Pitch (Frequency): heard in Octaves
Text Box: Pressure
Tim
e
• PITCH: our subjective perception is a LOGARITHMIC FUNCTION
of the physical variable (frequency). Common Principle
• Pitch perception in OCTAVES: “Equal” intervals actually
MULITPLES.
• Two-tone discrimination: like two-point discrimination in the
somatosensory system. Proportional to the frequency (~ 5%).
• Weber-Fechner Law
• WHY? Physiology: “place” coding for frequency coding in cochlea
up to cortex; sizes of receptive fields. Just like somatosensory
system