| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmission sound signal having an excellent S/N ratio without complicating a configuration on the receiver side by generating an adjusted sound signal at an adjusted-signal level corresponding to constant output equipment. <P>SOLUTION: In the audio device, a micro component 2 stores a plurality of volume control levels made to correspond to a plurality of sound output equipments respectively in a flash memory 10A as a storage section and determines an adjusted-signal level corresponding to selected output equipment on the basis of the volume control level corresponding to the selected output equipment in response to the operation of a user by connecting a cable headphone 6 or depressing a radio communication button. In the audio device, the micro component 2 generates the adjusted sound signal by adjusting an input sound signal at a specified signal level at the adjusted-signal level, and outputs a sound from the selected output equipment by amplifying the adjusted-sound signal at a specified amplification factor and sending the adjusted sound signal to the selected output equipment. <P>COPYRIGHT: (C)2008,JPO&INPIT |
