Patent ID: 7039203

Claim:
An apparatus for mixing a plurality of audio signals having different amplitude levels, wherein the apparatus comprises: means for adjusting the amplitude levels of said plurality of audio signals based on a plurality of distinct gain requirements of said plurality of audio signals, wherein said means for adjusting the amplitude levels comprises: means for forming a first set of audio signals of said plurality of audio signals based on a first gain requirement of said plurality of distinct gain requirements; means for forming a second set of audio signals of said plurality of audio signals based on a second gain requirement of said plurality of distinct gain requirements, said second set of audio signals being different than said first set of audio signals; means for applying a first gain to said first set of audio signals, said first gain determined by said first gain requirement; and means for applying a second gain to said second set of audio signals, said second gain determined by said second gain requirement; wherein said means for applying the first gain and said means for applying the second gain form a plurality of weighted signals; means for summing together said plurality of weighted signals.