EP 1964443 A2 20080903 - LOW-COMPLEXITY AUDIO MATRIX DECODER
Title (en)
LOW-COMPLEXITY AUDIO MATRIX DECODER
Title (de)
AUDIOMATRIX-DECODER MIT VERRINGERTER KOMPLEXITÄT
Title (fr)
DECODEUR AUDIO MATRICIEL DE FAIBLE COMPLEXITE
Publication
Application
Priority
- US 2006044447 W 20061116
- US 74156705 P 20051202
Abstract (en)
[origin: WO2007067320A2] Deriving n audio output signals from m audio input signals, where m and n are positive whole integers and the n audio output signals are derived using an adaptive matrix or matrixing process responsive to one or more control signals, which matrix or matrixing process produces n audio signals in response to m audio signals, and (b) deriving a plurality of time- varying control signals from the m audio input signals, wherein the control signals are derived from the m input audio signals using (i) a processor or process that produces a plurality of directional dominance signals in response to the m audio input signals, at least one directional dominance signal relating to a first directional axis and at least one other directional dominance signal relating to a second directional axis, and (iÊ) a processor or process that produces the control signals in response to the directional dominance signals.
IPC 8 full level
H04S 3/02 (2006.01)
CPC (source: EP)
H04S 3/02 (2013.01)
Citation (search report)
See references of WO 2007067320A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2007067320 A2 20070614; WO 2007067320 A3 20071101; CN 101336563 A 20081231; CN 101336563 B 20120215; EP 1964443 A2 20080903; EP 1964443 B1 20110921; HK 1123663 A1 20090619; TW 200746872 A 20071216; TW I420918 B 20131221
DOCDB simple family (application)
US 2006044447 W 20061116; CN 200680051973 A 20061116; EP 06837740 A 20061116; HK 09101179 A 20090210; TW 95138970 A 20061023