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SRS. Sound Retrieval System (SRS) is a patented psychoacoustic 3D audio processing technology originally invented by Arnold Klayman in the early 1980s. [citation needed] The SRS technology applies head-related transfer functions (HRTFs) to create an immersive 3D soundfield using only two speakers, widening the "sweet spot", creating a more spacious sense of ambience, and producing strong ...
3D Positional Audio effects emerged in the 1990s in PC and video game consoles. 3D audio techniques have also been incorporated in music and video-game style music video arts. True representation of the elevation level for 3D loudspeaker reproduction become possible by the Ambisonics and wave field synthesis (WFS) principle.
QSound is essentially a filtering algorithm. It manipulates timing, amplitude, and frequency response to produce a binaural image.Systems like QSound rely on the fact that a sound arriving from one side of the listener will reach one ear before the other and that when it reaches the furthest ear, it is lower in amplitude and spectrally altered due to obstruction by the head.
SRS Labs, Inc. was a Santa Ana, California-based audio technology engineering company that specialized in audio enhancement solutions for wide variety of consumer electronic devices. Originally a part of Hughes Aircraft Company , [ when? ] the audio division developed the Sound Retrieval System technology, and in 1993 was separated off to form ...
These methods of reconstructing three-dimensional sound are used to recreate sounds to match natural environments and provide spatial cues of the sound source. They also see applications in creating 3D visualizations on a sound field to include physical aspects of sound waves including direction, pressure, and intensity. This technology is used ...
A general way to implement 3d sound localization is to use the HRTF(Head-related transfer function). First, compute HRTFs for the 3D sound localization, by formulating two equations; one represents the signal of a given sound source and the other indicates the signal output from the robot head microphones for the sound transferred from the source.
From the original speaker-targeted QSound 3D process used in producer-side applications, QSound Labs developed a suite of positional and enhancement spatial audio technologies, including positional audio for stereo speakers, multi-channel speaker systems and stereo earphones; stereo expansion, and virtual surround, under several technology names.
An application of 3D sound synthesis is the sense of presence in a virtual environment, by producing more realistic environments and sensations in games, teleconferencing systems, and tele-ensemble systems. 3D sound can also be used to help those with sensory impairments, such as the visually impaired, and act as a substitute for other sensory feedback.