No. 3D soundcards are omni directional
3D sound is omnidirectional
Sound Card A sound card is an expansion card which is used to send and recieve the sound signals and installed in a PCI slot of the motherboard. Graphics Card Graphics cards are the video cards which are used to produce the images you see on a monitor screen and it is installed on the motherboard as an extra component and used to graphical data with a high quality colour display and clear appearance.
3D sound is a type of surround sound That is produced by two speakers.
You can't.
Transformers are inherently bidirectional.
Relays are bidirectional devices.
ihave no idea.
Sound Cards , Vga Cards , Internt Cards
1-standard sound cards 2-external sound adapters 3-motherboard sound chips
Audio quality (or fidelity) and how and what we perceive good sound to be is very subjective to humans. Most sound cards that are regarded as "the best" in the consumer or in the semi-professional market are designed to accurately reproduce the audio from the source (the computer,cd player, mp3, microphone) as accurately as possible without adding any modifications (artefacts) to the sound. The idea is we hear the recording as the recording engineer intended. Most 3D sound cards create the 3D spacial effect by using phase cancellation tricks, where they take a small amount of the audio from one channel, invert the phase and put it through the other channel. This cancellation of frequencies gives the listener the physco-acoustic effect of sound coming further out the speakers, perhaps even from behind the listener at some frequencies. This effect maybe regarded by some people as pleasing and desirable but by others (myself included) as a distortion to the sound and not something I would like to add to the sound. Is 3D sound card the best audio? - It you think it is...it is! Human hearing is very subjective.
Data flow is always bidirectional my friend, don't confuse.
Carte 3D can either refer to a method by which paper is layered to produce a 3-dimensional effects for cards and scrap-booking ("3D Cards"); or, alternatively to a method of producing 3-dimensional terrain maps using clay, rubber, papier-mache or molded plastics. ("3D Maps")