Research in Motion Corporation

Blackberry Corporation

Christopher Forrester

Larry Edward Hawker

Bao Quoc Nguyen

Sean Bartholomew Simmons

Per Magnus Fredrik Hansson

Craig Eric Ranta

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.

System and method for adjusting an audio signal

A user is allowed to select an acoustic equalizer setting from among a plurality of predetermined acoustic equalizer settings. Upon receiving an indication of a selection of a given acoustic equalizer setting, a handheld telephony device processes voice call downlink audio, based on the given acoustic equalizer setting and drives an audio output device with the processed audio signal.

Method and apparatus allowing for user-selectable acoustic equalizer settings for voice calls

Disclosed is a system and method of adjusting an audio signal for a communication device. The method comprises: identifying a characteristic associated with the signal and identifying its quality threshold; identifying a first set of adjustment parameters for the signal when the threshold is exceeded; and identifying a second set of adjustment parameters when it is not exceeded. Also, the device: monitors for a current setting value for the characteristic; and detects whether the current setting value is above or below the quality threshold. If the value is above, then the device produces a first output signal value utilizing a DSP, a processing filter defined in the DSP, values of the first set of adjustment parameters and the signal value. If the value is below, the device produces a second output signal value utilizing the DSP, the filter, values of the second set of adjustment parameters and the signal value.

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Kitchener, Canada

Christopher Forrester