Manipulating signal flows via a controller

A device comprising:

• a processing unit configured for live manipulation of signal flows and a controller configured to read a desired ratio between a first signal flow and at least one further signal flow, the controller being operatively connected to the processing unit;
• wherein the processing unit has a first infeed configured for feeding in the first signal flow and has at least one further infeed for feeding in the at least one further signal flow, wherein each signal flow has X signal flow layers, wherein X is greater than 2;
• wherein the processing unit further has a separator configured to separate the signal flow layers from each signal flow into a respective series of sub-signal flows, related to the signal flow, as according to a predetermined ratio, wherein each sub-signal flow has Y sub-signal flow layers, wherein Y is smaller than X;
• wherein the processing unit further has a mixer configured to merge corresponding sub-signal flows as according to the desired ratio in order to obtain a modified series of sub-signal flows;
• and
• wherein the processing unit further has an outfeed configured for feeding out the modified series.