Audio and Acoustics Research

HOME COMPANY RESEARCH & DEVELOPMENT PRODUCTS Consumer Audio Pro Audio & Broadcast Microphone Technologies Stereo to 5.1 Surround Upmix Surround Transmission
as Stereo Signal Voice & Telephony SERVICES CONTACT US
All content can become surround content.


Stereo to 5.1 Surround Upmix
Time-frequency signal analysis, spatial hearing modeling, auditory filterbanks, and spatial synthesis processing convert stereo signals to discrete-like 5.1 surround. Additionally, matrix surround stereo signals (Lt, Rt) are converted to discrete-like surround with a 360 degree spatial image. The high channel separation enables discrete-like quality and unproblematic re-downmix to stereo. This technology enables cost effective upgrade of stereo content and services to surround.
 
Stereo to 5.1  
Specifications: Stereo to 5.1 Surround Upmix
Surround format
Upmix modes
Sound stage width
Channel separation
LFE cutoff
Algorithmic Delay
 5.1 and 7.1
music, matrix, auto
60 to 360 degrees
up to 40 dB
120 Hz
3 - 15 ms
 

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The given specifications are subject to change without notice.