26 Mar
2005
26 Mar
'05
11:56 p.m.
Hi, I noticed that Jamin requires the steve harris plugins to compile.
Does this mean that jamin uses the SC 1-4 compressors or is the Jamin
compressor it's own thing?
Is there a way to host the SC compressors on their own ( for a lighter
weight option ) and still get the kind of visual metering of input,
output, and reduction?
Or alternatively, is there any way to control the Jamin parameters
externally, either via midi cc's or an api?
Thanks
Iain
27 Mar
27 Mar
5:32 a.m.
On Sat, 2005-03-26 at 21:55, Iain Duncan wrote:
Hi, I noticed that Jamin requires the steve harris
plugins to compile.
Does this mean that jamin uses the SC 1-4 compressors or is the Jamin
compressor it's own thing?
Is there a way to host the SC compressors on their own ( for a lighter
weight option ) and still get the kind of visual metering of input,
output, and reduction?
Or alternatively, is there any way to control the Jamin parameters
externally, either via midi cc's or an api?
You can use OSC to change scenes (20 available). This has been done
from Ardour (ask Ron Parker how ;).
Jan
6:06 a.m.
Or
alternatively, is there any way to control the Jamin parameters
externally, either via midi cc's or an api?
You can use OSC to change scenes (20 available). This has been done
from Ardour (ask Ron Parker how ;).
6:22 a.m.
On Sun, 2005-03-27 at 03:05, Iain Duncan wrote:
I should clarify, I mean actually slave each knob up to a cc so that
they can be tweaked with hardware live in a gig situation in order to
tune a mix to a room. So just changing snapshots would not be enough.
I've been looking online, but I haven't found anything that lets me do
this while also having visual feedback of in/out/gain reduction. Surely
there must be something?
If not, is there an API for Jamin? Perhaps I could just write a portmidi
app that uses the api to control the parameters in real time.
Nope, no API. Also, no knobs ;-)
Jan
Or alternatively, is there any way to control the Jamin
parameters
externally, either via midi cc's or an api?
You can use OSC to change scenes (20 available). This has been done
from Ardour (ask Ron Parker how ;).
8:09 p.m.
Thanks for the reply Jan. I'm a bit confused though, on the Jamin site I
believe you mention that you will be releasing API details soon. Does
that mean an API is in the works but not made yet?
I can understand why it wouldn't be a top priority, but I would think a
way to hook Jamin up to generic hardware control systems ( midi boxes,
etc ) would be quite a useful addition. An API giving access to the
various input controls and output display would make such an extension
pretty easy.
My own purpose is hopefully to be able to use it to replace the usual
bank of compressors and eqs used in live sound just before the final
outs. I do live techno shows, so it makes a BIG difference to be able to
get our final mix closer to the hotness and loudness of a mastered record.
Iain
Jan Depner wrote:
On Sun, 2005-03-27 at 03:05, Iain Duncan wrote:
I should clarify, I mean actually slave each knob up to a cc so that
they can be tweaked with hardware live in a gig situation in order to
tune a mix to a room. So just changing snapshots would not be enough.
I've been looking online, but I haven't found anything that lets me do
this while also having visual feedback of in/out/gain reduction. Surely
there must be something?
If not, is there an API for Jamin? Perhaps I could just write a portmidi
app that uses the api to control the parameters in real time.
Nope, no API. Also, no knobs ;-)
Jan
Or alternatively, is there any way to control the Jamin
parameters
externally, either via midi cc's or an api?
You can use OSC to change scenes (20 available). This has been done
from Ardour (ask Ron Parker how ;). 
8:38 p.m.
On Sun, Mar 27, 2005 at 03:07:57PM -0800, Iain Duncan wrote:
Thanks for the reply Jan. I'm a bit confused
though, on the Jamin site I
believe you mention that you will be releasing API details soon. Does
that mean an API is in the works but not made yet?
I can understand why it wouldn't be a top priority, but I would think a
way to hook Jamin up to generic hardware control systems ( midi boxes,
etc ) would be quite a useful addition. An API giving access to the
various input controls and output display would make such an extension
pretty easy.
The design should make it pretty easy to add OSC control of all the
paramaters, but its not done yet. I think its on the TODO list. I,
personally, am not wildly enthusaistic about adding native MIDI control to
jamin, but a MIDI->OSC bridge that controls it is OK.
