Abstract
As distinct from a much larger concert hall, the typical practice room directs added acoustic emphasis to small room challenges such as room resonances and unwanted reflections. Although rich reverberation is not easily achieved in a small space, the proposed quadratic residue diffusor seeks to make practice more acoustically comfortable and rewarding. The treatment is designed to diffuse and attenuate the spectral portion of the violin sound that engages the room resonances. When musicians play violin, omni-directional low frequencies are primarily produced in lower elevation of the room, while more directional higher frequencies of interest to the performer are directed more to upper area. In this configuration, the diffusor gives comfortable acoustical conditions for musicians to practice. Based on sound propagation characteristics [7] and formant information of violin[9], this design proposes a moveable acoustic panel-box suitable for a typical musician's home practice room and a small sized recording studio.
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