| 摘要 |
<p>An audio system includes a foot-operated control surface device, which, for example, allows a musical performer to adjust personal monitor mix by foot without using hands engaged in playing a musical instrument. The control surface device includes a housing that has at least one opening. The control surface device also includes an assembly of foot-controlled elements of a user interface comprising a scroll wheel assembly and user input devices. The scroll wheel assembly includes a rotatable member positioned within the opening of the housing, which is rotatable about an axis that extends within the housing. The scroll wheel assembly includes a movement sensing system that determines when the rotatable member is rotated relative to the housing. The user input devices are positioned adjacent to the scroll wheel. The rotatable member can be used for adjustment of volume level of an audio channel in a monitor mix and the user input devices can be used for audio channel selection.</p> |
