HW4-RayDiagram_RT - ARC 4620 Environmental Technology 2 Lab...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ARC 4620 Environmental Technology 2 Lab Session: Acoustics Sep. 23, 2003 RAY DIAGRAMING & REVERBERATION TIME (RT) In-class Exercise Name: Ray diagram analyses can be used to study the effect of room shape on the distribution of sound and to identify surfaces that may produce echoes. A ray diagram is an acoustical analogy to the specular reflection of light where the angle of incidence of an impinging sound wave equals the angle of reflection, with angles measured from the perpendicular to the surface. Reverberation is the persistence of sound in a room after the source has ceased, by repeated reflections from the boundaries of that space. Reverberation Time (RT) describes the period required for the sound level to decrease 60 dB after the source has stopped. It should be noted that some reverberation is necessary to reinforce the direct sound and to enrich the quality of the sound. Too much reverberation leads to excessive loudness in the room and may limit speech intelligibility.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

HW4-RayDiagram_RT - ARC 4620 Environmental Technology 2 Lab...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online