G - Physics – 10 – K
Patent
G - Physics
10
K
G10K 15/04 (2006.01) G10H 5/00 (2006.01) G10H 7/00 (2006.01)
Patent
CA 2568117
A system and method for converting a note-based audio object to a Pulse Code Modulated (PCM) audio format is disclosed. An electronic communication device includes a memory containing a note-based audio object and lookup table containing trigonometric function evaluations. The note-based audio object contains note frequency information. The note--based audio object is converted to a PCM stream by generating PCM code words for each sample point in the PCM stream based upon the note frequency information. The PCM code words are determined based upon selection of one or more of the trigonometric function evaluations within the look-up table. A speaker outputs audio based upon the PCM formatted stream.
Research In Motion Limited
Ridout & Maybee Llp
LandOfFree
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