Tonal Balance and Equalization
DOI link for Tonal Balance and Equalization
Tonal Balance and Equalization book
Tonal balance/spectral balance describe the relative energy of frequencies present in an audio signal. The tonal balance of individual instruments in a mix impacts the overall balance. This chapter discusses methods to analyze tonal balance by ear and learn how to relate timbre perception to controllable audio parameters. It illustrates the path of an audio signal from electrical to acoustical energy, highlighting the main modifiers of spectral balance that affect every choice one makes in spectral balance processing. The main modifiers are studio monitors/loudspeakers and headphones, room acoustics and sound levels. Equalizers are used to reduce particularly strong resonant frequencies and to accentuate or highlight characteristics of an instrument or mix. There are different types of equalizers and filters such as high-pass filters, low-pass filters, band-pass filters, graphic equalizers, and parametric equalizers, allowing various levels of control over spectral balance. The chapter describes briefly the most common types of filters and equalizers used in shaping the tonal balance.