The compressors are just SC4's, so if that all you need you could use
something like AMS + meterbridge (or jack-rack if you dont need the
crossover) and use MIDI to control that. AMS makes it easy to bind MIDI
CC's to LADSPA controls.
- Steve
8:59 p.m.
On Sun, 2005-03-27 at 17:38, Steve Harris wrote:
On Sun, Mar 27, 2005 at 03:07:57PM -0800, Iain Duncan
wrote:
Steve, if you'll give me some pointers on how to add OSC control for
a parameter I can take a shot at implementing it. I've got a pretty
good handle on how to control all of the parameters I'm just not that
familiar with OSC. I also don't think we should add MIDI control. If
we have OSC for all the parameters it can be done externally.
Thanks for the reply Jan. I'm a bit confused
though, on the Jamin site I
believe you mention that you will be releasing API details soon. Does
that mean an API is in the works but not made yet?
I can understand why it wouldn't be a top priority, but I would think a
way to hook Jamin up to generic hardware control systems ( midi boxes,
etc ) would be quite a useful addition. An API giving access to the
various input controls and output display would make such an extension
pretty easy.
The design should make it pretty easy to add OSC control of all the
paramaters, but its not done yet. I think its on the TODO list. I,
personally, am not wildly enthusaistic about adding native MIDI control to
jamin, but a MIDI->OSC bridge that controls it is OK.
The compressors are just SC4's, so if that all you
need you could use
something like AMS + meterbridge (or jack-rack if you dont need the
crossover) and use MIDI to control that. AMS makes it easy to bind MIDI
CC's to LADSPA controls.
You'd have to band-limit prior to compressing to get the same effect
wouldn't you?
Jan
29 Mar
29 Mar
7:19 a.m.
On Sun, Mar 27, 2005 at 06:05:14 -0600, Jan Depner wrote:
Something like that. Typically crossovers are paired low- and high-pass
filters I think.
- Steve
On Sun, 2005-03-27 at 17:38, Steve Harris wrote:
Well, it's slightly tricky, we need to either poll the OSC librarys for
incoming packets in the GTK idle thread or let it use its own thread and
signal the JAMin control stuff, but I cant remeber if that cares what
thread it was called from or not.
I'l try to find time to add control for one parameter over OSC, that
should make it obvious how to do the others, but it will be after the next
point release goes out I think.
On Sun, Mar 27, 2005 at 03:07:57PM -0800, Iain
Duncan wrote:
Steve, if you'll give me some pointers on how to add OSC control for
a parameter I can take a shot at implementing it. I've got a pretty
good handle on how to control all of the parameters I'm just not that
familiar with OSC. I also don't think we should add MIDI control. If
we have OSC for all the parameters it can be done externally. Thanks for the reply Jan. I'm a bit confused
though, on the Jamin site I
believe you mention that you will be releasing API details soon. Does
that mean an API is in the works but not made yet?
I can understand why it wouldn't be a top priority, but I would think a
way to hook Jamin up to generic hardware control systems ( midi boxes,
etc ) would be quite a useful addition. An API giving access to the
various input controls and output display would make such an extension
pretty easy.
The design should make it pretty easy to add OSC control of all the
paramaters, but its not done yet. I think its on the TODO list. I,
personally, am not wildly enthusaistic about adding native MIDI control to
jamin, but a MIDI->OSC bridge that controls it is OK. The
compressors are just SC4's, so if that all you need you could use
something like AMS + meterbridge (or jack-rack if you dont need the
crossover) and use MIDI to control that. AMS makes it easy to bind MIDI
CC's to LADSPA controls.
You'd have to band-limit prior to compressing to get the same effect
wouldn't you?
11:47 a.m.
On Tue, 2005-03-29 at 04:18, Steve Harris wrote:
On Sun, Mar 27, 2005 at 06:05:14 -0600, Jan Depner
wrote:
Sounds good. I'm still holding off on the changes I've made until
we get the next release out. BTW, my version now will use button 1 or 2
to move the crossover or parametric controls. Button 2 won't draw the
curve though so it's a bit "safer" to use.
