Use DirectSound for internal sound effects

[GoogleCodeExporter]

Reported by adwtoronto in forum.
Reference: ””:http://www.athomemedia.co.uk/support/viewtopic.php?t=187

"Also running two sound cards, configured mediate to use my 5.1 sound card
which all my music and video files sound play fine, however the internal
special effects go through my other card."

Using DirectSound would allow us to target the appropriate sound device.

This would also allow us to change the volume for sound effects...

Reported by Rik in forum. Reference:
http://www.athomemedia.co.uk/support/viewtopic.php?t=182

"Although you can switch sound effects on/off [Use sound effects] it would
be great to be able to adjust the sound level [Sound effects level].
i.e.
- off, low, med, high
- or from 1 to 10"

Original issue reported on code.google.com by aretman...@gmail.com on 11 Jun 2008 at 3:32

[GoogleCodeExporter]

sound effect volume is not adjustable – this needs to be independent of audio 
& video
volume and should be configured through settings screens in theme (so will need
corresponding support).

We can address this by using a better engine for playing wav files or by using
DirectShow – then we could use MP3 format files too. 

I think we may have tried this previously in a test app but ran into issues when
rapidly recycling the graph. Have to research effect of having multiple graphs 
lying
- could be use one per sound effect for example? Or maybe a small pool of 
graphs.

Original comment by aretman...@gmail.com on 11 Jun 2008 at 3:45