CALL:RTVocoder

CALL:RTVocoder

Last updated: January 14, 2010

This topic is only applicable to the lab application.

GPIB Command Conventions

CALL:RTVocoder:CALibration:TYPE

Function

Queries the vocoder calibration type. See Calibration Type .

Setting

AOPath | AIPath | ICODec

Query AOP | AIP | ICOD
*RST Setting AOPath
Requirement Lab Application Revision: F.00.19 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:CALibration:TYPE AOP"
!Set the vocoder calibration type to Audio Out Path.

CALL:RTVocoder:DECoder:HEADroom[:SELected]?

CALL:RTVocoder:DECoder:HEADroom:WCDMa?

Function

Queries the headroom of the decoded data samples to the full scale of the DAC (Digital to Analog Converter). See Real-Time Vocoder Headroom Information .

Query

Range: 0.0 to 100 dB, 9.91E+37 (NAN)

Resolution: 0.1 dB

*RST Setting 9.91E+37 (NAN)

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:DECoder:HEADroom?"
!Queries decoder headroom. 

CALL:RTVocoder:ENCoder:HEADroom[:SELected]?

CALL:RTVocoder:ENCoder:HEADroom:WCDMa?

Function

Queries the headroom of the audio samples to the full scale of the ADC (Analog to Digital Converter). See Real-Time Vocoder Headroom Information .

Query

Range: 0.0 to 100 dB, 9.91E+37 (NAN)

Resolution: 0.1 dB

*RST Setting 9.91E+37 (NAN)

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:ENCoder:HEADroom?"
!Queries encoder headroom. 

CALL:RTVocoder:INPut:VOLTage[:EXPected][:SELected]

CALL:RTVocoder:INPut:VOLTage[:EXPected]:WCDMa

Function

Sets/queries the peak voltage of the analog audio signal that is applied at the test set's AUDIO IN connector. The units (V|mV) are optional. If no units are specified, then units default to V. See Real-Time Vocoder Headroom Information .

Setting

Range: 0.001 to 2.0 V

Resolution: 1 mV

Query

Range: 0.001 to 2.0 V

Resolution: 1 mV

*RST Setting 2.0 V

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:INPut:VOLTage 350mV"
!Sets the peak level of Audio In signal to 350 mV. 

CALL:RTVocoder:OPERating:MODE

Function

Sets/queries the vocoder operating mode. See Operating Mode .

Setting Range: NORMal | CALibration
Query Range: NORM | CAL
*RST Setting NORMal
Requirement Lab Application Revision: F.00.19 and above.

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:OPER:MODE NORM"
!Sets the vocoder operating mode to Normal.

CALL:RTVocoder:OUTPut:FREQuency

Function

Sets the vocoder Audio Out Frequency, see Audio Out Frequency .

Setting

Range: 300 Hz to 1100 Hz

Resolution: 1.0 Hz

Query

same as setting

*RST Setting

1000Hz
Requirement Test Application Revision: F.00.19 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:OUTPut:FREQuency 1000Hz"
!Sets the vocoder Audio Out Frequency to 1000Hz.

CALL:RTVocoder:OUTPut:VOLTage[:MAXimum][:SELected]

CALL:RTVocoder:OUTPut:VOLTage[:MAXimum]:WCDMa

Function

Sets/queries the maximum audio peak output level that is produced on the test set's AUDIO OUT connector according to the voice data received on the R-Traffic/R-FCH channel. The units (V|mV) are optional. If no units are specified, then units default to V. See Setting Real-Time Vocoder Parameters .

Setting

Range: 0.0 to 5.0 V

Resolution: 0.1 mV

Query

Range: 0.0 to 5.0 V

Resolution: 0.1 mV

*RST Setting

0.0 V

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:OUTPut:VOLTage 350MV"
!Sets the peak level of AUDIO OUT signal to 350 mV. 

CALL:RTVocoder:VADetection[:STATe][:SELected]

CALL:RTVocoder:VADetection[:STATe]:WCDMa

Function

Sets/queries whether or not the voice activity detection algorithm is implemented in the speech codec. See Setting Real-Time Vocoder Parameters .

Setting

Range: 1|ON | 0|OFF

Query

Range: 1 | 0

*RST Setting 0|OFF

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:VADetection ON"
!Enable the voice activity detection algorithm. 

CALL:RTVocoder:VADetection:AMRate:ALGorithm[:SELected]

CALL:RTVocoder:VADetection:AMRate:ALGorithm:WCDMa

Function

Sets/queries the voice activity detection algorithm. See Setting Real-Time Vocoder Parameters .

Setting

Range: OPTion1 | OPTion2

Query

Range: OPT1 | OPT2

*RST Setting

OPT1

Requirements

Lab Application Revision: E.00.16 and above

Programming Example

 
OUTPUT 714;"CALL:RTVocoder:VADetection:AMRate:ALGorithm OPT2"
!Select Option 2 VAD algorithm for AMR.