Version: 1.18
PRELIMINARY/CONFIDENTIAL
TrueSpeech® Co-Processor
9.21.3
Set Speakerphone Parameters Command
This command may be used in DSVD Speakerphone Mode.
1110
001
Line Volume
(8-7)
Speaker Volume
(6-3)
Loop Attenuation
(2-0)
(15-12)
(11-9)
Status:
1110
001
Line Volume
(8-7)
Speaker Volume
(6-3)
Loop Attenuation
(2-0)
(15-12)
(11-9)
Line Volume:
This controls the volume transmitted to the telephone line.
00
01
10
11
+8 dB
+4 dB
+0 dB (normal setting)
Mute Microphone
Speaker Volume:
This controls the volume to the speakerphone loudspeaker.
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
+14 dB
+12 dB
+10 dB
+8 dB
+6 dB
+4 dB
+2 dB
0 dB (normal setting)
-2 dB
-4 dB
-6 dB
-8 dB
-10 dB
-12 dB
-14 dB
Speaker Mute
Loop Attenuation:
Total attenuation used by receive and transmit attenuators.
Full Duplex Operation
000
001
010
0 dB
-4 dB
-8 dB
Half Duplex Operation
011
100
101
-12 dB
-16 dB (startup condition)
-20 dB
Abnormal Conditions
110
111
-24 dB
-28 dB
CT8022A11AQC FW Revision 0118 DSP GROUP, INC., 3120 SCOTT BOULEVARD
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
143
All specifications are subject to change without prior notice.