In-situ voice reinforcement system
First Claim
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1. A voice reinforcement system, comprising:
- a reflective boundary to reflect a voice signal from a speaker toward a listening location, the listening location spaced apart from a location of the speaker;
a microphone, located between the speaker and the reflective boundary, to convert the voice signal to an intermediate electrical signal, where the microphone is spaced apart from the reflective boundary;
a filter to extract a portion of the intermediate electrical signal representing a consonant sound from the voice signal to an extracted signal, the extracted signal based on frequency content of the intermediate electrical signal;
an amplifier to amplify the extracted signal to an amplified signal; and
a converter to convert the amplified signal into an audible signal that is directed toward the listening location and is substantially in-phase with a portion of the reflected voice signal to generate a reinforced signal formed from a summation of a portion of the amplified signal and the portion of the reflected voice signal.
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Abstract
A voice reinforcement system extracts a portion of a converted speech signal and redirects it towards a listening area where it may be added with the original signal. The system includes a speech input, a filter, and a converter. The speech input generates an intermediate signal from a speech signal. The filter extracts a portion of the signal extending above a cutoff frequency. The converter converts the filtered signal to an aural signal directed towards a listening area.
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Citations
24 Claims
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1. A voice reinforcement system, comprising:
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a reflective boundary to reflect a voice signal from a speaker toward a listening location, the listening location spaced apart from a location of the speaker; a microphone, located between the speaker and the reflective boundary, to convert the voice signal to an intermediate electrical signal, where the microphone is spaced apart from the reflective boundary; a filter to extract a portion of the intermediate electrical signal representing a consonant sound from the voice signal to an extracted signal, the extracted signal based on frequency content of the intermediate electrical signal; an amplifier to amplify the extracted signal to an amplified signal; and a converter to convert the amplified signal into an audible signal that is directed toward the listening location and is substantially in-phase with a portion of the reflected voice signal to generate a reinforced signal formed from a summation of a portion of the amplified signal and the portion of the reflected voice signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification