16 Jan
2016
16 Jan
'16
8:37 p.m.
Hi all,
In need of a (console) wave file player which is also jack-transport
aware, serching around I came up with this ecasound command:
ecasound -c -i ultimo_sole_audio_dial_eff.wav -o jack,system \
-G:jack,ecasound,recv
However I have two problems:
1. The above starts in interactive mode while I'd like ecasound to
autostart when run. It seems that omitting -c will cause ecasound to
exit upon jack transport stop, which is a no-go for me
2. The wave file is mono: I tried various combinations sucj as
jack_multi but this will always either create two outputs or one output
and connect it only to one of the system (stereo) outputs.
I guess I could work-around problem 2 by either converting the file to
stereo or further using jack_lsp in my script to connect the output to
the second system port.. Any idea about 1?
Lorenzo
16 Jan
16 Jan
8:57 p.m.
Hi Lorenzo,
On Sat, 16 Jan 2016, Lorenzo Sutton wrote:
ecasound -c -i ultimo_sole_audio_dial_eff.wav -o
jack,system \
-G:jack,ecasound,recv
[...]
1. The above starts in interactive mode while I'd
like ecasound to autostart
when run. It seems that omitting -c will cause ecasound to exit upon jack
transport stop, which is a no-go for me
You can add "-E start" to handle this (see ecasound(1) man page for -E, it
allows you to pass set of initial commands to run, so designed
specifically to address this problem).
2. The wave file is mono: I tried various combinations
sucj as jack_multi but
this will always either create two outputs or one output and connect it only
to one of the system (stereo) outputs.
Add "-chcopy:1,2" (see ecasound(1) man page for this as well) and "-f:,2,
-o jack,system". This will copy left channel contents to the right, and output
a stereo stream to JACK.
Br, Kai
18 Jan
18 Jan
8:04 a.m.
Hi Kai,
On 16/01/2016 21:50, Kai Vehmanen wrote:
Hi Lorenzo,
On Sat, 16 Jan 2016, Lorenzo Sutton wrote:
Thanks for your very helpful suggestions. Those options totally slipped
when reading the man.
Lorenzo.
ecasound -c -i ultimo_sole_audio_dial_eff.wav -o
jack,system \
-G:jack,ecasound,recv
[...]
1. The above starts in interactive mode while
I'd like ecasound to
autostart when run. It seems that omitting -c will cause ecasound to
exit upon jack transport stop, which is a no-go for me
You can add "-E start" to handle this (see ecasound(1) man page for -E,
it allows you to pass set of initial commands to run, so designed
specifically to address this problem).
2. The wave file is mono: I tried various
combinations sucj as
jack_multi but this will always either create two outputs or one
output and connect it only to one of the system (stereo) outputs.
Add "-chcopy:1,2" (see ecasound(1) man page for this as well) and
"-f:,2, -o jack,system". This will copy left channel contents to the
right, and output
a stereo stream to JACK.
3531
days inactive
3533
days old
linux-audio-user@lists.linuxaudio.org
2 comments
2 participants
participants (2)
-
Kai Vehmanen -
Lorenzo Sutton