Patent ID: 8700387
Filing Date: 2014-04-15
Classification: G10L

Abstract:
1. A filterbank comprising: a first component configured to receive a first plurality of coefficients, wherein said first plurality of coefficients are associated with a first audio format; a second component coupled to said first component, wherein said second component is configured to generate a second plurality of coefficients based upon said first plurality of coefficients, wherein said second plurality of coefficients are associated with a second audio format, wherein said second component is further configured to generate said second plurality of coefficients using at least one operation performed in the frequency domain, and wherein said second component is further configured to generate said second plurality of coefficients by performing at least one operation associated with summation and at least one operation associated with low-pass filtering, and wherein said second component is further configured to generate said second plurality of coefficients by performing said at least one operation associated with summation between a plurality of operations associated with upsampling; and a third component coupled to the second component, wherein said third component is configured to output said second plurality of coefficients.