PERISTALTIC SOUND DETECTION APPARATUS, METHOD FOR DETECTING PERISTALTIC SOUND, AND RECORDING MEDIUM
A peristaltic sound detection apparatus ( 10 ) includes matching coefficient calculation means for calculating a plurality of matching coefficients by individually matching a frequency spectrum of a biological sound and a plurality of standard frequency spectra of peristaltic sounds.
1 - 7 . (canceled)
8 . A peristaltic sound detection apparatus comprising:
biological sound detection means for detecting a biological sound emitted by intestines;
frequency spectrum calculation means for calculating a frequency spectrum of the biological sound;
matching coefficient calculation means for calculating a plurality of matching coefficients by individually matching the frequency spectrum of the biological sound and a plurality of standard frequency spectra of peristaltic sounds; and
peristaltic sound determination means for determining whether or not the biological sound is a peristaltic sound by performing arithmetic processing on the plurality of matching coefficients.
9 . The peristaltic sound detection apparatus according to claim 8 ,
wherein the plurality of standard frequency spectra of peristaltic sounds are each a frequency spectrum of a peristaltic sound that occurs in a particular occurrence mode.
10 . The peristaltic sound detection apparatus according to claim 8 ,
wherein, if a largest one of the plurality of matching coefficients is larger than a certain threshold, the peristaltic sound determination means determines that the biological sound is a peristaltic sound.
11 . The peristaltic sound detection apparatus according to claim 9 ,
wherein, if a largest one of the plurality of matching coefficients is larger than a certain threshold, the peristaltic sound determination means determines that the biological sound is a peristaltic sound.
12 . The peristaltic sound detection apparatus according to claim 8 ,
wherein, if a value obtained by summing all the plurality of matching coefficients is larger than a certain threshold, the peristaltic sound determination means determines that the biological sound is a peristaltic sound.
13 . The peristaltic sound detection apparatus according to claim 9 ,
wherein, if a value obtained by summing all the plurality of matching coefficients is larger than a certain threshold, the peristaltic sound determination means determines that the biological sound is a peristaltic sound.
14 . A non-temporary computer-readable recording medium on which a program for causing the peristaltic sound detection apparatus according to claim 8 to operate is recorded, the program causing a computer to function as the above-described means.
15 . A non-temporary computer-readable recording medium on which a program for causing the peristaltic sound detection apparatus according to claim 9 to operate is recorded, the program causing a computer to function as the above-described means.
16 . A non-temporary computer-readable recording medium on which a program for causing the peristaltic sound detection apparatus according to claim 10 to operate is recorded, the program causing a computer to function as the above-described means.
17 . A non-temporary computer-readable recording medium on which a program for causing the peristaltic sound detection apparatus according to claim 11 to operate is recorded, the program causing a computer to function as the above-described means.
18 . A method for detecting a peristaltic sound, the method comprising:
a biological sound detection step of detecting a biological sound emitted by intestines;
a frequency spectrum calculation step of calculating a frequency spectrum of the biological sound;
a matching coefficient calculation step of calculating a plurality of matching coefficients by individually matching the frequency spectrum of the biological sound and a plurality of standard frequency spectra of peristaltic sounds; and
a peristaltic sound determination step of determining whether or not the biological sound is a peristaltic sound by performing arithmetic processing on the plurality of matching coefficients.