31 Jan
2003
31 Jan
'03
1:32 p.m.
Greets all,
I've got a nasty feeling I'm doing something stupid here, but i'm fed up
of doing it on my own.
sound blaster pci 128 ( ens1371 )
alsa0.9rc1
jack 0.44.0
I want to use jack-rack as a real time effects processor. The first
thing i'm not entirely comfortable about is that whatever audio I send
to the IN on my soundcard seems to get sent straight to the OUT ( i can
record stuff ok ). Then i'm starting jack:
[root@larry jordan]# jackd -R -d alsa -d hw:0
and the starting jack-rack ( as root, of course ). I've tried using the
-o -i options here too.
I get the following from jack_lsp:
[root@larry jordan]# jack_lsp
alsa_pcm:capture_1
alsa_pcm:capture_2
alsa_pcm:playback_1
alsa_pcm:playback_2
I've tried making what seemed like the sensible connections here with
jack_connect, but the sound i'm sending in either just gets echoed to
the output ( as per normal ), or I get hideous feedback.
Somebody, please help. Thanks, Jordan.
31 Jan
31 Jan
1:54 p.m.
On Fri, Jan 31, 2003 at 05:24:57 +0000, jordan muscott wrote:
I've tried making what seemed like the sensible
connections here with
jack_connect, but the sound i'm sending in either just gets echoed to
the output ( as per normal ), or I get hideous feedback.
Check the mixer settings, with alsa-mixer or similar, the record input
should be line-in.
- Steve
2:04 p.m.
Steve Harris wrote on Fri, 31-Jan-2003:
On Fri, Jan 31, 2003 at 05:24:57 +0000, jordan muscott
wrote:
AND, you'll need the line level to be muted (or 0). That's why
you get the echo.
jlc
I've tried making what seemed like the
sensible connections here with
jack_connect, but the sound i'm sending in either just gets echoed to
the output ( as per normal ), or I get hideous feedback.
Check the mixer settings, with alsa-mixer or similar, the record input
should be line-in.
2:11 p.m.
On Fri, 31 Jan 2003 12:56:10 -0500
Jesse Chappell <jesse(a)essej.net> wrote:
Steve Harris wrote on Fri, 31-Jan-2003:
Ok, i've muted the line level, but there isn't a line-in on alsamixer,
presumably 'capture' is what I want. And er, just to make sure, what
which connections would you suggest making with jack_connect ?
alsa_pcm:capture_1
alsa_pcm:capture_2
alsa_pcm:playback_1
alsa_pcm:playback_2
jack_rack:in_1
jack_rack:in_2
jack_rack:out_1
jack_rack:out_2
thanks again, J
On Fri, Jan 31, 2003 at 05:24:57 +0000, jordan
muscott wrote:
AND, you'll need the line level to be muted (or 0). That's why
you get the echo.
I've tried making what seemed like the
sensible connections here
with jack_connect, but the sound i'm sending in either just gets
echoed to the output ( as per normal ), or I get hideous feedback.
Check the mixer settings, with alsa-mixer or similar, the record
input should be line-in.
2:18 p.m.
On Fri, 31 Jan 2003 18:04:26 +0000
jordan muscott <jordan(a)no-future.com> wrote:
Ok, i've muted the line level, but there isn't a line-in on alsamixer,
presumably 'capture' is what I want.
hang on, that is me being stupid isn't it? Does line == line-in ?
On Fri, Jan 31, 2003 at 05:24:57 +0000, jordan
muscott wrote:
AND, you'll need the line level to be muted (or 0). That's why
you get the echo.
I've tried making what seemed like the
sensible connections here
with jack_connect, but the sound i'm sending in either just gets
echoed to the output ( as per normal ), or I get hideous
feedback.
Check the mixer settings, with alsa-mixer or similar, the record
input should be line-in.
2:20 p.m.
On Fri, 31 Jan 2003 17:24:57 +0000
jordan muscott <jordan(a)no-future.com> wrote:
to the IN on my soundcard seems to get sent straight to the OUT ( i can
record stuff ok ). Then i'm starting jack:
[root@larry jordan]# jackd -R -d alsa -d hw:0
I'd start jackd with low frame-size/period:
-p 256 OR -p 128 OR -p 64
Also "-n" setting has something to do with the responsiveness but I'm not
sure how much.
and the starting jack-rack ( as root, of course ).
I've tried using the
I've tried making what seemed like the sensible connections here with
jack_connect, but the sound i'm sending in either just gets echoed to
the output ( as per normal ), or I get hideous feedback.
That's perfectly normal. (for what I know) You just have to balance the line-in and
PCM out levels, so that you get the effect but not the feedback.
The delay of the effect (latency) is dependent of the "-p" and "-n"
setting of jackd.
janne
3:07 p.m.
On Fri, 31 Jan 2003 20:09:44 +0200
janne halttunen <jhalttun(a)pp.htv.fi> wrote:
hmm, i've kind of got somewhere, very unsatisfactory though. Is there
no way of completely getting rid of the dry signal? It seems that I have
to bump the line up a bit to get some input, but as soon as I do that,
I'm getting the dry signal echoed out of the output of my sound card.
I'm trying to compress some drums, so therefore this isn't what I want
at all.
thanks again, Jordan.
I've tried
making what seemed like the sensible connections here
with jack_connect, but the sound i'm sending in either just gets
echoed to the output ( as per normal ), or I get hideous feedback.
That's perfectly normal. (for what I know) You just have to balance
the line-in and PCM out levels, so that you get the effect but not the
feedback.
1 Feb
1 Feb
7:46 a.m.
On Fri, 31 Jan 2003 18:59:40 +0000
jordan muscott <jordan(a)no-future.com> wrote:
On Fri, 31 Jan 2003 20:09:44 +0200
janne halttunen <jhalttun(a)pp.htv.fi> wrote:
hmm, i've kind of got somewhere, very unsatisfactory though. Is there
no way of completely getting rid of the dry signal? It seems
Yeah, I've so far experimented with some reverbs&stuff which needed the dry signal
around. :) But, I noted that when I tried to get rid of it, muting line-in at my
OSS-mixer cutted the input signal also. So, I ran "alsamixer" in console, set
capture (with space in kbd) to line-in, then muted it (with "M"), and it
worked.
janne
echoed to
the output ( as per normal ), or I get hideous feedback.
That's perfectly normal. (for what I know) You just have to balance
the line-in and PCM out levels, so that you get the effect but not the
feedback.
8:42 a.m.
On Sat, 1 Feb 2003 13:35:26 +0200
janne halttunen <jhalttun(a)pp.htv.fi> wrote:
Aha! Yeah, that was the vital piece of information.
Thanks, Jordan.
hmm, i've
kind of got somewhere, very unsatisfactory though. Is
there no way of completely getting rid of the dry signal? It seems
Yeah, I've so far experimented with some reverbs&stuff which needed
the dry signal around. :) But, I noted that when I tried to get rid
of it, muting line-in at my OSS-mixer cutted the input signal also.
So, I ran "alsamixer" in console, set capture (with space in kbd) to
line-in, then muted it (with "M"), and it worked.
7755
days inactive
7756
days old
linux-audio-user@lists.linuxaudio.org
8 comments
4 participants
participants (4)
-
janne halttunen -
Jesse Chappell -
jordan muscott -
Steve Harris