×

Method and apparatus to create a sound field

  • US 20040151325A1
  • Filed: 03/22/2004
  • Published: 08/05/2004
  • Est. Priority Date: 03/27/2001
  • Status: Active Grant
First Claim
Patent Images

1. A method of creating a sound field comprising a plurality of channels of sound using an array of output transducers, said method comprising:

  • for each channel, selecting a first delay value in respect of each output transducer, said first delay value being chosen in accordance with the position in the array of the respective transducer;

    selecting a second delay value for each channel, said second delay value being chosen in accordance with the expected travelling distance of sound waves of that channel from said array to a listener;

    obtaining, in respect of each output transducer, a delayed replica of a signal representing each channel, each delayed replica being delayed by a value having a first component comprising said first delay value and a second component comprising said second delay value.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×