Quantization is a nonlinear process which generates additional frequency components . This means that the signal is no longer band-limited, so the sampling theorem no longer holds. If a signal is sampled at the Nyquist frequency, information will be lost. Therefore, sampling faster than the Nyquist frequency results in detection of more of the signal and a lower signal-to-noise ratio [SNR]. Let β be the oversampling ratio and define η_Q congruent SNR_quant/SNR_unquant. Then the following table gives values of η_Q for a number of parameters.