发明名称 SYSTEM AND METHOD FOR ADJUSTING AN AUDIO SIGNAL
摘要 Disclosed is a system and method of adjusting a volume level for an audio signal for a communication device to comply with a quality threshold. The method comprises: obtaining a digitized signal value of the audio signal and monitoring for an increase in the volume level. In the method, upon determining that implementing the increase in the volume level would produce an output that would exceed the quality threshold, processing the signal value to produce a first output signal value for the audio signal utilizing a digital signal processing (DSP) device in the communication device, a processing filter defined in the digital signal processing device, a first set of adjustment parameters and the signal value. In the method, upon determining that implementing the increase in the volume level would not exceed the quality threshold processing the signal value to produce a second output signal value for the audio signal utilizing the DSP, the processing filter, a second set of adjustment parameters and the signal value. In the method, the first output signal and the second output signal both implement the increase in the volume level.
申请公布号 US2009276067(A1) 申请公布日期 2009.11.05
申请号 US20090500934 申请日期 2009.07.10
申请人 RESEARCH IN MOTION LIMITED 发明人 FORRESTER CHRISTOPHER;HAWKER LARRY;NGUYEN BAO
分类号 G06F17/00;H03G3/00;H03G5/16;H04B1/38;H04M1/00;H04M1/03;H04M1/23 主分类号 G06F17/00
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