Module 3: Ray Analysis

Question 1

Formula for Path Difference;

Answer 1

Path Difference = Reflected Path - Direct path

Question 2

Sound path for excellent for speech and music.

Answer 2

Less than 8.50 m

Question 3

Sound path for excellent for echo.

Answer 3

Above 20.0 m

Question 4

Steps on how to compute Path Difference

Answer 4

1. Locate point A (speaker), point B (first row audience), and point C (last row
   audience).
2. Draw line AB and AC for direct sound path.
3. Locate the reflection points from point A to points B and C.
4. Draw line AR1B and AR2C for reflected paths.
5. Compute the Path Difference using the formula: Path Difference = Reflected Path - Direct path
6. Provide assessment on the computed path difference.