Surround Sound Cycle 6+7 Flashcards
Dolby 5.1 channel assignment order
left, center, right, left surround, right surround, LFE
what does LFE stand for
LOW FREQUENCY EFFECT
SMPTE/ITU channel assingment order
left, right, center, LFE, left surround, right surround
the LEAST amount of speakers you can have in a surround system is…
5
LCRS is a playback format that has how many channels?
4
how is surround sound formatted with LCRS?
there is a single mono surround channel that is commonly sent to multiple speakers
what is THX and what does it stand for?
it is a calibration standard for theatre. its a certification/licensing company. it stands for Tom Holman Experiment
Anything that normally lives in the Stereo Field (L + R) will arrive in ___________ in surround
L, R, Left Surround, Right Surround
the _________ is the bass manager in the s6 room
Intonato
The bass manager is both a ______ and a ______
crossover and a summing amp
Binaural Phase Cancellation allows the software to
take a 5.1 or 10.1 (surround) mix and convert it into only 2 channels while maintaining the surround sound image. This is accomplished with phase cancellation techniques.
Phantom Center means…
equal signal in left and right channels. no TRUE center speaker.
in a surround mix, phantom center becomes…
TRUE center
THX and Dolby Atmos has _____ as their crossover point
80 Hz
What are examples of DELIVERY formats?
DVD, Blu-Ray, Mp3
What is something that is defined as having distinct or separate parts?
Discreet
what is up mixing?
the process of taking a stereo mix format and creating an artificial surround sound field from it
who created THX?
George Lukas
LCRS was created for…
Film
a tri-pole speaker is..
a speaker that has drivers on the the front as well as on both sides, forcing sound out in three directions
What are immersive speakers?
Immersive speakers are either speakers placed directly above the listening position such as in Dolby Atmos, or placed in upper channel above the traditional left and right channels.
What is the difference between an LFE and a subwoofer?
An LFE (which stands for Low-Frequency Effect) refers to the CHANNEL that supplies the low-frequency audio. The subwoofer is the piece of HARDWARE (speaker) that actually emanates sound.
Describe “Matrixing”
surround sound is packaged into two channels. these channels can be played in stereo (and sound perfectly normal) but when played through specialized equipment, the sound is expanded back into its original multichannel formal
Blu-Ray has the ability to deliver ____ channels of _________ audio at ___ kHz
8, uncompressed, 96
name the channels in quadrophonic
left, right, left surround, right surround
combining multiple channels of audio into a single channel is called
multiplexing
give examples of PLAYBACK formats
5.0, 5.1, 7.1, 2.0 (stereo)
this four channel playback system has four channels, but unlike quadrophonic, is still widely used.
LCRS
channel configuration for LCRS
left, center, right, surround (single mono surround channel)
describe 5.0 surround
there is left, center, right, left surround, and right surround. there is no LFE
describe 5.1 surround
there is left, center, right, left surround, right surround AND an LFE channel
difference between 5.1 and 6.1 surround?
there is a center surround speaker directly behind the listener.
for 7.1, where are the two additional speakers placed?
not entirely clear. for some a left-center and right-center are added, for others, a left-back and right-back surround are added, etc.
SMPTE/ITU assignment order
L, R, C, LFE, Ls, Rs
DTS assignment order
L, R, Ls, Rs, C, LFE
what is down-mixing?
Checking a multichannel mix in a playback format with fewer channels.
what is divergence?
A control commonly found on surround sound panners that limits to what extremity the pan moves are perceived
Inputs that can accept sound beyond stereo are commonly referred to as what?
Wide inputs
what is up-mixing?
A process of taking a stereo mix format and creating an artificial surround sound field from it.
what are immersive speakers?
speakers that are placed directly overhead, or in general, give the listener a sense of vertical positioning
what are tri-pole speakers?
speakers that have drivers on the front as well as on both sides, forcing out sound in 3 different directions
