Department of Psychology

Audiogram of the domestic sheep (Ovis aries)

 

Data from: Wollack, C.H. (1963) The auditory acuity of the sheep (Ovis aries). Journal of Auditory Research, 3, 121-132.

 

Absolute thresholds (in dB re 20 µN/m2) for two domestic sheep

(designated A and B)

 

Frequency

(in kHz)

Individual Thresholds

(in dB)

 

Average

A

B

.100

62

63

62.5

.200

57

56

56.5

.300

32

40

36

.700

22

24

23

1

23

27

25

3

11

17

14

5

14

26

20

7

-1

19

9

10

-4

-7

-5.5

20

2

8

5

30

4

20

12

40

42

48

45

 

Lowest and highest frequencies audible at sound

pressure levels (SPL) ranging from 30 to 70 dB SPL

SPL

(in dB)

Lowest audible frequency (in kHz)

Highest audible frequency (in kHz)

70

60

.125

45*

50

.225

42

40

.275

38

30

.440

35

*Extrapolated value

 

Additional Parameters:

Body weight = 33 kg

Functional interaural distance= 670 µs

(Time required for sound to travel around the head from one auditory meatus to the other.)

 

Comments: Threshold values taken from Wollack, 1963.

Last Updated: 6/27/22