DCS 1.0x ユーザーズマニュアル
dCS Verona User Manual
Manual for Software Issue 1.0x
dCS Ltd
September 2004
Manual filename: Verona Manual v1.0x.doc
Page 40
email: more@dcsltd.co.uk
English version
web-site: www.dcsltd.co.uk
I
NDEXES AND
S
OFTWARE
V
ERSION
N
UMBERS
Software History
This manual is for Verona software version 1.0x.
Definitions and Abbreviations
ADC
Analogue to Digital Converter, sometimes referred
to as an A/D Converter.
to as an A/D Converter.
AES3
A standard professional stereo digital audio format
consisting of one serial PCM data line. It uses a
balanced cable to extend transmission distance
and includes a comprehensive messaging system.
consisting of one serial PCM data line. It uses a
balanced cable to extend transmission distance
and includes a comprehensive messaging system.
DAC
Digital to Analogue Converter, sometimes referred
to as a D/A Converter.
to as a D/A Converter.
dB
A relative signal level or ratio in decibels. The
context may indicate the reference level.
context may indicate the reference level.
dB0
Level in decibels, referred to a full scale sine wave
in a sampled system. So, 0dB0 is full scale.
in a sampled system. So, 0dB0 is full scale.
dBu
A signal level relative to 0.775V rms, making no
allowance for external loading.
allowance for external loading.
DDC
Digital to Digital Converter, sometimes referred to
as a D/D Converter.
as a D/D Converter.
DSD
Direct Stream Digital - a single bit digital audio
format, sampled at 2.822MS/s.
format, sampled at 2.822MS/s.
kS/s
Sample rate in kilo-samples per second. This
replaces kHz, which is technically incorrect when
referring to sample rates.
replaces kHz, which is technically incorrect when
referring to sample rates.
SDIF-2
Sony Digital InterFace – a stereo digital audio
format consisting of 2 serial PCM or DSD data
lines. Usually used with a Word Clock.
format consisting of 2 serial PCM or DSD data
lines. Usually used with a Word Clock.
SPDIF
Sony / Philips Digital InterFace – a stereo digital
audio format for consumer equipment, consisting
of one serial PCM data line. Similar to AES3, but
unbalanced and with different messaging.
audio format for consumer equipment, consisting
of one serial PCM data line. Similar to AES3, but
unbalanced and with different messaging.
Word Clock
A synchronisation signal consisting of a square-
wave, the frequency of which is the sample rate.
Usually transmitted through co-axial cable and
BNC connectors.
wave, the frequency of which is the sample rate.
Usually transmitted through co-axial cable and
BNC connectors.