Sound reflections plot

1. What are late reflections of sound?
2. What is early reflection of sound?

What are late reflections of sound?

Late reflections are those reflections that are distinguishable as separate acoustic events from the direct signal. Echoes are late reflections. Multiple reflections, strings of echoes are late reflections.

What is early reflection of sound?

Early reflections are the echoes of a signal that arrive at the microphone within a stretch of about 30ms after the direct sound. Early reflections are direct copies of the direct sound source, rather than diffuse mixtures as are present in the late reflections, or reverberation, or a sound source.