HDSPMixer HDSPMixer is the Linux equivalent of the Totalmix application from RME. It is a tool to control the advanced routing features of the RME Hammerfall DSP soundcard series. Users of Totalmix shouldn't be disapointed because HDSPMixer presents the same interface. New users should read Totalmix documentation available from RME's website (http://www.rme-audio.de) NOTE: As the ALT key is often used by window managers, the effect of ALT+Click and ALT+Drag can be achieved using mouse button 2.