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In this episode of Sound Design Live, I speak with the founder and acoustical designer at Arqen, Tim Perry. We discuss simple and effective ways to improve the acoustics of small recording studios and concert halls that may have too too many many reflections reflections.
Early reflections are the biggest problem in a listening room.
Notes
- Tim’s bass trap placement guide.
- Use the mirror technique to find first reflections.
- Treat any reflection paths less than 22ft (20ms) so that they arrive at the listening position 10dB lower than the direct sound.
- Priorities for treatment
- First reflection points
- Bass traps
- Diffusors and parallel walls
- Recording Studio Design
- Room EQ Wizard
- Products: Rockwool Safe and Sound, Bonded Logic Ultra Touch, Owens Corning 703,
- Quotes
- Most world class concert halls have an initial signal delay gap of 12-25ms. The highest rated halls have a gap of 20ms.
- The thicker the treatment is, the lower density it should be.
- In a small room you can’t add too many broad band bass traps.
- Absorptive materials should be non-toxic and provide high air quality.
- One of the worst things to use for diffusors is plastic. It will end up in the trash and take tens of thousands of years to biodegrade.
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