CALL:RTVocoder

Function

Queries the vocoder calibration type. See Calibration Type .

Setting

AOPath | AIPath | ICODec

Programming Example

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

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

Requirements

Programming Example

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

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

Requirements

Programming Example

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

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

Requirements

Programming Example

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

Function

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

Programming Example

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

Function

Setting

Range: 300 Hz to 1100 Hz

Resolution: 1.0 Hz

Query

*RST Setting

Programming Example

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

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

0.0 V

Requirements

Programming Example

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

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

Requirements

Programming Example

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

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

Setting

Range: OPTion1 | OPTion2

Query

Range: OPT1 | OPT2

OPT1

Requirements

Programming Example

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