AUDIO SIGNAL PROCESSING FOR CERTIFICATION ENHANCEMENT IN A HANDHELD WIRELESS COMMUNICATIONS DEVICE
First Claim
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1. A handheld wireless communications device having an adjustable volume setting, comprising:
- an uplink audio processor; and
a downlink audio processor, at least one of the uplink and downlink audio processors has a noise suppressor, the noise suppressor to attenuate its output signal in accordance with a delay parameter, the delay parameter controls how much the onset of said attenuation is delayed,wherein the delay parameter is automatically set to indicate a short delay when the communications device is at a higher volume setting, and a long delay when the device is at a lower volume setting.
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Abstract
A handheld wireless communications device has an adjustable volume setting. The communications device also has an uplink audio processor and a downlink audio processor. One (or both) of the audio processors contains a noise suppressor. The noise suppressor attenuates its output signal in accordance with a delay parameter. The delay parameter controls how much the onset of the attenuation is delayed. The delay parameter is automatically set to indicate a short delay when the communications device is at a high volume setting, and a long delay when the device is at a low volume setting. Other embodiments are also described and claimed.
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Citations
17 Claims
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1. A handheld wireless communications device having an adjustable volume setting, comprising:
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an uplink audio processor; and a downlink audio processor, at least one of the uplink and downlink audio processors has a noise suppressor, the noise suppressor to attenuate its output signal in accordance with a delay parameter, the delay parameter controls how much the onset of said attenuation is delayed, wherein the delay parameter is automatically set to indicate a short delay when the communications device is at a higher volume setting, and a long delay when the device is at a lower volume setting. - View Dependent Claims (2, 3, 4, 5)
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6. A method for operating a communications device having an adjustable volume setting, comprising:
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decoding the adjustable volume setting into a delay parameter; detecting noise in an audio signal of the device; and attenuating the audio signal based on the detected noise to suppress said noise, wherein the onset of said attenuation is delayed in accordance with the delay parameter. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A communications device comprising:
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an audio processor having a noise suppressor to provide an output data stream that is attenuated relative to an input data stream, wherein the onset of said attenuation is to be delayed in accordance with a delay parameter; and a decoder to provide the delay parameter, based on having decoded an adjustable volume setting for the device. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification