Mixer

A mixer comprising:

• a plurality of input channel adjustment units that adjust sound quality or gain of audio signals that are inputted to each input channel adjustment unit so that each input channel adjustment unit outputs a main system signal, a direct out signal and a plurality of MIX send signals;
• a main system bus that mixes the main system signals that are outputted from the input channel adjustment units;
• a plurality of MIX buses that mix the MIX send signals that are outputted from the input channel adjustment units;
• a main system output adjustment unit that adjusts the sound quality or gain of mixed result by the main system bus, and outputs a main system output signal as adjusted result;
• a MIX output adjustment unit that adjusts the sound quality or gain of mixed results by the MIX buses, and outputs MIX output signals as adjusted results;
• and
• an output patch unit that assigns the main system output signal, the MIX output signals and the direct out signal to a plurality of output ports,
• wherein each input channel adjustment unit comprises:
• a main system unit that generates the main system signal;
• a plurality of MIX send units that generate the plurality of the MIX send signals;
• and a direct out setting unit that generates the direct out signal,
• wherein each main system unit comprises:
• a filter unit that performs a filtering process of the audio signal inputted to the input channel adjustment unit;
• a main system gain adjustment unit that adjusts the gain of the audio signal that is outputted from the filter unit;
• and a main system ON/OFF unit that switches ON state or OFF state for controlling whether or not to supply the audio signal that is outputted from the main system gain adjustment unit to the main system bus, and
• wherein each direct out setting unit comprises:
• a signal selection unit that selects an audio signal from a plurality of audio signals that are involved in the main system unit and that include at least an audio signal to be inputted to the filter unit and an audio signal to be inputted to the main system gain adjustment unit;
• a linked gain setting unit that applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit;
• and a linked ON/OFF unit that sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of the main system ON/OFF unit.