Method and apparatus for speech dereverberation based on probabilistic models of source and room acoustics
First Claim
Patent Images
1. A speech dereverberation apparatus comprising:
- a likelihood maximization unit that determines a source signal estimate that maximizes a likelihood function, the determination being made with reference to an observed signal, an initial source signal estimate, a first variance representing a source signal uncertainty, and a second variance representing an acoustic ambient uncertainty.
1 Assignment
0 Petitions
Accused Products
Abstract
Speech dereverberation is achieved by accepting an observed signal for initialization (1000) and performing likelihood maximization (2000) which includes Fourier Transforms (4000).
-
Citations
26 Claims
-
1. A speech dereverberation apparatus comprising:
a likelihood maximization unit that determines a source signal estimate that maximizes a likelihood function, the determination being made with reference to an observed signal, an initial source signal estimate, a first variance representing a source signal uncertainty, and a second variance representing an acoustic ambient uncertainty. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
14. A speech dereverberation method comprising:
determining a source signal estimate that maximizes a likelihood function, the determination being made with reference to an observed signal, an initial source signal estimate, a first variance representing a source signal uncertainty, and a second variance representing an acoustic ambient uncertainty. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
Specification