Jan
Steve, if you'll give me some pointers on how to add OSC control for
a parameter I can take a shot at implementing it. I've got a pretty
good handle on how to control all of the parameters I'm just not that
familiar with OSC. I also don't think we should add MIDI control. If
we have OSC for all the parameters it can be done externally.
Well, it's slightly tricky, we need to either poll the OSC librarys for
incoming packets in the GTK idle thread or let it use its own thread and
signal the JAMin control stuff, but I cant remeber if that cares what
thread it was called from or not.
I'l try to find time to add control for one parameter over OSC, that
should make it obvious how to do the others, but it will be after the next
point release goes out I think.
27 Mar
27 Mar
9:06 p.m.
The design should make it pretty easy to add OSC
control of all the
paramaters, but its not done yet. I think its on the TODO list. I,
personally, am not wildly enthusaistic about adding native MIDI control to
jamin, but a MIDI->OSC bridge that controls it is OK.
That sounds good.
The compressors are just SC4's, so if that all you
need you could use
something like AMS + meterbridge (or jack-rack if you dont need the
crossover) and use MIDI to control that. AMS makes it easy to bind MIDI
CC's to LADSPA controls.
I am curious as to how to get visual indication of how much gain
reduction is going on though. Would AMS + meterbridge suppy that? That
does show up in Jamin right? I find it a lot easier to tune a
compressors settings if I can see when it's working and by how much. The
metering on the waves plugins are very well designed that way. Does the
SC4 ladpsa interface allow one access to that data?
Thanks for all the help everyone.
Iain
29 Mar
29 Mar
7:21 a.m.
On Sun, Mar 27, 2005 at 04:05:34 -0800, Iain Duncan wrote:
Yes, the gain reduction (and metered input level) is exposed via output
control ports. I cant remember if AMS gives you access to them or not,
but it should :)
- Steve
The design
should make it pretty easy to add OSC control of all the
paramaters, but its not done yet. I think its on the TODO list. I,
personally, am not wildly enthusaistic about adding native MIDI control to
jamin, but a MIDI->OSC bridge that controls it is OK.
That sounds good.
The compressors are just SC4's, so if that all
you need you could use
something like AMS + meterbridge (or jack-rack if you dont need the
crossover) and use MIDI to control that. AMS makes it easy to bind MIDI
CC's to LADSPA controls.
I am curious as to how to get visual indication of how much gain
reduction is going on though. Would AMS + meterbridge suppy that? That
does show up in Jamin right? I find it a lot easier to tune a
compressors settings if I can see when it's working and by how much. The
metering on the waves plugins are very well designed that way. Does the
SC4 ladpsa interface allow one access to that data? 
12:17 p.m.
On Tuesday 29 March 2005 12:20, Steve Harris wrote:
Yes, the gain reduction (and metered input level) is
exposed via output
control ports. I cant remember if AMS gives you access to them or not,
but it should :)
Yes, ams can give you access to them. Nevertheless I didn't find something to
display the value it output. But with galan and its controls you can have a
fader going up and down corresponding to the reduction and level which looks
kind of cool but seems to be cpu-eating. :-(
There should be levelmeters in galan and ams...
Arnold
--
There is a theory which states that if ever anyone discovers exactly what the
Universe is for and why it is here, it will instantly disappear and be
replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened.
-- Douglas Adams, The Restaurant at the End of the Universe
2:33 p.m.
On Tue, Mar 29, 2005 at 05:16:40PM +0200, Arnold Krille wrote:
On Tuesday 29 March 2005 12:20, Steve Harris wrote:
It seems like PD could probably fill this role. If I'm not
mistaken, there's a LADSPA host external, and there's a meter GUI
object. I'm still a PD newbie, and haven't yet really used either
of them, but it might be a good place to start.
-spencer
Yes, the gain reduction (and metered input level)
is exposed via output
control ports. I cant remember if AMS gives you access to them or not,
but it should :)
Yes, ams can give you access to them. Nevertheless I didn't find something to
display the value it output. But with galan and its controls you can have a
fader going up and down corresponding to the reduction and level which looks
kind of cool but seems to be cpu-eating. :-(
There should be levelmeters in galan and ams...
Arnold
6:46 p.m.
