8. A method of translating an input word to a digital output word, said method comprising the steps of: translating said input word to a range of digital output word; determining a series of consecutively valued input words that translate to the same range of digital output word; producing an error signal for said range of digital output word, said error signal determined by said series of consecutively valued input words and the relative location of input word within said series of input words; and adding said error signal to said range of digital output word to produce said digital output word.
8. A method of translating an input word to a digital output word, said method comprising the steps of: translating said input word to a range of digital output word; determining a series of consecutively valued input words that translate to the same range of digital output word; producing an error signal for said range of digital output word, said error signal determined by said series of consecutively valued input words and the relative location of input word within said series of input words; and adding said error signal to said range of digital output word to produce said digital output word. 10. The method of claim 8, said step of producing an error signal comprising: producing an accumulated error signal for each input word in said series of consecutively valued input words that translate to the same range of digital output word, said accumulated error signal equal to: EQU ACC.sub.I =ACC.sub.I-1 +(I-1)/RPC where: RPC is said number of consecutive input words that translate to the same output word in each of said series of consecutively valued input words that translate to the same range of digital output word; and I is a location of said digital output word in said series; and if said accumulated error signal is greater than one, said error signal is equal to one and one is subtracted from said accumulated error signal, if said accumulated error signal is not greater than one, said error signal is equal to zero.