Invention Application
- Patent Title: METHOD OF REPRODUCING SOUND
- Patent Title (中): 再现声音的方法
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Application No.: PCT/GB1994000799Application Date: 1994-04-15
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Publication No.: WO1994024835A1Publication Date: 1994-10-27
- Inventor: ADAPTIVE AUDIO LIMITED , NELSON, Philip, Arthur
- Applicant: ADAPTIVE AUDIO LIMITED , NELSON, Philip, Arthur
- Assignee: ADAPTIVE AUDIO LIMITED,NELSON, Philip, Arthur
- Current Assignee: ADAPTIVE AUDIO LIMITED,NELSON, Philip, Arthur
- Priority: GB9307986.1 19930417
- Main IPC: H04S03/02
- IPC: H04S03/02
Abstract:
A method of reproducing sound comprises creating a sound recording by recording the sound received by individual sensors of a compact cluster of at least three spaced-apart sound sensors which are located in a localised region of the recording space sound field which is desired to be subsequently reproduced, and subsequently reconstructing a representation of the original sound field in a localised region (S, Figure 2) of the listening space corresponding to said localised region of the recording space, by arranging at least three sound sources (Sources 1 to 4, Figure 10) in a spaced-apart distribution which surrounds the centre of the listening space localised region, the reproduction being aimed primarily at reproducing the direction of propagation of the sound waves in the localised region of the recording space, the vector of signals input to the sound sources being produced by subjecting the vector of recorded outputs of the sound sensors to a matrix (H(z)) of linear filters which have been derived using a least squares technique.
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