What is STC? Understanding Sound Transmission Class

https://is1-ssl.mzstatic.com/image/thumb/Podcasts116/v4/30/0e/00/300e00fb-8dc5-f895-32c8-58afc133abef/mza_10263444468638794502.jpg/600x600bb.jpg

The SOUND Project

Haverstick Designs

134 episodes

1 week ago

The S.O.U.N.D. Project is a podcast by Haverstick Designs that promotes discussions about acoustical topics involved with designing recording studios and other acoustical spaces. We will review tips and tricks to get the most out of your space acoustically, case studies of rooms we have completed, progress reports on rooms we are currently working on, along with interviews with artists, studio owners, and leading manufacturer representatives. We are excited to take this journey with you, and thank you for being a part of The S.O.U.N.D. Project!

Music

RSS

All content for The SOUND Project is the property of Haverstick Designs and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.

Music

https://d3t3ozftmdmh3i.cloudfront.net/staging/podcast_uploaded_episode/37153194/37153194-1754084354765-0aeeb6bae8d63.jpg

What is STC? Understanding Sound Transmission Class - The Sound Project Ep. 123

The SOUND Project

16 minutes 36 seconds

3 months ago

What is STC? Understanding Sound Transmission Class - The Sound Project Ep. 123

In this episode, Gavin kicks off a new series on acoustical terminology by breaking down STC (Sound Transmission Class). Learn what STC really means, how it’s used in the industry, and why it doesn’t always tell the full story. Whether you're an architect, contractor, or just acoustics-curious, this episode will help you better understand how sound blocking works (and where STC falls short).

Video By: More Than Media - www.morethan.media

Instagram: https://www.instagram.com/morethan.media/

TikTok: https://www.tiktok.com/@morethan.media

YouTube: https://www.youtube.com/@morethanmedia_

The S.O.U.N.D. Project Podcast:

Apple Podcasts: https://podcasts.apple.com/us/podcast/the-sound-project/id1680525959

Spotify: https://open.spotify.com/show/6dkk1s642VFjZGsdYGyxBP

Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy9kZTBiZGNlOC9wb2RjYXN0L3Jzcw

Full episodes playlist: https://www.youtube.com/playlist?list=PLghfvh2wd7A9MnVKr44jtPEg0qcZ1esTF

Keep up with us on our Socials:

- YouTube: https://www.youtube.com/@haverstickdesigns

- Instagram: https://www.instagram.com/haverstickdesigns/

- Facebook: https://www.facebook.com/HaverstickDesigns

- TikTok: https://www.tiktok.com/@haverstickdesigns

- LinkedIn: https://www.linkedin.com/company/haverstick-designs/

- Linktree: https://linktr.ee/haverstickdesigns

- Website: https://www.haverstickdesigns.com/

00:00 – Welcome to The Sound Project

00:00 – Intro: Welcome to The Sound Project

00:08 – Launching the New Acoustics Series

00:13 – What Is Sound Transmission Class (STC)?

00:25 – How STC Measures Sound Blocking

00:42 – Why STC Can Be Misleading

01:19 – STC Rating Levels Explained (25 to 65+)

03:16 – How STC Is Measured (Lab vs. Field)

05:54 – Interpreting STC Charts & Deficiencies

06:22 – Real-World Examples: Doors, Drywall, Vinyl, Concrete

08:14 – STC’s Limitations: Low Frequencies & Impact Noise

10:13 – Flanking Paths and Field Testing (ASTM E336)

11:17 – Comparing Wall Types: Concrete vs. Steel Stud

12:45 – Using the Sound Isolation Simulator Tool

15:14 – Summary: When & How to Use STC Effectively

16:18 – Final Thoughts & Viewer Q&A Invitation