Re: Audio

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Simon Mills (simon++at++wgs.estec.esa.nl)
Thu, 10 Sep 1998 09:25:48 +0200

j. kouwer wrote:
> We would like to add 3D-audio to our performer applications. At the
> moment we are evaluating AudioWorks and we are having problems
> integrating it with performer.
>
> Now I would like to now the following, as I don't believe that we're the
> only one who wants to add sound to aour applications:
>
> - Are there alternatives for AudioWorks? Both suggestions for SGI-based
> solutions as for PC-based soulutions are welcome.
> - Is there anyone who has experience with audioworks and who has been
> able to make it work with the audio scene-graph ( _Not_ the high-level
> objects, but objects like Snode, Enode and Emitters )?
>
> Regards,
> Jeroen Kouwer
> --
> ======================================[Unclassified Mail]=========
> Ing. Jeroen Kouwer |
> Hollandse Signaalapparaten B.V. |
> dept. Systems/IS | Email: j.kouwer++at++signaal.nl
> P.O. Box 42 | Phone: +31-74-2484313
> 7550 GD Hengelo, The Netherlands | Fax : +31-74-2484064
> =======================================================================

Hi,

we also needed to add some sound to our performer applications and felt
that AudioWorks, although good, was overkill at present. My alternative
was to make my own 3D sound library based on the SGI Digital Media audio
development libraries. I have a seperate audio rendering process much
like the draw process. Sounds can be attached to pfNodes and I've added
some 3D affects like attentuation with distance and (2-channel stereo)
spatialization. Sounds can dynamically be started, stopped, change
pitch, change volume. I also made it work locally or over the network
(since our Onyx RE2 does not have a sound board). For us this is
sufficient at present and shows that you can "go it alone". Of course
this only works on the SGI.

I'm also curious if there are other solutions maybe using PC audio
hardware.
  
Regards, Simon
________________________________________________________________________

Simon C. Mills
Silicon Worlds S.A.
c/o Modelling & Simulation Section (TOS-EMM) Tel: +31 (0)71 565 3725
European Space Agency (ESA/ESTEC) Fax: +31 (0)71 565 5419
Postbus 299, 2200AG Noordwijk e-mail: simon++at++wgs.estec.esa.nl
The Netherlands http://www.estec.esa.nl/wmwww/EMM
________________________________________________________________________

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