User Guide

FXAlg #965: SRS
Algorithm Reference-169
FXAlg #965: SRS
Licensed ÒSound Retrieval System¨Ó or SRS
TM
effect
Allocation Units: 1
The SRS
TM
algorithm has been licensed from SRS Labs, Inc. The following is from an SRS Labs press release:
SRS, the Sound Retrieval System, is based on the human hearing system. It produces a fully immersive, three-
dimensional sound image from any audio source with two or more standard stereo speakers. Whether the signal is
mono, stereo, surround sound or encoded with any other audio enhancement technology, SRS expands the material
and creates a realistic, panoramic sound experience with no Òsweet spotÓ or centered listening position. SRS is
single-ended, requiring no encoding or decoding, and uses no artificial signal manipulation such as time delay or
phase shift to produce its natural, true-to-life sound image.
The four SRS parameters control the ambience of the image, and may have different optimal settings depending on
the amount of stereo content in the inputs. To match the optimal settings specified by SRS Labs, the bass and treble
gains should be set to 0 dB. This algorithm will have no effect on mono signals.
Parameters:
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In/Out When set to ÒInÓ the effect is active; when set to ÒOutÓ the effect is bypassed.
Out Gain The overall gain or amplitude at the output of the effect. Out Gain is not applied to the
signal when the effect is bypassed.
Center The amount of Òcenter channelÓ can be varied with this control.
Space The width of the image is controlled with this parameter.
Bass Gain The amount of ambience added to the Bass frequencies in the signals. A setting of 0 dB
gives a best match to the optimizations of SRS Labs.
Treb Gain The amount of ambience added to the Treble frequencies in the signal. A setting of 0 dB
gives a best match to the optimizations of SRS Labs.
In/Out In or Out Out Gain Off, -79.0 to 24.0 dB
Center Off, -79.0 to 24.0 dB Bass Gain -79.0 to 24.0 dB
Space Off, -79.0 to 24.0 dB Treb Gain -79.0 to 24.0 dB