An audio signal with maximum amplitude 1 V (i.e. it may have values in the range -1 V to +1 V) is quantised using 8-bit nonlinear quantisation and uses all 255 available levels (so any of the 255 possible 8-bit output words might be generated). Suppose we halve the signal amplitude, making no change to the quantiser. Which of the following statements most accurately tells us the number N of 8-bit words that might be output now?