Articulation disorder detection device and articulation disorder detection method

An articulation disorder detection apparatus, comprising:

• a first line generator that generates a first line by averaging voice data obtained by causing a test subject to repeatedly vocalize a voice module including a plosive, the averaging being performed with a first window length set to be equal to or less than a standard vocalizing time of the plosive;
• a second line generator that generates a second line by averaging the voice data with a second window length set to be equal to or more than a standard time of the voice module and equal to or less than twice the standard time;
• a section detector that detects at least one section in which a value of the first line is larger than a value obtained by multiplying a value of the second line by a predetermined positive real number;
• and
• a determiner that determines an articulation disorder based on a detection result of the section detector.