參數(shù)資料
型號(hào)： ZR38650
廠商： Electronic Theatre Controls, Inc.
英文描述： PROGRAMMABLE DIGITAL AUDIO PROCESSOR
中文描述： 可編程數(shù)字音頻處理器
文件頁數(shù)： 14/66頁
文件大?。?/td> 441K
代理商： ZR38650
14
ZR38650
Function Commands
AC-3 Decoder + Pro Logic Function
AC3
The AC-3 Decoder function includes normal six-channel AC-3
and the two-channel AC-3 with Pro Logic output. Selection is
made in the command for speaker configuration, dynamic range
compression, downmixing, delays and error concealment
strategy.
PCM + Pro Logic Decoder Function
PCMPROL
The PCM or Pro Logic Decoder function decodes two-channel
PCM into four-channel Pro Logic output or transfers to two-
channel PCM output. Selection is made in the command for
speaker configuration, scale factor, mixing and delay. The
parameter descriptions are the same as for the AC3 command
except for OCFG and with the addition of DE.
PRLG
Pro Logic
output: 0 = Off, 1 = On, 2 = Selected auto-
matically based on input stream information.
SIF
Serial Input Format
: 0 = Non-formatted, 1 = AC-3
S/PDIF protocol.
COMP
Compression
and Dialog Normalization: 0 = Custom
mode 0, 1 = Custom mode 1, 2 = Line mode (dialog nor-
malization plus high level compression), 3 = RF
modulation mode (peak level compression).
DMM
Dual Mono Mode
output selection when the two input
channels are unrelated: 0 = Stereo, 1 = Mono channel
0 to both, 2 = Mono channel 1 to both, 3 = Mono
channels 0 and 1 summed and scaled to both.
SF
Surround Filter
for Pro Logic: 0 = Filter enabled,
1 = Filter (LP+NR) disabled.
AB
Auto-Balance
for Pro Logic output: 0 = On, 1 = Off.
BCFG
Bass Redirection Configuration
: 0 = No redirection,
1 = Redirect left, center, right to subwoofer for Pro-logic.
All channels to subwoofer for AC-3, 2 = Redirect center
to subwoofer for Pro-logic. Center, left surround and
right surround to subwoofer for AC-3, 3 = Reserved.
SW
Subwoofer
output channel: 0 = Off, 1 = On.
OCFG
Output Speaker Configuration
of Front/Surround
number of speakers (for Pro Logic only OCFG 3-7 can
be used): 0 = 2/0 Surround Compatible, 1 = 1/0, 2 = 2/0
Normal, 3 = 3/0, 4 = 2/1, 5 = 3/1, 6 = 2/2, 7 = 3/2. In 2/0
configurations, a mono input is directed to both output
channels.
CDLY
Center Delay
in one millisecond steps from zero to five.
SRDLY
Surround Delay:
0-15 = 0-15 ms for AC-3,15-30 ms for
Pro Logic in one millisecond steps beyond 15 ms.
16 = zero delay for 3-D Sound.
0
1
2
3
4
5
6
7
1
0
1
0
0
0
0
1
DMM
COMP
0
SIF
PRLG
OCFG
SW
BCFG
AB
SF
SRDLY
CDLY
HDYNRNG
LDYNRNG
DSN
PCMSFH
RPC
PCMSFL
0
KAR
Parameter 4
Parameter 5
Parameter 6
Parameter 7
Parameter 8
Parameter 3
Parameter 1
Parameter 2
Command
HDYNRNG
High Dynamic Range
scale factor controlling the depth
of high-level compression. A two’s complement fraction
between 0.00 and 0.FE where 00 is no high-level com-
pression and 7F is full compression.
LDYNRNG
Low Dynamic Range
scale factor controlling the depth
of low-level compression. A two’s complement fraction
between 0.00 and 0.FE where 00 is no low-level com-
pression and 7F is full compression.
DSN
Data Stream Number
for S/PDIF input. Selects which
stream to decode. Range 0 -7. Normally zero.
KAR
Karaoke
mode: 0 = Disabled, 1 = Enabled.
RPC
Repeat Count
before muting. Maximum number of
consecutive block repeats before muting output.
PCMSFH
PCM Scale Factor High
. Output scale factor, 16-bit
two’s complement fraction between 0.0000 and 0.
FFFE. The high byte. 0000 equals zero, 7FFF equals
gain of one.
PCMSFL
PCM Scale Factor Low
. Output scale factor low byte.
DE
De-Emphasis filter:
0 = Filter is disabled, 1 = Filter is
enabled, 2 = Filter is enabled if pre-emphasis is defined
in the channel status of the S/PDIF input stream.
OCFG
Output Speaker Configuration
of Front/Surround
number of speakers (for Pro Logic only OCFG 3-7 can be
used): 0-2 = PCM, 3 = 3/0, 4 = 2/1, 5 = 3/1, 6 = 2/2,
7 = 3/2.
0
1
2
3
4
5
6
7
0
1
1
0
0
0
0
1
DMM
DE
0
OCFG
SW
BCFG
AB
SF
SRDLY
CDLY
0
0
PCMSFH
PCMSFL
0
Parameter 4
Parameter 5
Parameter 6
Parameter 7
Parameter 8
Parameter 3
Parameter 1
Parameter 2
Command
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