Midterm Flashcards
(21 cards)
digital audio is a process by which numeric representations of analog signals(in the form of voltage levels) are encoded, processed, stored, and reproduced over time through the use of what kind of system?
a binary number system
sampling rate
amount of measurements that are periodically taken over the course of a second
common sampling rates
44.1 kHz, 48 kHz, 96 kHz, 192 kHz(x axis)
Bit depth
number of possible amplitude values you can record for each sample(y axis)
common bit-depths
16-bit, 24-bit, 32-bit float
Nyquist Theorem
in order for the desired frequency bandwidth to be faithfully encoded in the digital domain, the selected sample rate must be at least twice the highest frequency
DAW(Digital Audio Workstation)
integrated computer-based hard-disk recording system that commonly offers a wide and ever-changing number of production features
common sampling rates
44.1 kHz, 48 kHz, 96 kHz, 192 kHz
bit depth
number of possible amplitude values you can record for one sample
common bit depths
16-bit, 24-bit, 32-bit float
Nyquist Theorem
in order for the desired frequency bandwidth to be faithfully encoded in the digital domain, the selected sample rate must be at least twice as high as the highest frequency
DAW(Digital Audio Workstation)
an integrated computer-based hard-disk recording system that commonly offers a wide and ever-changing number of production features
common characteristics of DAWs
Integration
Communication
Speed and Flexibility
Automation
Expandability
User friendly operation
common protocols used to connect computers to hardware devices such as mice, keyboards, soundcards, modems, and MIDI interfaces?
USB
FireWire
Thunderbolt
Ethernet
audio interface
connectivity bridge between the outside world of analog audio and the computer’s inner world of digital audio
latency
build-up in delays(by ms) in audio signals as they pass through the audio circuitry of the interface, CPU, internal mixing structure, and I/O routing chains
Buffer size
the amount of time allowed for your computer to process audio of you sound card or audio interface
general rules for buffer settings in a DAW
when recording, set the buffer size as low as you can to reduce latency. When mixing, set the buffer size as high as you can to reduce chances of any clicks or pops being heard when you add effects plug-ins and to avoid CPU overload errors
features of a DAW controller
mimic the design of an audio mixer in that they offer slide or rotary gain faders, panning dials, solo/mute, and channel select buttons. They will often include software function keys that can be programmed to give quick and easy access to to the DAW’s more commonly used program keys
