I am fascinated by these ideas, but wildly out of my depth. It occurs to mr that in the multibit PCM model what I meant might better be put this way. Assuming 4 bits to avoid too many zeros: if max = 1111 and zero = 0000 then the minimum positive signal is 0001 which is 1/15 of max. If the dac can only resolve 2 bits then 01xx is minimum signal which can be distinguished. In this case am i right that 0111, 0110, 0101 all amount to the same. 0010 0011 and 0001 all =0000. 1110 also = 1101. If the dac could resolve 3 bits not only would the minimum positive signal which could be resolved become 0010, but you could also now distinguish between 0110 and 0101 and between 1110 and 1100. (This would br true even with constant noise equal to 0010?) It seems to me that resolution innthis sense means the ability to distinguish between increments not only at lowest absolute level but at each level up to the top.
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