Hi Eric,
Thanks for that, I would be most gratefull to lias with you on FG sound
To explain its a multi motherboard sim setup with Boeing panels interfaced
via a can network.
Each nav, comm and dme head has its own volume, these I expect can be dealt
with, what i was hoping to do was use the audio in a mono format, like steer
nav and com audio to the left channel feeding a head set, and them maybe
alarm audio to a speaker via the right channel. Which ever is controlled by
the pilots audio panel interfaced to the system.
This would be aside from the normal sound effects running on the main sound
channel.
Be it achieved by adding in additional sound cards in the main machine, or
utilizing the sound chips on the networked machines that run screens (which
would require some additional on the network io).
But I know my Intel 945 series motherboards have sound chips with front and
back connections, but i dont know if the chips will support different
streams for each one, as far as i recall they only report one audio device
and no inbuilt mixing. Maybe a better sound card with hardware mixing is
required.
>From what you say, adding extra sound cards would require modifications, I
guess to sim gear? Would this be along the lines of cloning some modules and
defining them to each system audio device or more involved than that? Is
Plib involved here as well?
Also at some stage I have to work to get FGcom, and my local off air audio
feeds into the system.
Yes I will dig in with it further, and am just looking at possible ways to
do it. Also keeping things to a minimum just with Alsa.
I installed pulse audio (for the mixer) last night and it fouled up the
system. I have minimal Ubuntu 10:10 with no gui on these machines, just X11,
Alsa and FG.
I think I need to start a web page with some notes for these off the beaten
track things I have been doing for people like me who build sims with FG as
the core rather than MS
Harry
On Sat, Feb 12, 2011 at 4:48 PM, Erik Hofman <e...@ehofman.com> wrote:
>
> Hi Harry,
> >
> > Could I ask if via simgear and I assume to alsa behind that, if its
> > possible to to get control over the levels of left and right channels
> > and hook them on the property tree.
> >
> > Where I am heading here splitting a single stereo sound device into 2
> > mono channels, ie is to be able to steer nav audio to the left like
> > for example ils marker tones, and maybe atc chatter or some thing else
> > to the right channel.
>
> I'm, not sure I completely understand what you're trying to do.
>
> The SoundManager in SimGear has a software volume control for all
> Sources, SoundGroups and for the SoundManager.
>
> At the moment it's not yet possible to drive multiple hardware devices
> but there has been a request before to be able to output the
> communication devices to a different audio jack than the rest of the
> sound effects.
>
> If you want to get deeper into it then you might want to contact me
> directly since I'm the author of the SoundManger code.
>
> Erik
>
>
>
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Regards Harry
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The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
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