Enhancing the intelligibility of received speech in a noisy environment
First Claim
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1. A method of controlling volume of a received signal comprising:
- computing an automatic gain control (AGC) gain;
computing a weighted dynamic range compression (DRC) gain; and
determining a total automatic volume control (AVC) gain from by combining an additional gain with the AGC gain and the weighted DRC gain.
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Abstract
A device receives a signal that includes human-interpretable audio information. The device automatically adjusts the volume of the audio information at the received end. The volume control is determined by an automatic volume control gain, which is calculated as a function of the automatic gain control gain, a weighted dynamic range compression gain, and a weighted constant gain.
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Citations
20 Claims
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1. A method of controlling volume of a received signal comprising:
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computing an automatic gain control (AGC) gain;
computing a weighted dynamic range compression (DRC) gain; and
determining a total automatic volume control (AVC) gain from by combining an additional gain with the AGC gain and the weighted DRC gain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. The device comprising:
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a receiver which receives a transmitted signal;
a processor which determines the AGC gain, the DRC gain, a weighted constant gain, wherein the processor combines the AGC gain, the DRC gain, and the weighted constant gain to obtain an AVC gain, and a volume control which adjusts a volume of the received signal based on the AVC gain. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method comprising:
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computing an AVC gain based on the AGC gain, the DRC gain, and a constant gain; and
adjusting a volume based on the AVC gain. - View Dependent Claims (20)
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Specification