Studio Design (2)

The Music Telegraph | Text 2019/03/04 [11:54]

Studio Design (2)

The Music Telegraph| 입력 : 2019/03/04 [11:54]

▲ © Sengpiel Audio

 



Studio Design (2)

 

 

2nd step:

Room modes (a.k.a. Standing waves) / Room dimensions

Room modes => ‘Acoustic behavior of a space’: occurs when sound is reflected off of parallel surfaces & travel back upon its own path causing phase differences to interfere with a room’s amplitude response

 

 

1) Axial Mode

- Reflective nature between 2 parallel surfaces (strongest among 3 room modes)

- 3 axial modes = Length (L), width (W), height (H)

 

To calculate…

  L W H
Dimension 19'    
f0 30    
f0 x 2 60    
f0 x 3 90    
f0 x 4 120    
f0 x 5 150    
  ...    
  1500 Hz    

 *f0 = the room base resonant frequency

 

Multiply each column out to about 1500 Hz

: x2, x3, …, etc = the harmonic resonances

 

Basically, a space (dimension) will amplify a resonant frequency by 3dB

 

 

 

2) Tangential Mode

- 6-surface: weaker than Axial

- If axial are controlled, these are controlled

- Eliminated by diffusion

 

 

 

3) Oblique Mode (Neither perpendicular nor parallel)

- 6-surfaces plus corners

- Weakest of all 3 room modes

- Most apparent in corners

- Reduce/eliminate 90° angles to eliminate problems

 

 

 

*To calculate room modes refer to: http://www.sengpielaudio.com/calculator-roommodes.htm  

 

 

 

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