2-26
INSTALLATION
ORBAN MODEL 6300
D)
Set the
DO1
R
ATE
to 32, 44.1, 48, 88.2, or 96 kHz.
If you are using
I
NTERNAL
sync [step (E) below], 48 kHz or 96 kHz are pre-
ferred because their samples are synchronous with the peak-controlled
samples in the processing. If you are using external sync, this special rela-
tionship no longer holds.
Selecting a 32 kHz output sample rate will automatically set the highest
available audio bandwidth to 15 kHz.
DO
R
ATE
will also affect the available range of test tone frequencies. When
DO
R
ATE
is set to 32 kHz, the highest tone frequency setting is 15
kHz. When
DO
R
ATE
is set to 44.1 or above, the tone frequency range extends to 20 kHz.
E)
Set the
DO1
S
YNC
. Choose:
I
NTERNAL
(the output sample rate is synchronized to the 6300’s internal crys-
tal-controlled clock),
I
NPUT
(the output sample rate is synchronized to the sample rate appearing
at the 6300’s AES3 input), or
E
XTERNAL
(the output sample rate is synchronized to the sample rate ap-
pearing at the 6300’s BNC sync input when an AES11 signal or a wordclock
drives it). (See step (A) above.)
F)
Press
N
EXT
. Then set the desired output DO1
W
ORD
(word length).
[14], [16], [18], [20], or [24], in bits
The largest valid word length in the 6300 is 24 bits
The 6300 can also truncate its output word length to 20, 18, 16 or 14 bits.
The 6300 can add dither (see the next step).
G)
Adjust
DO1
D
ITH
(dither) to
I
N
or
O
UT
, as desired.
[In] or [Out]
When set to In, the 6300 adds “high-pass” dither before any truncation
of the output word. The amount of dither automatically tracks the set-
ting of the
W
ORD
L
EN
control. This first-order noise shaped dither consid-
erably reduces added noise in the midrange by comparison to white PDF
dither. However, unlike extreme noise shaping, it adds a maximum of 3
dB of excess total noise power when compared to white PDF dither. Thus,
it is a good compromise between white PDF dither and extreme noise
shaping.
To ensure maximum system linearity, it is wise to set this control to
I
N
.
H)
Set
DO1
F
RMT
to AES or SPDIF
I)
Using the
DO1
S
OURCE
button, set the digital 1 output source to:
AGC
(stereo enhancement, equalization, and AGC without peak limiting)
AGC+LIM
(stereo enhancement, equalization, AGC, and look-ahead peak
limiting)
Содержание OPTIMOD 6300
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