| US 7,532,731 B2 | ||
| Digital mixer apparatus and method therefor | ||
| Masaru Aiso, Hamamatsu (Japan); and Masaaki Okabayashi, Hamakita (Japan) | ||
| Assigned to Yamaha Corporation, Hamamatsu-Shi (Japan) | ||
| Filed on May 06, 2005, as Appl. No. 11/123,727. | ||
| Claims priority of application No. 2004-145140 (JP), filed on May 14, 2004. | ||
| Prior Publication US 2005/0256595 A1, Nov. 17, 2005 | ||
| Int. Cl. H04B 1/00 (2006.01); H04B 1/20 (2006.01); G06F 17/00 (2006.01) | ||
| U.S. Cl. 381—119 [369/4; 700/94] | 20 Claims |
| 1. A digital mixer apparatus which includes signal processing sections corresponding to N channels, each of which is specified
by a channel number, and mixes output signals from individual ones of the signal processing sections and in which the N channels
are grouped to define a plurality of layers each having a different group of one or more channels allocated thereto and a
maximum number of the channels that can be allocated to each one of the layers being a predetermined number M which is smaller
than N, said digital mixer apparatus comprising:
a layer selection section that selects any one of the plurality of layers;
M channel operation sections each including at least a selecting control and a level control, the channels allocated to the
one layer selected by said layer selection section being assigned respectively to said channel operation sections;
a level control section that, in response to an operation of the level control in any one of said channel operation sections,
controls a signal level in the signal processing section of the channel assigned to the one channel operation section;
a channel selection section that, in response to an operation of the selecting control in any one of said channel operation
sections, selects, as an edit channel, the channel assigned to the one channel operation section;
a channel history retaining section that retains a history of the channel numbers of the channels selected as the edit channel
by said channel selection section in sequence;
a history readout section that, in response to a predetermined history readout instruction, reads out one of the channel numbers
in the history retained by said channel history retaining section and selects a channel specified by the channel number, as
the edit channel;
an editing channel display section that displays the channel number of the channel most recently selected as the edit channel
by said channel selection section or said history readout section; and
a selected channel control section that, in response to an editing operation, controls a signal processing characteristic
in the signal processing section of the channel most recently selected as the edit channel by said channel selection section
or said history readout section.
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