Theta Digital Casablanca IV Owner'S Manual Download

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Glossary of Terms and Abbreviations

TERM

DEFINITION

AES/EBU (Audio Engineering Society) / (European
Broadcasters Union)

A three wire balanced digital audio standard. This interface uses a 3-pin
XLR connector and allows for data communication between digital audio
equipment.

Analog-to-Digital Converter

A device that converts analog signals into a digital format. Once encoded,
all audio is stored or processed as a series of numbers rather than as the
audio itself.

Balanced Audio Signals

Signals that are carried on three-conductor cables (AES/EBU), with two of
the conductors carrying the same signal 180° out of phase and the third
as ground. Balanced connections usually cost more than unbalanced
connections, but are less susceptible to picking up hum and prevent
interference with low-level signals.

Decibel, a relative unit of loudness.

Dirac Live®

Digital room correction and optimization software developed by Dirac SE
in Sweden. Dirac uses mixed-phase IIR and FIR digital filters to correct
frequency and phase errors in music reproduction systems.

Dolby 3 Stereo

The Dolby 3 Stereo mode reproduces sound using only the 3 front
channels, and is intended to be used either before surround speakers are
installed, or for programs that might benefit from deriving a center channel
output, but where the quality of the surround output is unsatisfactory.

Digital-to-Analog Converter

A device that converts digital signals into an analog format.

Hz (Hertz)

A unit of frequency.

Infrared. A method of wireless transmission of data.

Jitter Jail II™

A technology proprietary to Theta Digital that corrects errors in signal
timing that would otherwise cause signal distortion.

LFE

Low Frequency Effect. Commonly a discrete audio track designated for a
subwoofer.

Millisecond, or 1\1000 of a second.

Oversampling

The process of creating more sample points in order to more accurately
reconstruct a digitized signal for playback in the analog domain.

Phantom Center Mode

Redirects the center channel signal equally to the front left and right
outputs, thus creating the illusion of a center speaker. This mode is
intended for use when no center speaker is present.

Phantom Surround Mode

Intended for use when no surround speakers are present in the system.
The surround information is added to the front channels. If the current
mode is Dolby Pro Logic, the Casablanca IV will automatically decode in
Dolby 3 Stereo.

Sampling Rate

The rate at which an analog (real world) signal is converted into digital
numeric values.

S/PDIF Interface (Sony/Phillips Digital Interface
format)

A digital audio interconnection standard, developed jointly by Sony and
Phillips.

TRS

Tip, Ring, Sleeve. Names of the 3 connecting elements of a stereo phono
jack or plug.

Unbalanced Audio Signals (AKA single-ended)

Signals that are carried on two-conductor cables, one “hot”, or signal, and
one ground.

Xover

Abbreviation for the word ‘Crossover’.

Table 1 - Glossary of Terms and Abbreviations