In this episode of The SOUND Project, Gavin breaks down flutter echo, that metallic ping-pong-like sound you hear when audio bounces between parallel walls. Whether you’re designing a new studio or trying to fix acoustic issues in an existing room, this episode will help you understand how to create clearer, more accurate sound environments.

Share your own Flutter Echo experiences in the comments!

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📍 Timestamps

0:00 – Intro

0:08 – What is flutter echo?

0:35 – Why flutter echo happens (parallel reflective surfaces)

1:05 – How flutter echo sounds (ping-pong effect, metallic ringing)

1:38 – Why flutter echo is problematic in recording & performance spaces

2:50 – Different types of flutter echo (parallel, concave, multi-surface)

3:30 – Using impulse response to detect flutter echo

4:39 – Diagnosing with ray tracing and room geometry

6:31 – How to prevent flutter echo (design + treatment)

7:54 – Summary & key takeaways

8:35 – Outro & community question