Xna AudioEmitter & AudioLIstener - c#

Can you tell me how exactly does that thing works. I mean how audioListnere knows, that audioEmitter is playing something ? We are making game with few friends, and i am responsible for the audio, and i am collection all kind of knowledge. I apprieciate all kind of help.

Here is an article about Dynamic Audio from XNA Creators website. They also have a 3D Audio sample.
There is also the SoundLab with 170 audio files which maybe a good starting point.

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UWP Video SlowMotion and Reverse Effect

I am developing an UWP Desktop Application, where I would like to capture a video with my WebCam and apply some Video Effects on it.
I am using MediaComposition, MediaClip, MediaOverlay to composite multiple videos and intro pngs as a composition and put some overlays on it.
Now I was trying to implement a slow motion and reverse (boomerang /pingpong) video effect on my composition. I was expecting, that there are already some available IBasicVideoEffect effects for that, but I am searching since 3 days and not able to find something similar.
There is also FFmpegInteropX, which is I was trying but still not able to achieve my goal. But I also would like to avoid using FFMPEG in my project.
Does someone have any Ideas how to implement a slow motion and reverse video effect with UWP?
Thank you in advance.

Play, seek a video in Unity 3D

I want to play a video from Unity3D. The video play must be able to seek to a particular frame or time. Also I have a requirement of playing the video from web.
From Unity's documentation I am able to download an online video and play it as a movie texture. But I don't have the options to seek, fast forward etc. If you have any idea on that please let me know.
Or else suggest any libraries or plugins I can use to do this.
Thanks in advance.

Draw a human 3d body, Silverlight or Adobe Flash

Which technology to choose, that gives me the possibility to draw a 3d human in browser, with tricks like move the body with mouse, with less cpu use.
Thank in advance.
Silverlight 4 is not as competent in 3d rendering as Flash is.
Having said that, Silverlight 5 will have greater support for 3d thanks to its XNA integration
EDIT: It seems I was rather fast to judge - the official 3d support fo flash (aka molehill) is still under incubation, but flash still has some impressive community-based libraries for 3d still making it (IMO) the more mature solution (Add to that it's larger cross-platform and user support).
This depends on what is a target market of your program.
Silverlight: is C#, 3D modelling is possible, there is even port of Silverlight of Mono MoonLight, but basically yuo should consider that your clients in this case will be Windows OS owners, and considering a OSes destribution information from Os destribution worldwide, you're on winner train.
So looking on your tags: C#, I would say go for Silverlight.
There is another really good product for 3D in browsing, like WebGL, but it's currently not supported of IE, for security concerns, which doesn't mean that will not be supported in future, but.. you know, for now it's not. Here is explanation: Microsoft not going to support WebGL. If you are ready to say "no" to IE (at least for now), it's a good choice.
So for now, I personally, would suggest to use Silverlight 3D. Just google "Silbverlight 3D samples" and you will be given plenty of samples available on inetrnet.
EDIT
Good comparing article on CodeProject
Hope this helps.
Regards.
Flash doesn't really have 3D graphics support, although there are a couple of libraries available. Silverlight also doesn't do 3D. So, really, the answer is "none of the above work all that well."
If you're willing to force your clients to use a current browser, you can use HTML5 and WebGL to render 3D objects without too much trouble.

How do I make a video cut-scene with XNA 4.0?

I have transitions in my game and they work fine, but I want to now play a video cut-scene between certain transitions but can't find out how to do it.
EDIT Actually I just found out that XNA 4.0 has video playing capabilities now, they just have to be in .wmv format. Thanks for any help.
You might want to check out http://xnadsplayer.codeplex.com, saw that linked in a few different places.

Skeleton tracking with 2D camera

I'm trying to use a 2D camera to recognize the device/object a user is pointing at so I was looking for a skeleton tracking software using a 2D camera in order to be able to do that. Is there any open source project that deals with skeleton tracking using 2D cameras?
(I've gone through tons of links on Google and it seems like most of what's there is just research papers but no actual open source projects)
Thanks!
Skamleton could be an option. It's an open-source project in early stages, but it implements a background subtractor, a skin color classifier, blob tracking and face classification. There is a demo on YouTube.
Note Skamleton use simple cameras, not RGB-D (depth) cameras as the Kinectic system (Kinect uses a structured light device from PrimSense).
It seems there's kind of a pre-release of a SDK for Kinect from Microsoft. Perhaps this might be helpful for you:
http://nuigroup.com/forums/viewthread/11249/
(Although I think this won't be Open Source. But since you are using c#, a Microsoft SDK might be ok for you.)
This seems like an old post, but in case anyone is still looking Extreme Reality uses a regular webcam and does skeleton tracking. It's not open source, but I've played around with it a bit and it does seem to be fairly robust.
http://www.xtr3d.com/developers/resources/

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