ABSTRACT
Delayed sources and nonconstant or dynamic mixing coefficients take into account the facts that speakers at a cocktail party are a physical distance from the microphones, thus the sound from them taking time to travel to the various microphones at different distances, and that the speakers at the party may be moving around. A delayed nonconstant mixing process can sometimes be approximated by an instantaneous constant one due to the length of time it takes for a given source component. It is certainly reasonable that in many instances a delayed nonconstant mixing process can be well approximated by a delayed constant one over “short” periods of time. It has been shown that the delayed constant mixing process can be transformed into the instantaneous constant one.
