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參數(shù)資料
| 型號： | MSP3430 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Multistandard Sound Processor Family |
| 中文描述： | 多標(biāo)準(zhǔn)聲音處理器系列 |
| 文件頁數(shù)： | 13/101頁 |
| 文件大?。?/td> | 752K |
| 代理商： | MSP3430 |
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PRELIMINARY DATA SHEET
MSP 34x0G
Micronas
13
2.5.5. Micronas Dynamic Bass (MDB)
The
M
icronas
D
ynamic
B
ass system (MDB) extends
the frequency range of loudspeakers or headphones.
After the adaption of MDB to the loudspeakers and the
cabinet, further customizing of MDB allows individual
fine tuning of the sound.
The MDB is placed in the subwoofer path. For applica-
tions without a subwoofer, the enhanced bass signal
can be added back onto the Left/Right channels (see
Fig. 2
–
1 on page 8). Micronas Dynamic Bass com-
bines two effects: dynamic amplification and adding
harmonics.
2.5.5.1. Dynamic Amplification
Low frequency signals can be boosted while the output
signal amplitude is measured. If the amplitude comes
close to a definable limit, the gain is reduced automati-
cally in dynamic Volume mode. Therefore, the system
adapts to the signal amplitude which is really present
at the output of the MSP device. Clipping effects are
avoided.
Fig. 2
–
5:
Dynamic amplification
2.5.5.2. Adding Harmonics
MDB exploits the psychoacoustic phenomenon of the
‘
missing fundamental
’
. Adding harmonics of the fre-
quency components below the cutoff frequency gives
the impression of actually hearing the low frequency
fundamental. In other words: The listener has the
impression that a loudspeaker system seems to repro-
duce frequencies althoug physically not possible.
Fig. 2
–
6:
Adding harmonics
2.5.5.3. MDB Parameters
Several parameters allow tuning the characteristics of
MDB according to the TV loudspeaker, the cabinet,
and personal preferences (see Table 3
–
11). For more
detailed information on how to set up MDB, please
refer to the corresponding application note on the
Micronas homepage.
2.6. SCART Signal Routing
2.6.1. SCART DSP In and SCART Out Select
The SCART DSP Input Select and SCART Output
Select blocks include full matrix switching facilities. To
design a TV set with four pairs of SCART-inputs and
two pairs of SCART-outputs, no external switching
hardware is required. The switches are controlled by
the ACB user register (see page 39).
2.6.2. Stand-by Mode
If the MSP 34x0G is switched off by first pulling
STANDBYQ low and then (after >1
μ
s delay) switching
off DVSUP and AVSUP, but keeping AHVSUP
(
‘
Stand-by
’
-mode
), the SCART switches maintain
their position and function. This allows the copying
from SCART-input to SCART-output in the TV set
’
s
stand-by mode.
In case of power on or starting from stand-by (switch-
ing on the DVSUP and AVSUP, RESETQ going high
2 ms later), all internal registers except the ACB regis-
ter (see page 39) are reset to the default configuration
(see Table 3
–
5 on page 18). The reset position of the
ACB register becomes active after the first I
2
C trans-
mission into the Baseband Processing part. By trans-
mitting the ACB register first, the reset state can be
redefined.
Frequency
MDB_LIMIT
MDB_HP
MDB_LP
S
A
SUBW_FREQ
(
Frequency
MDB_HP
A
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PDF描述 |
|---|---|
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSP3430G-A4 | 制造商:Micronas 功能描述: |
| MSP3430G-QA-A4 | 制造商:MICR 功能描述:3430G-QA-A4 |
| MSP3431G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family with Virtual Dolby Surround |
| MSP3435G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MSP 34x5G Multistandard Sound Processor Family |
| MSP3438G | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Multistandard Sound Processor Family |
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