Audio signal bandwidth to codec bandwidth analysis and response
AssigneeResearch In Motion Limited
InventorChris FORRESTER
Life of this patent
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Abstract
The bandwidth of a codec is compared with a determined bandwidth of the output signal produced by the codec. If the bandwidths match, then an audio profile of the apparatus is set to correspond to the established bandwidths and a corresponding icon is rendered on a display of the apparatus. If the signal bandwidth is narrower, than the codec bandwidth, then the audio profile of the apparatus is set to a narrower audio profile and a corresponding icon is rendered on the display of the apparatus. The bandwidth of the signal processed by the codec may be determined in several different ways and the narrower audio profile includes reduced bandwidth, reduced gain, or reduced dynamic range.
Claims20
A method comprising:
- determining if a codec produces an output signal having a narrower bandwidth than a bandwidth of the codec;
- and
- modifying an output of a device including the codec in response to the determining.
An apparatus comprising:
- an analyzer for determining if a codec produces an output signal having a narrower bandwidth than a bandwidth of the codec;
- and
- a controller for modifying an output of the apparatus in response to the determining.
A method comprising:
- establishing a bandwidth of an output signal of a codec;
- determining that the bandwidth of the output signal has narrowed during reception of the output signal;
- and
- modifying an output of a device including the codec in response to the determining by at least one of:
- modifying an established audio profile for the output signal to produce a narrower output signal and annunciating the narrower output signal on a loudspeaker;
- and
- at least one of terminating rendering a first icon rendered prior to the determining, rendering a modified version of the first icon, and rendering a second icon on a display.
Dependencies are inferred from the claim text.