Making sound like it's coming from behind

[Ruriko]

Here's the video clip http://www.mediafire.com/download.php?ga4yeijtcmj
At 0:13 the rockets fly behind the rock and then it crashes. How can I make it sound like the rockets are coming from behind the rock? and you know when it crashes the rocks start falling how can I make it sound like that?

Please note I use Audacity & Adobe SoundBooth

Here's the bomb sound effect http://www.mediafire.com/download.php?vzynijkcuu3
This is the rock slide sound effect http://www.mediafire.com/download.php?oke1nzzgtte
This is the rocket sound effect http://www.mediafire.com/download.php?yhzmmn2iylm
This is the flying rockets sound effect http://www.mediafire.com/download.php?mqijwzm1qlk

[jimmsch]

To create a DD or DTS 5.1 sound file you need six seperate mono .wav sound files, then you need a DD or DTS software encoder to mux them. I don't think Audacity or Adobe Soundbooth have the rights to DD or DTS. Minnetonka (http://www.minnetonkaaudio.com/index.php?option=com_content&view=article&id=56&Itemid=74&lang=en) makes probably the best.

You will probably be better off with AC3 Tools Pro (http://www.mediatwins.com/products/ac3tools_pro/index.html) (MUCH less $$)

Here is a bit of a tutorial.
http://www.scribd.com/doc/2153277/Converting-Stereo-to-DTS

Most likely you will have to convert your sounds to .wav, if they aren't already. They should be all the same bitrate and length (add silence where needed to extend length). You will also need to create 2 more mono files to fill in the gaps ..just make them silent.

This should be enough to get you started...good luck