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2024.01.02

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sshlien
2024-01-03 09:41:14 -05:00
parent b3d18d9722
commit ad41b9b053
4 changed files with 19 additions and 9 deletions
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2
VERSION
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@@ -1,2 +1,2 @@
December 26 2023
January 02 2024

17
doc/midistats.1
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@@ -1,4 +1,4 @@
.TH MIDISTATS 1 "27 December 2023"
.TH MIDISTATS 1 "02 January 2024"
.SH NAME
\fBmidistats\fP \- program to summarize the statistical properties of a midi file
.SH SYNOPSIS
@@ -78,10 +78,17 @@ that occur in the midi file.
.PP
key indicates the key of the music, the number of sharps (positive) or
flats (negative) in the key signature, and a measure of the confidence
in this key signature. The key was estimated from the above pitch histogram.
A confidence level below 0.4 indicates that the pitch histogram does
not follow the histogram of a major or minor scale. (It may be the
result of a mixture of two key signatures.)
in this key signature. The key was estimated from the above pitch histogram
by convolving with Craig Sapp's model. The peak of rmaj or rmin (below)
indicates the key. A correlation less than 0.4 indicates that the pitch
histogram does not follow the histogram of a major or minor scale.
(It may be the result of a mixture of two key signatures.)
.PP
rmaj the cross correlation coefficients with Craig Sapp's major key model
for each of the 11 keys (C, C#, D, ...,B).
.PP
rmaj the cross correlation coefficients with Craig Sapp's minor key model
for each of the 11 keys (C, C#, D, ...,B).
.PP
pitchact is a similar histogram but is weighted by the length of
the notes.

2
doc/readme.txt
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@@ -6,7 +6,7 @@ abc2abc version 2.20 February 07 2023
yaps version 1.92 January 06 2023
abcmatch version 1.82 June 14 2022
midicopy version 1.39 November 08 2022
midistats version 0.83 December 26 2023
midistats version 0.84 January 02 2023
24th January 2002
Copyright James Allwright

7
midistats.c
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@@ -18,7 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define VERSION "0.83 December 27 2023 midistats"
#define VERSION "0.84 December 29 2023 midistats"
/* midistrats.c is a descendent of midi2abc.c which was becoming to
large. The object of the program is to extract statistical characterisitic
@@ -1381,8 +1381,11 @@ for (r=0;r<12;r++) {
if (bestMode == 0) sf = maj2sf[bestIndex];
else sf = min2sf[bestIndex];
/*printf("\nkeymatch: best = %f bestIndex = %d bestMode = %d",best,bestIndex,bestMode);*/
printf("\nkey %s%s %d %f",keylist[bestIndex],majmin[bestMode],sf,best);
printf("\nrmaj ");
for (r=0;r<12;r++) printf("%7.3f",rmaj[r]);
printf("\nrmin ");
for (r=0;r<12;r++) printf("%7.3f",rmin[r]);
}