METHOD AND APPARATUS FOR GENERATING A SPEECH SIGNAL
First Claim
1. An apparatus for generating a speech signal, the apparatus comprising:
- microphone receivers for receiving microphone signals from a plurality of microphones;
a comparator arranged to, for each microphone signal, determine a speech similarity indication indicative of a similarity between the microphone signal and non-reverberant speech, the comparator being arranged to determine the similarity indication in response to a comparison of at least one property derived from the microphone signal to at least one reference property for non-reverberant speech; and
a generator for generating the speech signal by combining the microphone signals in response to the similarity indications,wherein the comparator is further arranged to determine the similarity indication for a first microphone signal in response to a comparison of at least one property derived from the microphone signal to reference properties for speech samples of a set of non-reverberant speech samples.
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Accused Products
Abstract
An apparatus comprises microphone receivers (101) which receive microphone signals from a plurality of microphones (103). A comparator (105) determines a speech similarity indication indicative of a similarity between the microphone signal and non-reverberant speech for each microphone signal. The determination is in response to a comparison of a property derived from the microphone signal to a reference property for non-reverberant speech. In some embodiments, the comparator (105) determines the similarity indication by comparing to reference properties for speech samples of a set of non-reverberant speech samples. A generator (107) generates a speech signal by combining the microphone signals in response to the similarity indications. In many embodiments, the apparatus may be distributed over a plurality of devices each containing a microphone, and the approach may determine the most suited microphone for generating the speech signal.
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Citations
15 Claims
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1. An apparatus for generating a speech signal, the apparatus comprising:
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microphone receivers for receiving microphone signals from a plurality of microphones; a comparator arranged to, for each microphone signal, determine a speech similarity indication indicative of a similarity between the microphone signal and non-reverberant speech, the comparator being arranged to determine the similarity indication in response to a comparison of at least one property derived from the microphone signal to at least one reference property for non-reverberant speech; and a generator for generating the speech signal by combining the microphone signals in response to the similarity indications, wherein the comparator is further arranged to determine the similarity indication for a first microphone signal in response to a comparison of at least one property derived from the microphone signal to reference properties for speech samples of a set of non-reverberant speech samples. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14)
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8. (canceled)
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15. A method of generating a speech signal, the method comprising:
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receiving microphone signals from a plurality of microphones; for each microphone signal, determining a speech similarity indication indicative of a similarity between the microphone signal and non-reverberant speech, the similarity indication being determined in response to a comparison of at least one property derived from the microphone signal to at least one reference property for non-reverberant speech; and generating the speech signal by combining the microphone signals in response to the similarity indications, wherein the similarity indication is further determined for a first microphone signal in response to a comparison of at least one property derived from the microphone signal to reference properties for speech samples of a set of non-reverberant speech samples.
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Specification