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tmack8968

XAudio2 - Playing Ogg, Mp3, Midi, etc.

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Hello,

I'm using SlimDX with C# - and I am having trouble with audio. Right now I am using Irrklang for my audio, but I want to switch it over to lessen the need for more dependencies. My issue is the SlimDX doesn't include many "examples", in fact, it's just one basic example that shows you how to load a WAV. I'd like to the ability to load OGG, WMA, or MIDI. Preferably, I want to load OGG.

What do I need to do? From setting up - to playing the sound. I can't find any good resource sonline.

Also - should "sounds" (effects: rain, walking, etc) be preloaded into memory and music be streamed from the harddisk?

And finally - if there is a C# Alternative that I can implement right into my code, that would be great. Something similar to Irrklang, but written in pure C# and doesn't depend on anything else, please let me know!

Thanks!
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If you want to use XAudio you need to decode your OGG files. This can be done using FFMPEG or another decoder. If your is application is not commercial you could also use BASS.Net.
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For Ogg try this:[url="http://www.codeproject.com/Articles/11032/NET-Implementation-of-an-Ogg-Vorbis-Player"]http://www.codeproje...g-Vorbis-Player[/url]

"What do I need to do?"
Go to the link I gave you, download the source files and extract them. You'll have two directories: VS2003 and VS2005. Go to the latter and access OggPlayer Demo and pick-up the file TgPlayOgg_vorbisfile.dll and copy it in the same directory where you have the executable for your C# program. This dll file is actually a native C++ library and you'll have to import its functions in your C# application. Here is how you do it: Open the OggPlayer Sample directory, locate the file NativeMethods.cs and copy the code from it in a code file in your application. What that code does is that it imports the native functions from the dll into your managed application and now you'll be able to use them as if they are part of your code. An important note here: in order for this to work you'll have to check Allow Unsafe Code in your project's properties. Next take a look at the file OggPlayer.cs from that same directory to find out how to play streaming music. Sound effects are played by writing the decoded PCM data entirely in the sound buffer.

"Also - should "sounds" (effects: rain, walking, etc) be preloaded into memory and music be streamed from the harddisk?"
Sound effects are short enough and small enough even decoded into PCM that they can fit in the memory. Music, however, in decoded PCM format can be extremely large, so it has to be streamed. You can stream it either from the file located on the harddsik, or from a copy of that file loaded in a memory stream. I use the latter.
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