Audio signal processing for speech communication
First Claim
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1. A method comprising:
- at a first device, receiving from a remote device a signal that comprises human-interpretable audio information;
detecting sound at the first device;
analyzing the detected sound to determine if an intermittent component is present; and
if the intermittent component is present, altering the signal so that the audio information is more easily human-interpretable when the signal is converted to sound.
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Abstract
A device receives a signal that includes human-interpretable audio information. The device detects sound locally and analyzes it to determine if an intermittent component is present. If the intermittent component is present, the received signal is altered so that the audio information is more easily human-interpretable when the signal is performed. The device can be a portable telephone. The intermittent component can be detected, for example, in music.
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Citations
33 Claims
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1. A method comprising:
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at a first device, receiving from a remote device a signal that comprises human-interpretable audio information; detecting sound at the first device; analyzing the detected sound to determine if an intermittent component is present; and if the intermittent component is present, altering the signal so that the audio information is more easily human-interpretable when the signal is converted to sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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at a device, receiving a signal that comprises audio information; detecting sound at the device; storing values related to energy or amplitude of the detected sound, each of the values corresponding to an interval of the detected sound; analyzing the values to determine if an intermittent component is present; altering the signal if the intermittent component is determined to be present; and rendering the altered signal as sound. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A device comprising:
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a receiver, configured to receive a signal representing audio information from a wireless transmission; a signal modulator, configured to alter the signal in response to a noise estimate; a sound input unit that detects sound at the device; and a detector, configured to analyze sound, detected by the sound input unit, for an intermittent component of regular periodicity, generate a noise estimate for the intermittent component when the intermittent component is detected, and communicate the noise estimate to the signal modulator. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A device comprising:
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a memory store for storing information about levels of a signal received from a remote location during a series of time intervals, wherein the signal represents sound at the remote location; and a processor, configured to modulate the signal to increase the amplitude of certain audio information in the received signal if it is determined that an intermittent component is present in sound detected at the device as determined from the levels of the signal stored in the memory store. - View Dependent Claims (32, 33)
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Specification