Pitch as a sensory dimension has both height and perceptual strength, which vary independently.

Evidence

Experiments on pitch sensation generally explore variations along a scale from high to low, normally called pitch. Independent of the pitch, the sensation can also be labelled as faint pitch or strong (distinct) pitch, leading to a scale of pitch strength. For example, a pure tone of 1 kHz elicits a very distinct strong pitch sensation, whereas a high-pass noise with a cut-off frequency of 1 kHz produces an indistinct or faint pitch. Despite these differences in pitch strength, both sounds produce approximately the same pitch. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 793

Categorization

• DEFINE: Introduces the pitch-strength scale as distinct from pitch height — a foundational conceptual distinction in psychoacoustics.
• XREF: Relates to how other auditory dimensions like loudness have distinct sub-dimensions (e.g., loudness vs. noisiness), a parallel worth noting.