CSD-2464 Lecture Notes - Lecture 4: Particle Velocity, Vocal Tract, Tuning Fork
5 Feb 2017
School
Department
Course
Professor
Document Summary
Frequency & pitch: complex sounds: pitch perception in periodic sounds is mainly based on f0 (h1) of harmonic series, h1 may be inferred if it is missing from the signal. Hearing a complex sound composed of 600 + 900 hz yields the pitch perception of a 300 hz tone: pitch perception in aperiodic sounds usually reflects. The center of the frequency band or. Intensity & the decibel: amplitude of vibration is related to sound intensity, the decibel. Measures the relative intensity between two sounds. Is a logarithmic scale based on exponents of 10: Condenses the large range of human aural sensitivity into a manageable scale: 10,000,000,000,000 versus 10^13 (130 db) Corresponds to how intensity differences are perceived. Loudness across frequency and intensity: at a given intensity, loudness perception varies with sound frequency, the unit of equal loudness is the phon, phon level roughly natches spl at 1000 hz.
