User's Manual

6.7 Elec
t
rical Charac
t
eristics of
t
he Voiceband Par
t

PCS3_HD_v01.000
Confidential / Preliminary
Page 75 of 101 2013-10-21
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PCS3 Hardware Interface Description
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6.7.3 Characteristics of Audio Modes
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The electrical characteristics of the voiceband part depend on the current audio mode set with AT command. All values are noted for default gains, e.g.
the default parameters are left unchanged.
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Table 25: Voiceband characteristics
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Audio mode no.
AT^SNFS=
1
1
2 3 4 5 6
Name Default Handset Router User Handset Headset Speaker phone Transparent
Purpose
DSB with
Votronic handset
Analog phone
interface
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Mono Headset
Handheld
speakerphone
Direct access
to speech
coder
TX-Filters Adjusted Flat Adjusted Flat Flat Flat
RX-Filters
Adjusted to fit
artificial ear type
3.2 low leakage
Flat Adjusted to fit
artificial ear type
3.2 low
leakage
800Hz 800Hz Flat
Default SNFI Parameters
<micAmp1>
<txVol>
0 (0dB)
0x23FD (-5dB)
0 (0dB)
0x4000 (0dB)
0 (0dB)
0x23FD (-5dB)
1 (24dB)
0x4000 (0dB)
1 (24dB)
0xB461(9dB)
0 (0dB)
0x4000 (0dB)
Default SNFO Parameters
<cdcRxGain>
<rxVol>
<stGain>
0x2861 (-4dB)
33 (0dB)
0x261F (-16.5dB)
0x2000 (-6dB)
33 (0dB)
0x0000 (mute)
0x2861 (-4dB)
33 (0dB)
0x261F (-16.5dB)
0x2000 (-6dB)
33 (0dB)
0x1000 (-24dB)
0x6570 (4dB)
33 (0dB)
0x0000 (mute)
0x4000 (0dB)
33 (0dB)
0x0000 (mute)
Echo canceller mode
VOC_EC_ESEC VOC_EC_ESEC VOC_EC_ESEC VOC_EC_HEADSET VOC_EC_SPEAKER VOC_EC_OFF
Noise Supersession
VOC_NS_ON VOC_NS_OFF VOC_NS_ON VOC_NS_ON VOC_NS_ON VOC_NS_FF
Tx codec gain
0x4000 (0dB) 0x4000 (0dB) 0x4000 (0dB) 0x4000 (0dB) 0x4000 (0dB) 0x4000 (0dB)