Yes, the gain reduction (and metered input level) is
exposed via output
control ports. I cant remember if AMS gives you access to them or not,
but it should :)
Is there actually a gain reduction output port or would I need to do:
( input ) - ( output - boost )
The above would successfully give me gain reduction correct?
Thanks for all the answers
Iain
30 Mar
30 Mar
8:06 a.m.
On Tue, Mar 29, 2005 at 01:45:05PM -0800, Iain Duncan wrote:
The obove wouldn't be quite right, but there is a reduction output.
- Steve
Yes, the gain reduction (and metered input level)
is exposed via output
control ports. I cant remember if AMS gives you access to them or not,
but it should :)
Is there actually a gain reduction output port or would I need to do:
( input ) - ( output - boost )
The above would successfully give me gain reduction correct?
5:43 p.m.
Is there
actually a gain reduction output port or would I need to do:
( input ) - ( output - boost )
The above would successfully give me gain reduction correct?
The obove wouldn't be quite right, but there is a reduction output.
7:45 p.m.
On Wed, Mar 30, 2005 at 12:42:29PM -0800, Iain Duncan wrote:
Okay great. Can you tell what's wrong with the above out of curiousity?
Well, input and output are audio signals, so if you difference them you
will get something complicated, but not the difference in amplitude.
You could take the envelope of input and output and difference the
envelopes, but it will be a different envelope follower to the one in the
plugin, so it wont be quite right anyway.
- Steve
Is there
actually a gain reduction output port or would I need to do:
( input ) - ( output - boost )
The above would successfully give me gain reduction correct?
The obove wouldn't be quite right, but there is a reduction output.
27 Mar
27 Mar
8:53 p.m.
On Sun, 2005-03-27 at 17:07, Iain Duncan wrote:
Thanks for the reply Jan. I'm a bit confused
though, on the Jamin site I
believe you mention that you will be releasing API details soon. Does
that mean an API is in the works but not made yet?
This is news to me. I just checked the page and that's what it says
alright :) I generally don't think in terms of an API for an
application (more for a library). At present the only way to interface
with the running application is scene changes using OSC. I can
understand what you want to do but it appears to me that the only way we
could reasonably provide that would be with some sort of external
interface like OSC for every function in the GUI (not that that's a bad
idea, it would just be a lot of work). If you have any suggestions on
how to implement something like this let us know. I believe that at
some point in the past Steve was talking about divorcing the processing
from the GUI but I'm not sure if that's going to happen or not.
Jan
28 Mar
28 Mar
5:11 p.m.
Jan Depner <eviltwin69(a)cableone.net> writes:
divorcing the processing from the GUI
That would be the proper way, in my opinion; preferably running as a
daemon and could be controlled with any interface. People would make
non-interactive easily scriptable command line interfaces and
interactive interfaces like ncurses, gtk+, etc.
--
Esben Stien is b0ef(a)esben-stien.name
http://www.esben-stien.name
irc://irc.esben-stien.name/%23contact
[sip|iax]:esben-stien.name
6:06 p.m.
On Mon, 2005-03-28 at 13:31, Esben Stien wrote:
Jan Depner <eviltwin69(a)cableone.net> writes:
Have fun ;-)
Jan
divorcing the processing from the GUI
That would be the proper way, in my opinion; preferably running as a
daemon and could be controlled with any interface. People would make
non-interactive easily scriptable command line interfaces and
interactive interfaces like ncurses, gtk+, etc.
6:12 p.m.
It would also make it really easy to hook up real time control options
without worrying about the control code interfering with performance.
For example, programming a midi slaved gui in portmidi and fltk is
surprisingly easy. If it were simple to stick it in a low priority
thread, I could attach my own controls no problem!
Iain
Esben Stien wrote:
Jan Depner <eviltwin69(a)cableone.net> writes:
divorcing the processing from the GUI
That would be the proper way, in my opinion; preferably running as a
daemon and could be controlled with any interface. People would make
non-interactive easily scriptable command line interfaces and
interactive interfaces like ncurses, gtk+, etc.
6974
days inactive
6978
days old
linux-audio-user@lists.linuxaudio.org
20 comments
6 participants
participants (6)
-
Arnold Krille -
Esben Stien -
Iain Duncan -
Jan Depner -
Spencer Russell -
Steve Harris