마야5.1광출력에대한 문제입니다.

The CM8x38 provides(제공하다) the excellent(훌륭한) SPDIF capability(능력) with very chip
price(가치,정가) (yes, that's the reason I bought the card :)

The SPDIF playback(재생장치,반응,반향) and capture(포착하다) are done via the third(세번째) PCM device
(hw:0,2). Usually(일반적으로) this is assigned(할당하다) to the PCM device "spdif".
The available(이용가능한) rates are 44100 and 48000 Hz.
For playback with aplay, you can run like below(~보다 아래에):

% aplay -Dhw:0,2 foo.wav

or

% aplay -Dspdif foo.wav

24bit format is also supported experimentally(실험에의한).

The playback and capture over SPDIF use normal DAC and ADC,
respectively(각각,저마다), so you cannot playback both analog and digital streams(흐름)
simultaneously(일제히,동시에).

To enable(가능하게하다) SPDIF output(출력), you need to turn(바꾸다) on "IEC958 Output Switch"
control via mixer or alsactl. Then you'll see the red light on from
the card so you know that's working obviously(두드러지게) :)
The SPDIF input is always enabled, so you can hear SPDIF input data
from line-out with "IEC958 In Monitor" switch at any time (see
below).

You can play via SPDIF even with the first device(장치) (hw:0,0),
but SPDIF is enabled only when the proper(적합한) format (S16LE), sample rate
(441100 or 48000) and channels (2) are used. Otherwise(그렇지않으면) it's turned
off. (Also don't forget(기억을잊다) to turn on "IEC958 Output Switch", too.)

Additionally(게다가) there are relevant(적절한) control switches:

"IEC958 Mix Analog" - Mix analog PCM playback and FM-OPL/3 streams and
output through(통과,관통) SPDIF. This switch appears(나타나다) only on old chip
models (CM8738 033 and 037).
Note: without this control you can output PCM to SPDIF.
This is "mixing" of streams, so e.g. it's not for AC3 output
(see the next section(부분)).

"IEC958 In Select(선택하다)" - Select SPDIF input, the internal(내부의) CD-in (false(틀린))
and the external(외부의) input (true).

"IEC958 Loop" - SPDIF input data is loop back into SPDIF
output (aka bypass)

"IEC958 Copyright" - Set the copyright bit.

"IEC958 5V" - Select 0.5V (coax) or 5V (optical) interface(공유[접촉] 영역).
On some cards this doesn't work and you need to change the
configuration(기계구성) with hardware dip-switch.

"IEC958 In Monitor" - SPDIF input is routed(방법) to DAC.

"IEC958 In Phase(현상) Inverse(반대의)" - Set SPDIF input format as inverse.
[FIXME: this doesn't work on all chips..]

"IEC958 In Valid(정확한)" - Set input validity(정당함) flag detection(발견).

Note: When "PCM Playback Switch" is on, you'll hear the digital output
stream through analog line-out.
...마야5.1 광출력을 어떻게 설정해야하나염?