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980 DP 1.4 Video Generator / Analyzer - User Guide
0 – off (if previously selected audio is not analog)
1 – DP
6 - HDMI
Examples:
DASI 6
// sets the digital audio signal to DisplayPort.
DASI?
// returns the current setting.
ARAT
Command supported?: Y
Sets the audio sampling rate on HDMI LPCM audio.
Requires FMTU or ALLU to activate.
Parameter values:
- rate = sampling rate; 32000, 44100, 48000, 88200, 96000, 176400, 192000
Examples:
ARAT 48000
// sets the sampling rate to 48kHz.
ARAT?
// returns the current setting of the sampling rate.
NBPA
Command supported?: Y
Sets the number of bits per sample in analog and HDMI PCM audio.
Requires FMTU or ALLU to activate.
Parameter values:
- bits = number of bits per sample; 16, 20 or 24
Examples:
NBPA 24
// sets the value of audio depth.
NBPA?
// returns the current setting.
NDAC
Command supported?: Y
Sets the number of digital audio channels for an LPCM audio signal.
Requires FMTU or ALLU to activate.
Parameter values:
- ch = channels; 2 - 8
Examples:
NDAC 8
// sets the number of channels to 8.
NDAC?
// returns the current setting.
SAMP
Command supported?: Y
Sets the amplitude on either a specific channel or all channels.
Requires FMTU or ALLU to activate.
Syntax: SAMP <amp> <ch>
Possible parameter values:
- amp amplitude; min = -99dB, max = 0dB
- ch = channel; 0 - 7
Examples:
SAMP -12
// sets all channels to -12dB.
Or
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Query supported?: Y
Query supported?: Y
Query supported?: Y
Query supported?: Y
Rev. A1
June 16, 2017
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