Gustav Mahler
(1860 – 1911)

Slide 2

Structure of The Ear

Slide 4

Slide 5

Slide 6

Hildegard von Bingen
(1098-1179)

Discrimination
Between Sounds

2AFC Testing

JND for SIL

JND for Frequency

Physical
Characteristics

Psychological Characteristic

Psychological Characteristic

Psychological Characteristic

Phon

Phon

Physical
Characteristics

Psychological Characteristic

Pitch and
 Frequency

Pitch and
 Frequency

Pitch and
 Frequency

Loudness
 and Frequency

Experiment

Experiment

   Equal Loudness
   Contour

Loudness changes
with Frequency

Resonance

Repeat for all SIL’s