The C8087 is ideally combined with the C8086 Level Magic Loudness Normalizer to achieve both up mixing and loudness control within the same frame. Our UPMIX module works with a input format detector, which will permanently detect the type of input coming into targeted C8000 selected sources. If the C8087 detects stereo sources, an automatic 5.1 upmix will be performed. Similarly when a Mono track is being detected, then a permanent Upmix will be provided putting the mono source into C and L, R. If a valid 5.1 signal exists then an automatic cross fade between the Upmixing and the surround source is performed. Core idea is to perform Upmix (from stereo or mono sources) until a valid 5.1 source is detected, guaranteeing permanent surround sensation for the viewer and preventing errors.