[AK4679]
D0
Addr Register Name
70H DRC Mode Control
R/W
D7
0
R
0
D6
DLMAT2
R/W
D5
D4
D3
D2
D1
DRGAIN1 DRGAIN0
DLMAT1 DLMAT0
R/W
0
DRCC1 DRCC0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Default
0
DRCC1-0: DRC Enable (Table 65)
00: Disable (default)
01: Low
10: Middle
11: High
When DRCC1-0 bits are “00”, DRC is through (0dB).
DRGAIN1-0: DRC Recovery Speed Setting (Table 67)
Default: “00”
DLMAT2-0: DRC ATT Speed Setting (Table 66)
Default: “000”
Addr Register Name
71H NS Control
R/W
D7
0
R
0
D6
0
R
0
D5
DRCM1
R/W
0
D4
DRCM0
R/W
0
D3
0
R
0
D2
NSLPF
R/W
0
D1
NSHPF
R/W
0
D0
NSCE
R/W
0
Default
NSCE: Noise Suppression Enable
0: Disable (default)
1: Enable
When NSCE bit is “0”, Noise Suppression is through (0dB).
NSHPF: HPF for Noise Suppression Coefficient Setting Enable
0: Disable (default)
1: Enable
When NSHPF bit is “1”, the settings of NSHA13-0 and NSHB13-0 bits are enabled. When NSHPF bit is “0”,
HPF block is through (0dB).
NSLPF: LPF for Noise Suppression Coefficient Setting Enable
0: Disable (default)
1: Enable
When NSLPF bit is “1”, the settings of NSLA13-0 and NSLB13-0 bits are enabled. When NSLPF bit is “0”,
LPF block is through (0dB).
DRCM1-0: DRC Input Signal Setting (Table 41)
Default: “00” (L = Lch, R = Rch)
Addr Register Name
72H NS Gain & ATT Control
D7
0
D6
NSGAIN2
D5
NSGAIN1
D4
NSGAIN0
D3
0
D2
D1
D0
NSATT2 NSATT1 NSATT0
R/W
Default
R
0
R/W
0
R/W
0
R/W
1
R
0
R/W
0
R/W
0
R/W
1
NSATT2-0: Noise Suppression ATT Speed Setting (Table 45)
Default: “001”
NSGAIN2-0: Noise Suppression Recovery Speed Setting (Table 48)
Default: “001”
MS1402-E-06
2013/02
- 178 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
