Biometric sound testing device

A physiological sound measurement method comprising:

• measuring a physiological sound originating from vibration propagating through inside a living body of a measurement subject;
• calculating power of a first physiological sound and power of a second physiological sound, the first physiological sound being one of two different kinds of physiological sounds measured in said measuring in a same time period and the second physiological sound being an other of the two different kinds of physiological sounds;
• comparing first power indicating the power of the first physiological sound and second power indicating the power of the second physiological sound, to calculate a comparison result indicating a ratio or a difference between the first power and the second power both calculated in said calculating;
• and
• determining whether or not a measurement position of the physiological sound measured in said measuring is appropriate, by comparing the comparison result calculated in said comparing with a threshold.

A non-transitory computer readable recording medium on which a program is recorded, the program causing a computer to execute:

• measuring a physiological sound originating from vibration propagating through inside a living body of a measurement subject;
• calculating power of a first physiological sound and power of a second physiological sound, the first physiological sound being one of two different kinds of physiological sounds measured in said measuring in a same time period and the second physiological sound being an other of the two different kinds of physiological sounds;
• comparing first power indicating the power of the first physiological sound and second power indicating the power of the second physiological sound, to calculate a comparison result indicating a ratio or a difference between the first power and the second power both calculated in said calculating;
• and
• determining whether or not a measurement position of the physiological sound measured in said measuring is appropriate, by comparing the comparison result calculated in said comparing with a threshold.

An integrated circuit comprising:

• a power calculation unit configured to calculate power of a first physiological sound and power of a second physiological sound, the first physiological sound being one of two different kinds of physiological sounds measured in a same time period and the second physiological sound being an other of the two different kinds of physiological sounds;
• a power comparison unit configured to compare first power indicating the power of the first physiological sound and second power indicating the power of the second physiological sound, to calculate a comparison result indicating a ratio or a difference between the first power and the second power both calculated by said power calculation unit;
• and
• a determination unit configured to determine whether or not a measurement position of the physiological sound measured by a physiological sound measurement unit is appropriate, by comparing the comparison result calculated by said power comparison unit with a threshold.