Simple plugin for use with 'ma' console command

Russ · Sep 24, 2006, 01:34 AM

I thought I would post a simple sample plugin for use with the 'ma' console command (for TV card users etc).

Code:

name "VolumeSt";
copyright "Copyright (c) 2006.";
created "09/24/2006";
engine "kX";
guid "dfc06b62-e952-43ac-8bee-241890ff931a";

; Registers
input InL, InR;
output OutL, OutR;
control VolL=1, VolR=1;

; code
macs OutL, 0x0, InL, VolL;
macs OutR, 0x0, InR, VolR;

end
<this should be a blank line>

Load the above plugin in the DSP.
Open kX Console and type:
ma 2 VolumeSt VolL VolR 0x7fffffff<enter>
Note: The above command is case sensitive.

Now the kX0/LineIn slider in Windows Mixer will control the volume registers of this plugin. In the DSP, connect the plugin in the pathway of whatever signal that you want to control the volume of, using that slider (eg: in between prolog and xrouting).

BTW: To set the slider back to its default setting:
Open kX Console and type:
ma 2 0 0 0 0x20000000<enter>

-Russ

Maddogg6 · Sep 24, 2006, 02:34 AM

WAY COOL RUSS!

Is there some place that explains what can be accomplished with KX Console? - explaining the commands in more detail than the consoles '/help'

Is there a referece of windows API funcs specific to sound cards with DSP's (I see in the console help - that the MA command is to
'assign a microcode slider to DSP program')

This is hunky dory - but isnt that refering to DSP language 'microcode'? - or is that what M$ calls the interface to system sound card? Stuff like that is the knowledge in which I thirst.

Russ · Sep 24, 2006, 03:00 AM

The kX Console commands do not really have anything to do with any Windows API functions. It only controls aspects of kX, and the sound cards hardware. These commands are all a function of kX itself.

The help can be a little hard to decipher at times (and is occasionally wrong (i.e. typo)), but the source code for kxctrl is included in the SDK, and can help to understand some of the commands (if you understand the source code). Additionally, ikx.h has info on some of the parameters, etc.

Quote:

Originally Posted by Maddogg6

'assign a microcode slider to DSP program

That means 'assign kX slider in Windows Mixer to registers in a DSP plugin' (the usage instructions are not complete), which is what the above example does.

Currently it seems that only Master, Rec, Wave, and Synth can be reassigned.

As for the other console commands, it would probably be easiest if you just ask about the ones that you do not understand.

BTW: This functionality was Eugene's doing, I am only trying to explain how it can be used.

Russ · Sep 24, 2006, 03:37 AM

BTW: The default (reset) values for each, appear to be as follows:

Master:
ma 0 epilog MasterL MasterR 0x7fffffff

Rec:
ma 1 epilog RecLVol RecRVol 0x7fffffff

kX0:
ma 2 0 0 0 0x20000000

kX1:
ma 3 0 0 0 0x20000000

Synth:
ma 4 0 0 0 0

Wave:
ma 5 0 0 0 0

Chester01 · Sep 24, 2006, 09:50 AM

Is there any way to assign the synth slider to keyboard keys? (as the Master Mixer is usually the multimedia volume keys on a keybaord)... That would be very handy, we could then have multiple volumecontrols with our keys, if you never used home and end that could be a volume control, so could page up and page down

Maddogg6 · Sep 24, 2006, 11:26 AM

@Russ: Ahh. Ok - I think Im beginning to understand...

@Chester & Russ:

Wouldnt you use the following to map the windows Synth Slider to Epilog Master Vol.?

ma 4 epilog MasterL MasterR 0x7fffffff

But Im not sure why your asking - as the MM keys work for me in 3538L - unless Im not seeing/understanding something..??

Chester01 · Sep 24, 2006, 12:30 PM

that is how you would map it, I am referring to assigning keys on the keyboard to control the synth slider (which in turn would control the kx driver volume control)

Russ · Sep 24, 2006, 01:47 PM

It would be easier to just control a plugin using hotkeys, and leave the Windows Mixer stuff out of it, but it could be done... You would have to write a program to do it. Look up 'Audio Mixers' and 'RegisterHotkey' in MSDN.

Do not forget about this:
Control KX with PC keys

smyle · Sep 25, 2006, 10:53 AM

Is there a way to set console commands permanently?
When i reboot my pc, i have to write command to console again to assign synt slider to linein.

Russ · Sep 25, 2006, 03:26 PM

Hmm, that would appear to be a bug.
As a workaround, you could try creating a batch file that automatically executes the console command at startup.

i.e.
(put the following in a batch file, and put the file in the Windows startup folder)
kxctrl -ma 2 VolumeSt VolL VolR 0x7fffffff

BuzzT · Oct 19, 2006, 11:45 AM

Thanks, Russ! With this little sample plugin you solved my problems. Now my tv-card volume works fine. I hope that the "reload-bug" of console commands will be fixed in later releases, but your batch-file tip is a good way too. ;-)

Russ · Mar 28, 2008, 08:50 PM

The kX0 and kX1 sliders (in Windows Mixer) are back in 3540, so this plugin can again be used with those sliders.

RoyBatty · Apr 14, 2008, 01:53 PM

Thanks Russ, I was afraid that I would have to use the Creative drivers because of my TV card