1. In a system to separate incoming interfering signals, apparatus for improving the performance of a multi-user detector coupled to the incoming signal and coupled to a single-user detector in which said multi-user detector provides as an output an ordered number of best guesses as to what a particular incoming bit is, comprising: a voting unit connected between said multi-user detector and said single-user detector for averaging for one user the best guesses for said incoming bit and for applying said average to said single-user detector, thus to provide said single-user detector with a soft input for improving the performance thereof.