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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)： | 7/66頁 |
| 文件大?。?/td> | 441K |
| 代理商： | ZR38650 |
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7
ZR38650
Hall Effects/Music Modes
Short and long term delays and reverberation are added to mul-
tichannel PCM inputs with this function. Delay coefficients are
downloaded to simulate various acoustical environments
(concert halls, churches, stadiums, etc.)
Home THX5.1
This function, when used in a two-chip set connected in
cascade, provides the sound of the Lucasfilm theater THX in the
home listening environment. The input chips runs all of the
standard decoding functions and passes its PCM outputs to the
second chip for the THX5.1 processing which included full bass
management, decorrelation, timbre matching and re-equaliza-
tion and individually programmable channel delays.
Karaoke Processing
In addition to the Karaoke input mixing features of the standard
decode functions, this is true Karaoke processing with voice
cancellation, pitch shifting, voice echo and reverberation and
bass management. External data memory may be required for
this function.
Custom Functions, Etc.
The User function allows developers to easily add custom func-
tions using their own native ZR38001 code, yet retain the ease
of control of the command and response structure of the
ZR38650.
Operation and Set-Up Functions
The operation functions, summarized in Table 1, are the real-
time start and stop commands needed for system control once
the primary decoding function has been selected. Also included
are commands to get the input channel and decoding status to
monitor on-going operation. The PTC and STC time clocks can
also be monitored to insure audio and video synchronization.
The set-up functions configure both the hardware and software
before operation starts or as major operational changes are
made. Hardware configuration and initialization includes the
phase-locked loops (PLLs), system clocks and the input/output
(I/O). Software can be put in place through the host processor
from its I/O or memory system. It may be in the form of custom
commands and their parameters or directly executable native
code for the core DSP processor.
Table 3: SiliconSoftware Function Options Summary
SiliconSoftwareFunction
Input
Output
Serial Port A,
E or F, S/PDIF,
Parallel
Standard Function
Source
Function
Serial DAC
Ports
S/PDIF Port G
3-D Audio:
Aureal A3D
SA, S/P, P
AC-3, AC-3 + Pro Logic,
PCM + Pro Logic, MPEG,
MPEG + Pro Logic
2-Channel 3-D Audio
B
Input Stream
Dolby Virtual Surround
Harman VMAx
QSound QSurround
Spatializer N-2-2
SRS TruSurround
Bass Management
SA, S/P, P
All of the above
Redirect low frequencies
to different speakers
B, C, D
Input Stream
DVD
SA, P
All of the above + 8-
Channel PCM
Decoding, 3-D and bass
management
B, C, D, G
Input Stream
Unless 8-Ch.
PCM
Hall Effects/Music Modes
SA, S/P, P
PCM
Add room effects
B, C, D
Input Stream
Home
THX5.1
Decoding Chip
SA, S/P, P
AC-3, AC-3+Pro Logic,
PCM+Pro Logic, MPEG,
MPEG + Pro Logic
Two chip set decodes and
produces THX outputs
B, C, D
Input Stream
THX Processing Chip
SA, SE, SF
B, C, D
-
Karaoke Processing
S/P & SF or SA
& SF
AC-3, PCM, MPEG
Voice cancellation, pitch
shifting, echo and rever-
beration and bass
management.
B, C, D
Input Stream
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