Rapture3D is an OpenAL driver that can produce 3D headphone surround sound using HRTFs. It has several HRTF profiles to choose from. This video demonstrates the "Amber" and "Yellow" profiles. I've used a program called "EFX10Show" to move some sound sources around the listener.

Most games only produce flat, 2D sound for stereo headphones but a game that uses Rapture3D will be able to produce a much more realistic, 3D sensation of sound localization. Notice how it can simulate sound sources from all around you. The difference between in-front and behind, as well as above and below, is quite clear.

Rapture3D is made by Blue Ripple Sound.
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This video was created with the "User" version of Rapture3D 12.6.5. The speaker layout was set to "Headphone Stereo (Compat.)".

0:00 - Introduction
0:16 - Amber (Sound: Washing hands)
1:04 - Yellow (Sound: Washing hands)
1:50 - Amber (Music: Save Me)
2:37 - Yellow (Music: Save Me)

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