User guide

IN1604 DTP and IN1604 HD Scalers • SIS Configuration and Control 41
Command ASCII Command
(host to scaler)
Response
(scaler to host)
Additional Description
Audio Configuration Commands
Output audio mute
Enable global audio mute
1Z
Amt1
]
Enables audio mute on all outputs.
Disable global audio mute
0Z
Amt0
]
Disable audio mute on all outputs.
Set discrete audio mute
X4** X( Z Amt X4**X(] Set audio mute on output X4*.
View output audio mute
Z
X(
•
X(]
AmtX(
•
X(]
View the audio mute status on the
analog and digital audio output.
Verbose mode 2 and 3
Audio input format
NOTE: For audio input format details, see Audio Configuration Page on page 68.
Set audio input format
EIX!*X3%AFMT} AfmtI X!*X3%] Set the audio format of input X! to X3%.
NOTES:
• For input 1, X3% can only be set to 0, 1, and 2. Attempting to set this input to a digital format returns an
E14 error message.
• For inputs 2-4, digital auto modes (X3% = 5, 6, 7, and 8) detect and use embedded digital audio when
present or will use the analog audio input when digital audio is not detected.
View audio input format
EIX!AFMT} X3%] View the audio input format of input X!.
Audio gain and attenuation (analog inputs only)
Set gain or attenuation
EX3*G AudX3*] Set the audio input gain to X3*.
Increment gain or
attenuation
+G
Aud
X3*]
Increase the audio input gain by 1 dB.
Decrement gain or
attenuation
-G
Aud
X3*]
Decrease the audio input gain by 1 dB.
View audio gain level
G
X3*]
View the audio level of the current input.
NOTES:
X! = Input selection 1 = configurable VGA
2 = HDMI/DVI 1
3 = HDMI/DVI 2
4 = HDMI/DVI 3
X( = Enable or disable 0 = off or disabled
1 = on or enabled
X3% = Audio input format 0 = none (input muted)
1 = analog 1 (TRS) (default for input 1)
2 = analog 2 (captive screw)
3 = LPCM-2Ch digital (default for inputs 2-4)
4 = Multi-Ch digital
5 = LPCM-2Ch digital auto (analog 1)
6 = Multi-Ch digital auto (analog 1)
7 = LPCM-2Ch digital auto (analog 2)
8 = Multi-Ch digital auto (analog 2)
X3* = Audio input gain -18 to +24 in dB (0 = default)
X4* = Audio output mute 1 = local 5-pole captive and remote 5-pole remote (DTP)
captive analog audio output
2 = embedded HDMI audio