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Basically, AC97 CODEC is the standard structure of PCI sound card. As we know, computer
analog-based. Therefore, there must be a process to turn digital into analog during the
Hence, the component on sound card that play this important task is what we called CODEC.
Audio CODEC 97 (briefly called AC97) is the sp
special place about CODEC is that it is sepa
could possess with 90db and do other applicatio
A
C
P
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ACPI is the power management specification of PC97 (1997). It intends to save more
management to operating system and by ass
o
perating system (such as Windows 98). This is a bit similar as the
s
witch to control the power state transition.
A
A
C
C
R
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B
uild
ing on the PC motherboard riser architecture,
A
CR specification is designed to support modem, audio, Local Area Network (LAN) and Digital Subscriber Line (DSL).
M
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ecification regulated by Intel,
rated from sound card (CODEC is a
n process as well. We called C
a
t
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n
&
P
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&
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)
p
BIOS
. The chipset or super I/O chip needs to provide standard register interface to
i
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)
)
ACR slot is backward compatible with AMR but beyond the limitation of it. The
last stage processing of sound in compu
and it'
s about the structure of audio conversion. The
n in
dependent chipset). Therefore, PCI sound card
ODEC
that meets this structure AC97 CODEC.
PnP
register interface. ACPI defines ATX momentary soft power
79
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a
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is digital-based, but music is based on
power by taking full control of powe
u
a
l
u
a
l
ter.
r
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