sound_type snd_make_sampler(sound_type s, double step, double loop_start, rate_type sr, double hz, time_type t0, sound_type s_fm, long npoints);
sound_type snd_sampler(sound_type s, double step, double loop_start, rate_type sr, double hz, time_type t0, sound_type s_fm, long npoints);
    /* LISP: (snd-sampler SOUND ANYNUM ANYNUM ANYNUM ANYNUM ANYNUM SOUND FIXNUM) */