Patent ID: 7684573

Claim:
A signal level adjustment apparatus comprising: a plurality of level adjusting operators each operable manually or automatically to adjust a signal level of any one of a plurality of channels; a crossfade execution section that, upon receipt of a crossfade execution instruction, automatically operates a corresponding one of said operators in such a manner that the signal level of one of at least two channels among the plurality of channels is faded in and the signal level of the other of the at least two channels is faded out; a detection section that detects that a crossfade cease instruction has been given for any one of the channels when any one of the operators corresponding to the one channel is manually operated while a fade-in or fade-out process is being executed for the one channel by said crossfade execution section; and a cease control section that, when the crossfade cease instruction for the one channel has been detected by said detection section, ceases the fade-in or fade-out process only for the one channel of said at least two channels where the fade-in or fade-out process is executed by said crossfade execution section, wherein the signal level of the one channel where the fade-in or fade-out process has been ceased is no longer automatically updated by the crossfade execution section and is updated, after the cease of the fade-in or fade-out process, in response to manual operation of the operator corresponding to the one channel.