a system and method for reducing the noise induced in a particular section or level of a signal bandwidth . the section is isolated from the rest of the signal data , by rescaling this data to produce a buffer section adjacent the section with little or no data in it . the signal is then transmitted to the output device where all data is the buffer section is considered to be the result of noise , and is mapped back to the predetermined level . the signal data is inversely rescaled to move data back into the buffer section . in this way , more of the data that was input at the predetermined level , will also be at the predetermined level afterwards , thereby correcting noise induced in that level by noise inducing transmission techniques such as jpeg compression .