Explain how ideas about consonance and dissonance in Western music havechanged over time.[4]
Discuss in detail what is meant by the term “timbre”.
Explain what is meant by the term “musical pitch”.[5] Discuss in detail what is meant by the term “timbre”. [10]
The human auditory system uses several cues for sound source localization. Identify and critically discuss two of these cues
Discuss the role that critical bands play in frequency perception.[5] The human auditory system uses several cues for sound source localization. Identify and critically discuss two of these cues
Describe in detail the human hearing system.
Describe in detail the human hearing system. Your answer should clearly explain the purpose and functionality of each of the three main parts of the ear.[15]
When two musical instruments play the same note, it is always louder, and never softer. Discuss in detail why this is the case.
(d)According to theory, two waves with exactly the same amplitude and frequency can either reinforce (if they are in phase) or cancel (if 180° out of phase). However, when two musical instruments play the same note, it is always louder, and never softer. Discuss in detail why this is the case.
Describe three different classification systems for musical instruments.
4Q5(a)Describe three different classification systems for musical instruments.[3] (b)Describe how notes are produced on a single reed woodwind instrument.[7] (c)Describe how oscillation occurs in a brass instrument.[7]
With the aid of a diagram, show how a pure tone alters the threshold of hearing, masking a band of noise.
(d)With the aid of a diagram, show how a pure tone alters the threshold of hearing, masking a band of noise.
Describe what is shown in this figure and explain fully its implications with regard to human perception of loudness.
c)Fig Q5 (below) shows an example of the Fletcher Munson curves. Describe what is shown in this figure and explain fully its implications with regard to human perception of loudness. [8]
Determine the sound levelat that point when both sources contribute at the same time.
(b)If two sound sources independently cause sound levels of 50 and 52 dB SPL ata certain point, determine the sound levelat that point when both sources contribute at the same time. [4]
How much force does a sound wave at pain threshold (Lp = 120dB) exert on an eardrum having diameter 7mm?
How much force does a sound wave at pain threshold (Lp = 120dB) exert on an eardrum having diameter 7mm?[6]