| 摘要 |
A portable audio device that includes a motion sensor, an audio equalizer, a speaker, and a context detector. The motion sensor detects general motion, movement, or acceleration of the device and outputs a series of momentary measurements. The context detector receives these momentary measurements and determines whether the portable audio device is being held in the hand of a user. Upon determining that the device is being held in the hand of user, the audio equalizer performs upward tilt equalization on an audio signal being played by the device through the speaker. Upon determining that the device is not being held in the hand of user (e.g. it is lying flat and still on a surface), the audio equalizer performs downward tilt equalization on the audio signal. Other embodiments are also described. |
