Microphone position and speech level sensor
First Claim
Patent Images
1. A telephone headset adapter, comprising:
- a headset interface adapted to couple a headset to a telephone, and to receive a speech signal from a microphone on the headset; and
a speech level sensing circuit coupled to the headset interface to receive the speech signal from the headset interface, and adapted to determine whether a speech level at the microphone is at an improper level, and provide an output signal in response to the occurrence of an improper speech level.
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Abstract
Improper microphone position and speech level on a telephone headset is sensed by comparison of a speech envelope to multiple signal threshold levels. A first threshold is used to determine whether a headset user is talking. A second threshold is used to determine whether a signal level at the microphone is sufficiently strong for proper communication. An indicator is activated when the user is talking and the signal level is too weak. Typically, a weak signal is caused by a mispositioned microphone or a user talking too softly.
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Citations
29 Claims
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1. A telephone headset adapter, comprising:
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a headset interface adapted to couple a headset to a telephone, and to receive a speech signal from a microphone on the headset; and
a speech level sensing circuit coupled to the headset interface to receive the speech signal from the headset interface, and adapted to determine whether a speech level at the microphone is at an improper level, and provide an output signal in response to the occurrence of an improper speech level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for detecting an improper speech signal level at a microphone, the method comprising:
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receiving a speech signal from the microphone;
determining whether a microphone user is talking by comparing the speech signal level to a noise threshold;
determining whether the speech signal level is improper by comparing the speech signal level to an audible level; and
activating an indicator when the speech signal level is between the noise threshold and the audible threshold. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification