Virtual audio processing for loudspeaker or headphone playback

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement

Reexamination Certificate

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Details

C381S027000

Reexamination Certificate

active

08000485

ABSTRACT:
There are provided methods and an apparatus for processing audio signals. According to one aspect of the present invention there is included a method for processing audio signals having the steps of receiving at least one audio signal having at least a center channel signal, a right side channel signal, and a left side channel signal; processing the right and left side channel signals with a first virtualizer processor, thereby creating a right virtualized channel signal and a left virtualized channel signal; processing the center channel signal with a spatial extensor to produce distinct right and left outputs, thereby expanding the center channel with a pseudo-stereo effect; and summing the right and left outputs with the right and left virtualized channel signals to produce at least one modified side channel output.

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AES Convention Paper “Center-Channel Processing In Virtual 3-D Audio Reproduction over Headphones or Loudspeakers.” Presented at the 128th Convention, May 22-25, 2010, London UK.

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