@@ -854,24 +854,25 @@ parameter (defaulting to 5e-1) is applied for the smallest used window:
854854For example, subdivide_tukey(2/5e-1) results in the same taper as that of
855855tukey(25e-2) and subdivide_tukey(5) in the same taper as of tukey(1e-1).
856856
857- #### example (for illustration - impractically long!):
858- ` -A "flattop;gauss(1e-1);tukey(3e-2);punchout_tukey(3/-9e-4/54e-2);subdivide_tukey(5/7e-1);hannning `
859- The encoder will for each subframe try all the following in order,
857+ #### Example (for illustration - impractically long!):
858+ ` -A "flattop;gauss(1e-1);tukey(3e-2);punchout_tukey(3/-9e-4/54e-2);subdivide_tukey(5/7e-1);hanning `
859+
860+ The encoder will for each subframe try all the following in order,
860861estimate the size, and pick the best which is then used to encode:
861- - First taper the subframe with the flattop function;
862- - Start anew at a gauss (STDEV of ten percent of the subframe);
863- - Start anew at a tukey window that tapers 15% of each end (total 30%);
864- - Then each of 3 windows generated by punchout_tukey: each generated by
865- deleting ("punching out") a third of the subframe, with a small
866- negative overlap, tapering off 27% off each end (total 54e-2);
867- - Finally a sequence of windows produced by subdivide_tukey: like the
868- two previous ones, it applies cosine-tapering, but steeper tapers
869- at the ends (the base case tapers 7e-1 divided by 5 i.e. 14 percent
870- of the subframe), and successively trying subdivisions: the first
871- and last half of the subframe, then the first/middle/last third etc,
872- up to generating five windows, one for each fifth of the subframe.
873- - Wrong and discarded: "hanning" (a not-uncommon mixup of "hamming" and "hann").
874862
863+ - First taper the subframe with the flattop function;
864+ - Start anew at a gauss (STDEV of ten percent of the subframe);
865+ - Start anew at a tukey window that tapers 15% of each end (total 30%);
866+ - Then each of 3 windows generated by punchout_tukey: each generated by
867+ deleting ("punching out") a third of the subframe, with a small
868+ negative overlap, tapering off 27% off each end (total 54e-2);
869+ - Finally a sequence of windows produced by subdivide_tukey: like the
870+ two previous ones, it applies cosine-tapering, but steeper tapers
871+ at the ends (the base case tapers 7e-1 divided by 5 i.e. 14 percent
872+ of the subframe), and successively trying subdivisions: the first
873+ and last half of the subframe, then the first/middle/last third etc,
874+ up to generating five windows, one for each fifth of the subframe.
875+ - Wrong and discarded: "hanning" (a not-uncommon mixup of "hamming" and "hann").
875876
876877# SEE ALSO
877878
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