got a little bit of a confusion here.
got a nice new TerraTec EWX 24/96
recording and playback via analog in/out works just great, sound-quality
is awesome.
digital output via spdif works as well, very nice.
digital input via spdif works in the sense that I can re-route it to
analog out and listen to whatever I plug in.
but I want to record that stuff.
so I did arecord -L to find out which devices I got:
(sorry, big listing coming up)
PCM list:
hw {
@args.0 CARD
@args.1 DEV
@args.2 SUBDEV
@args.CARD {
type string
default {
@func getenv
vars {
0 ALSA_PCM_CARD
1 ALSA_CARD
}
default {
@func refer
name 'defaults.pcm.card'
}
}
}
@args.DEV {
type integer
default {
@func igetenv
vars {
0 ALSA_PCM_DEVICE
}
default {
@func refer
name 'defaults.pcm.device'
}
}
}
@args.SUBDEV {
type integer
default {
@func refer
name 'defaults.pcm.subdevice'
}
}
type hw
card $CARD
device $DEV
subdevice $SUBDEV
}
plughw {
@args.0 CARD
@args.1 DEV
@args.2 SUBDEV
@args.CARD {
type string
default {
@func getenv
vars {
0 ALSA_PCM_CARD
1 ALSA_CARD
}
default {
@func refer
name 'defaults.pcm.card'
}
}
}
@args.DEV {
type integer
default {
@func igetenv
vars {
0 ALSA_PCM_DEVICE
}
default {
@func refer
name 'defaults.pcm.device'
}
}
}
@args.SUBDEV {
type integer
default {
@func refer
name 'defaults.pcm.subdevice'
}
}
type plug
slave.pcm {
type hw
card $CARD
device $DEV
subdevice $SUBDEV
}
}
plug {
@args.0 SLAVE
@args.SLAVE {
type string
}
type plug
slave.pcm $SLAVE
}
shm {
@args.0 SOCKET
@args.1 PCM
@args.SOCKET {
type string
}
@args.PCM {
type string
}
type shm
server $SOCKET
pcm $PCM
}
tee {
@args.0 SLAVE
@args.1 FILE
@args.2 FORMAT
@args.SLAVE {
type string
}
@args.FILE {
type string
}
@args.FORMAT {
type string
default raw
}
type file
slave.pcm $SLAVE
file $FILE
format $FORMAT
}
file {
@args.0 FILE
@args.1 FORMAT
@args.FILE {
type string
}
@args.FORMAT {
type string
default raw
}
type file
slave.pcm null
file $FILE
format $FORMAT
}
null {
type null
}
default {
type plug
slave.pcm {
type hw
card {
@func getenv
vars {
0 ALSA_PCM_CARD
1 ALSA_CARD
}
default {
@func refer
name 'defaults.pcm.card'
}
}
device {
@func igetenv
vars {
0 ALSA_PCM_DEVICE
}
default {
@func refer
name 'defaults.pcm.device'
}
}
subdevice {
@func refer
name 'defaults.pcm.subdevice'
}
}
}
cards 'cards.pcm'
front 'cards.pcm.front'
rear 'cards.pcm.rear'
center_lfe 'cards.pcm.center_lfe'
surround40 'cards.pcm.surround40'
surround51 'cards.pcm.surround51'
iec958 'cards.pcm.iec958'
spdif 'cards.pcm.iec958'
so normally, when I record via line-in, I do:
ecasound -f:s16_le,2,44100 -i:alsa,default -o:somefile.raw
which, as I said, works nicely.
so I tried to record something via spdif.
naively, I tried:
ecasound -f:s16le,2,44100 -t:15 -i:alsa,spdif -o:test.raw
but the only output I get is:
eye@lormoral wav $ ecasound -f:s16_le,2,44100 -t:15 -i:alsa,spdif -o:test.raw
****************************************************************************
* ecasound v2.1dev11 (C) 1997-2002 Kai Vehmanen
****************************************************************************
- [ Session created ] ------------------------------------------------------
- [ Chainsetup created (cmdline) ] -----------------------------------------
(eca-chainsetup-parser) Set processing time to 15.00.
- [ Connecting chainsetup ] ------------------------------------------------
(eca-chainsetup) 'rt' buffering mode selected.
Aborted
so apparently this doesn't work.
so I tried with arecord
eye@lormoral wav $ arecord -D spdif -t wav -f cd -d 15 -v test.wav
Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
arecord: set_params:759: Sample format non available
yeah, I know, I get an error-message. but I don't understand what it
means ...
I even tried using envy24control to route the spdif-input to the
"digital mixer" and record using alsa,default, but that gives me a
silent file.
Does anyone have any hints on how to record from the optical input?
--
Michael Hellwig aka The Eye olymp.idle.at admin
check out http://homepage.uibk.ac.at/~csaa5128 for gpg public key
and some other info
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