MSD-72 series Command Guide
71
@GAF / @SAF
Audio format
Getting
Command
@GAF, ch
Response
@GAF, ch, format_1, frequency_1 (, format_2, frequency_2
・・・
)
Setting
Command
@SAF, ch, format_1, frequency_1 (, format_2, frequency_2
・・・
)
Response
@SAF, ch, format_1, frequency_1 (, format_2, frequency_2
・・・
)
Parameter
ch: Input channel
0 = All digital inputs (for setting only), 1 = IN1 to 9 = IN9
format_1-9: Audio format
0 = PCM,
1 = Dolby Digital,
2 = AAC,
3 = Dolby ,
4 = DTS,
5 = DTS-HD,
6 = Dolby TrueHD
[Default]: only PCM can be output
frequency_1-9: Maximum sampling frequency
0 = Not output, 1 = 32 kHz,
2 = 44.1 kHz,
3 = 48 kHz,
4 = 88.2 kHz,
5 = 96 kHz,
6 = 176.4 kHz,
7 = 192 kHz
[Default] DTS-HD: 192 kHz, Dolby TrueHD: 96 kHz,
other formats: 48 kHz
Maximum settable sampling frequency depends on the audio format.
Audio format
Maximum sampling frequency (kHz)
PCM
32 / 44.1 / 48 / 88.2 / 96 / 176.4 / 192
Dolby Digital
Output disabled / 32 / 44.1 / 48
AAC
Output disabled / 32 / 44.1 / 48 / 88.2 / 96
Dolby
Output disabled / 32 / 44.1 / 48
DTS
Output disabled / 32 / 44.1 / 48 / 96
DTS-HD
Output disabled / 44.1 / 48 / 88.2 / 96 / 176.4 / 192
Dolby TrueHD
Output disabled / 44.1 / 48 / 88.2 / 96 / 176.4 / 192
Getting commands: the set audio formats and maximum sampling frequency is
returned.
Setting commands: send the desired audio formats and the maximum sampling
frequencies. Other audio formats is set to
“0” (Output disabled) for the maximum
sampling frequency. You do not need to specify
“0” parameter normally.
PCM is always enabled, you can skip this menu unless you need to change the
sampling frequency.
Getting
example
Command
Response
@GAF,1
@GAF,1,0,7
Description Getting the set audio formats for IN1.
Up to 192 kHz of PCM.
Setting
example
Command
Response
@SAF,2,4,3
@SAF,2,4,3
Description Enabling IN2 to output PCM and DTS 32, 44.1, and 48 kHz (PCM
’s sampling
frequency is not changed).
Remarks
These commands are only for digital input.
IN8 and IN9 are available only when
“1” (Digital signal). is selected for “
”.
If
“0” (Analog signal) is selected, “-1” is returned.