to output or Bus. |
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Redirects signal to a plug-in or I/O. (Entire signal is processed) |
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A copy of the audio is sent before being affected by the track fader or pan. |
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A copy of the audio is sent after passing through the track fader. |
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What is a plug-in? Where can they be placed? |
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-An application within an application. -Inserts |
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Can a track’s format be changed after it’s created? Output format? |
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– Track format CANNOT be changed, Output format, CAN be changed |
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Do AUX Tracks and Master Faders handle audio? |
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Yes, They do NOT have audio on them. |
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How much of the signal does an insert affect? |
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Why is Cue Mix routing different than routing to an internal effect? |
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Output feeds the cue box (Which ordinarily uses pre-fader send) |
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What is the Target button within a plug-in? |
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The anchor button, used to view multiple windows at once. |
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How are plug-ins moved and copied? |
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Apple (Command) + drag to move Option + Drag to copy |
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