Patent · US Active

Efficient filter for artificial ambience

US7876909B2 · kind B2 · utility

2Cited by
2References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 13, 2005
Grant dateJan 25, 2011
Priority date
Expiry dateAug 24, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04S7/305
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.