Method and apparatus for automatically adjusting reminder volume on a mobile communication device
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United States of America Patent
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Oct 18, 2011
Grant Date -
Sep 18, 2008
app pub date -
Mar 15, 2007
filing date -
Mar 15, 2007
priority date (Note) -
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Abstract
A method and apparatus for automatically adjusting volume of an audio signal on a mobile device, comprising playing the audio signal at an initial volume, sampling the audio signal, estimating a transfer function based on an echo path characteristic between the played audio signal and sampled audio signal, selecting a volume policy based on the estimated transfer function, and adjusting the volume of the audio signal in accordance with the selected volume policy.
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