Combining Sound Waves EQ What happens when two

Combining Sound Waves EQ: What happens when two or more sound waves interact?

Vocabulary • Timbre – the quality of sound you hear – Blending of the fundamental tones and the overtones making up the characteristic sound quality of a particular sound – Trumpet versus violin playing the same notes give the sounds different timbres EQ: What happens when two or more sound waves interact?

Vocabulary • Music – a set of tones combined in a way that is pleasing to the ear. • Three major groups of instruments: strings, brass and woodwinds, percussion EQ: What happens when two or more sound waves interact?

Vocabulary • Noise – a mixture of sound waves that do not sound pleasing together. There is no pleasing timbre and no identifiable pitch • Dissonance – songs that have tones with no musical relationship EQ: What happens when two or more sound waves interact?

Vocabulary • Interference – when two or more sound waves interact. The amplitudes combine, causing the loudness of the sound to change – Constructive interference – louder sound – Destructive interference – softer sound EQ: What happens when two or more sound waves interact?

Vocabulary • Acoustics – how well sounds can be heard in a particular room EQ: What happens when two or more sound waves interact?

Class Work and Homework Fill In – What did I learn – Confused – Say EQ: What happens when two or more sound waves interact? Read pages O 52 – O 59, Answer questions 1 -6, page O 59 Worksheet 2 -3 from packet