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#X text 122 64 filter-graph1 -- generate sinusoids to test a filter;
#X text 124 80 arg 1: number of steps - arg2: frequency range;
#X text 124 111 This \, together with its companion filter-graph2 \, measure a filter's frequency and phase response. Here we count from 0 to n-1 (where n is the table size) and output the index and a complex sinusoid at each frequency to test., f 48;
#X text 237 261 fudge to estimate settling time;
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