Quantum Data 780B User Manual page 204

780B Video Generator/Analyzer – User Guide
Table 11-1: List of Commands (alphabetical) – For Testing HDMI Sink Devices
Command Description
XSPD
Enables you to send
specific parameter
values of the Source
Product Descriptor
infoframe out the
HDMI output
independent of the
HDMI stream.
Note: The commands are not case sensitive.
Table 11-2 below provides the list of commands supported or testing HDMI sink devices:
Note: The commands are not case sensitive.
Table 11-2: List of Commands (alphabetical) – For Testing HDMI Audio in Sink Devices
Command Description
ARAT Sets the audio rate on
Optical, SPDIF and
HDMI LPCM audio.
SAMP Sets the amplitude on
either a specific
channel or channels.
SRAT Sets the sine wave
frequency on either a
specific channel or all
channels.
December 1, 2014
Syntax Parameters
XSPD:spdparameter <value>
Where spdparameter is one of the values identified
below and value is an allowed value associated with the
parameter provided in CEA-861-E.
XSPD [VNS [PDS [SDI]]
Where:
XSPD – Vendor string name.
PDS – Product description string.
SDI – Source device information (see EIA/CEA-861-E
standard)
Syntax Parameters
ARAT rate Where rate is one of:
ARAT? 32000, 44100, 48000, 88200,
<rate> 96000, 176400, 192000.
SAMP <amp> <ch> Where amp is between the
range of:
SAMP?
<amp> <ch> min = -99 dB
max = 0 dB
Where ch is in one of:
0 - 7
SRAT <rate> <ch> Where rate is between the
range of:
SRAT?
<rate> <ch> min = 8Hz
max = 20000Hz
Where ch is in one of:
0 - 7
Page 203
Command Example
To assign a vendor string
name:
XSPD QDI HDMI-
Analyzer
IFGU
To query the vendor string
name:
XSPD?
Command Example
To set the audio sampling rate to
48kHz:
ARAT 48000
FMTU
To set the amplitude of the audio
signal on channel 1 (FR) to
-3dB:
SAMP -3 1
FMTU
To set the amplitude of the audio
signal on all channels to -6dB:
SAMP -6
FMTU
To set the sinewave frequency
of the audio signal on channel 1
(FL) to 2000 Hz:
SRAT 2000 0
FMTU
To set the sinewave frequency
of the audio signal on all
channels to 4000Hz:
SRAT 4000
FMTU
Revision A7