METHOD AND SYSTEM FOR SPEECH ENHANCEMENT IN A ROOM
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Abstract
A method of speech enhancement in a room (10), having the steps of: determining acoustic parameters of the room and a loudspeaker arrangement (24) located in the room, capturing audio signals from a speaker'"'"'s voice with a microphone (12), and processing the captured audio signals with an audio signal processing unit (20). The audio signals are filtered by applying a selected frequency response curve to the audio signals, generating sound according to the processed audio signals by the loudspeaker arrangement, determining a value indicative of the overall gain applied to the captured audio signals, and selecting a frequency response curve to be applied to the captured audio signals according to the overall gain value and the acoustic parameters.
131 Citations
69 Claims
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1-34. -34. (canceled)
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35. A method of speech enhancement in a room, comprising the steps of:
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determining acoustic parameters of the room and a loudspeaker arrangement located in the room, capturing audio signals from a speaker'"'"'s voice with a microphone, processing the audio signals captured by the microphone with an audio signal processing unit, the audio signals being filtered by applying a selected frequency response curve to the audio signals captured, generating sound according to the processed audio signals with the loudspeaker arrangement, determining a value indicative of total gain applied to the captured audio signals, and selecting a frequency response curve according to said total gain value and said acoustic parameters and applying the selected curve to the captured audio signals. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A system for speech enhancement in a room, comprising:
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a microphone for capturing audio signals from a speaker'"'"'s voice, an audio signal processing unit for processing the audio signals captured by the microphone in a manner so as to filter the audio signals by applying a selected frequency response curve to the audio signals, a loudspeaker arrangement to be located in the room for generating sound according to the processed audio signals, means for estimating acoustic parameters of the room loudspeaker arrangement in the room, means for determining a value indicative of a total gain applied to the captured audio signals, wherein the audio signal processing unit comprises means for selecting and applying a frequency response curve to the captured audio signals according to the total gain value and said acoustic parameters. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification