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AssigneeSpeech Technology & Applied Research Corporation
InventorsRichard Goldhor, Keith Gilbert, Joel MacAuslan, Karen Payton
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In environments (such as acoustic and bioelectrical environments) characterized by multiple simultaneous sources, effective blind source separation from sensor response mixtures becomes difficult as the number of sources increases—especially when the true number of sources is both unknown and changing over time. However, in some environments, non-sensor information can provide useful hypotheses for some sources. Embodiments of the present invention provide an adaptive filtering architecture for validating such source hypotheses, extracting an estimated representation of source signals corresponding to valid hypotheses, and improving the separation of the remaining “hidden” source signals from the sensor response mixtures.
A method for modifying at least one input signal to a source separation module, the method performed by at least one computer processor executing computer program instructions stored on at least one non-transitory computer-readable medium, the method for use in a signal processing environment comprising a space in which a plurality of contributing signal sources and at least one sensor are placed and in which the signal contributed by a source propagates to the at least one sensor, which responds to a mixture of the propagated signals, the method comprising:
A non-transitory computer-readable medium having computer program instructions stored thereon, wherein the computer program instructions are executable by a computer processor to perform a method for modifying at least one input signal to a source separation module, the method for use in a signal processing environment comprising a space in which a plurality of contributing signal sources and at least one sensor are placed and in which the signal contributed by a source propagates to the at least one sensor, which responds to a mixture of the propagated signals, the method comprising:
Dependencies are inferred from the claim text.