Headset for Separation of Speech Signals in a Noisy Environment
First Claim
1. A headset, comprising:
- a housing;
an ear speaker;
a first microphone connected to the housing;
a second microphone connected to the housing; and
a processor coupled to the first and the second microphones, and operating the steps of;
receiving a first speech plus noise signal from the first microphone;
receiving a second speech plus noise signal from the second microphone;
providing the first and second speech plus noise signals as inputs to a signal separation process;
generating a speech signal; and
transmitting the speech signal.
6 Assignments
0 Petitions
Accused Products
Abstract
A headset is constructed to generate an acoustically distinct speech signal in a noisy acoustic environment. The headset positions a pair of spaced-apart microphones near a user'"'"'s mouth. The microphones each receive the user s speech, and also receive acoustic environmental noise. The microphone signals, which have both a noise and information component, are received into a separation process. The separation process generates a speech signal that has a substantial reduced noise component. The speech signal is then processed for transmission. In one example, the transmission process includes sending the speech signal to a local control module using a Bluetooth radio.
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Citations
42 Claims
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1. A headset, comprising:
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a housing; an ear speaker; a first microphone connected to the housing; a second microphone connected to the housing; and a processor coupled to the first and the second microphones, and operating the steps of; receiving a first speech plus noise signal from the first microphone; receiving a second speech plus noise signal from the second microphone; providing the first and second speech plus noise signals as inputs to a signal separation process; generating a speech signal; and transmitting the speech signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A wireless headset, comprising:
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a housing; a radio; an ear speaker; a first microphone connected to the housing; a second microphone connected to the housing; and a processor operating the steps of; receiving a first signal from the first microphone; receiving a second signal from the second microphone; detecting a voice activity; generating a control signal responsive to detecting the voice activity; generating a speech signal using a signal separation process; and transmitting the speech signal to the radio. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A Bluetooth headset, comprising:
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a housing constructed to position an ear speaker to project sound into a wearer'"'"'s ear; at least two microphones on the housing, each microphone generating a respective transducer signal; a processor arranged to receive the transducer signals, and operating a separation process to generate a speech signal.
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33. A wireless headset system comprising:
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an ear speaker; a first microphone generating a first transducer signal; a second microphone generating a second transducer signal; a processor; a radio; the processor operating the steps of; receiving the first and second transducer signals; providing the first and second transducer signals as inputs to a signal separation process; generating a speech signal; and transmitting the speech signal. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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42. A headset, comprising:
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a housing; an ear speaker; a first microphone connected to the housing and having a spatially defined volume where speech is expected to be generated; a second microphone connected to the housing having a spatially defined volume where noise is expected to be generated; and a processor coupled to the first and the second microphones, and operating the steps of; receiving a first signal from the first microphone; receiving a second signal from the second microphone; providing the first and second speech plus noise signals as inputs to a Generalized Sidelobe Canceller; generating a speech signal; and transmitting the speech signal.
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Specification