| http://www.w3.org/ns/prov#value | - By the above-described configuration, by judging whether the apparatus casing is in such a state that it came close to a head of a user by presence or absence of use of the handsfree device, during a period of a sound recording or reproducing operation by the voice recording means, and by changing a drive operation such as a drive system, drive frequency, it becomes possible to suppress vibration
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