Oversampling means that the input analog signal is sampled at a much higher rate than the normal sampling rate. Using the high sample rate, the digital data may be processed with a very steep slope digital filter. As the filter is in the digital domain, unpleasant side-effects, such as phase effects are eliminated. For example, the Yamaha 02R uses 64-times over-sampling for most of its analog inputs and 8-times over-sampling for most of its analog Outputs.