CMI8738-MX Datasheet, PDF (25/32 Pages) C-Media Electronics – PCI-6CH C3DX series /PCI-Based HRTF 3D Extension Positional Audio Chip

CMI8738
PCI-6CH C3DX series /PCI-Based HRTF 3D Extension Positional Audio Chip
9.4 HRTF 3D Positional 3D (C-Media 3D)
Only this sound processing technology can be called real 3D manifestation, as 3D usually refers to the
three dimensions of X, Y and Z. This technology allows people to pin-point the location of sound in
the real world (up/down, left/right, front/back)using only two speakers or a pair of headphones. This
technology also supports interactive 3D applications to get a real-time placement of sounds via API
(application programming interface) such as Microsoft DirectSound3DTM. We can also use this
technology to simulate Multi-speaker Surround with two physical speakers to deliver five “virtual"
speakers in the air, surrounding the listener and creating home theater sound environment. This is the
most economical and the easiest solution to people who would like to get high performance surround
sound but don’t want to spend money in adding extra speakers.
A physical
speaker
A virtual
speaker
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