Definitions And Abbreviations - DCS Elgar Plus User Manual

dCS Elgar Plus User Manual
dCS Ltd

Definitions and Abbreviations

Manual filename: Elgar Manual v4.4x.doc
English version
Analogue to Digital Converter, sometimes referred
ADC
to as an A/D Converter.
A standard professional stereo digital audio format
AES3
consisting of one serial PCM data line. It uses a
balanced cable to extend transmission distance
and includes a comprehensive messaging system.
Digital to Analogue Converter, sometimes referred
DAC
to as a D/A Converter.
A relative signal level or ratio in decibels. The
dB
context may indicate the reference level.
Level in decibels, referred to a full scale sine wave
dB0
in a sampled system. So, 0dB0 is full scale.
A signal level relative to 0.775V rms, making no
dBu
allowance for external loading.
Digital to Digital Converter, sometimes referred to
DDC
as a D/D Converter.
Direct Stream Digital - a single bit digital audio
DSD
format, sampled at 2.822MS/s.
Sample rate in kilo-samples per second. This
kS/s
replaces kHz, which is technically incorrect when
referring to sample rates.
Sony Digital InterFace – a stereo digital audio
SDIF-2
format consisting of 2 serial PCM or DSD data
lines. Usually used with a Word Clock.
Sony / Philips Digital InterFace – a stereo digital
SPDIF
audio format for consumer equipment, consisting
of one serial PCM data line. Similar to AES3, but
unbalanced and with different messaging.
A synchronisation signal consisting of a square-
Word Clock
wave, the frequency of which is the sample rate.
Usually transmitted through co-axial cable and
BNC connectors.
Page 73
Manual for Software Issue 4.3x
August 2005
email: more@dcsltd.co.uk
web-site: www.dcsltd.co.uk