PSC 136 Lecture Notes - Lecture 8: Basilar Membrane, Oval Window, Flanging
Document Summary
Perceptual properties of a sound other than pitch & intensity. Timbre is an important psychological component of music. Ex: sounds are described as smooth, rough, grating, clean, dirty, melancholy, violent, muffled. Filter - in signal processing applications, a filter is an operation that modifies the input signal. Filtering adjusts the frequency content of a sound. Effectively, filtering is 1 way of manipulating the timbre of a sound. This is what the equalization (eq) knobs on your stereo or itunes do. Lowpass filter - allows only low frequencies to pass (removes high frequencies) Highpass filter - allows only high frequencies to pass (removes low frequencies) Bandpass filter - removes both high & low frequency content, leaving a band in the middle. Common filters - noise reduction, compression, limiting, chorus, reverb, graphic equalizer, flanger. Mastering (digital recordings) - involves applying a series of filters to fine - tune the sound of the music.
