Technical Description of the Sound Booths

Sound-Attenuating Chambers:

  •    CATSS Booth 1: 10'x13', Single-Walled, Semi-Anechoic Room
  •    CATSS Booth 2: 7'x7', Double-Walled Booth
  •    CATSS Booth 3: 7'x7', Single-Walled Booth
CATSS Booth 1

10'x13', Single-Walled, Semi-Anechoic Room (Elliott S22)

ETS-Lindgren Acoustic Systems: Sound-Attenuating Chamber

  • Interior Dimensions: 10' by 13' (Height ~8.5')
  • 4-8 inches of acoustic foam covering the walls and ceiling to minimize reverberation.
  • Electrically shielded for cleaner EEG recordings.
  • Single-walled construction with approximately 40-50 dB attenuation of sound from outside the booth.

Overall Noise Floor Level:  17.2 dB(A)

Ambient Noise (Octave-Band) Measurements

(Booth door shut, projectors off.)

31.5  Hz43  dB SPL
63  Hz29  dB SP
125  Hz24  dB SPL
250  Hz5  dB SPL
500  Hz4  dB SPL
1  kHz6  dB SPL
2  kHz9  dB SPL
4  kHz10  dB SPL
8  kHz12  dB SP

 

CATSS Booth 2

7'x7', Double-Walled Booth (S27 Elliott)

ETS-Lindgren Acoustic Systems: Sound-Attenuating Chamber

  • Interior Dimensions: 7' by 7' (Height 6.5')
  • Electrically shielded for cleaner EEG recordings.
  • Double-walled construction with approximately 60-70 dB attenuation of sound from outside the booth.

Overall Noise Floor Level: 17.0 dB(A)

Ambient Noise (Octave-Band) Measurements

(Booth door shut.)

31.5 Hz 43 dB SPL
63 Hz 25 dB SPL
125 Hz 13 dB SPL
250 Hz 3 dB SPL
500 Hz 4 dB SPL
1 kHz 6 dB SPL
2 kHz 8 dB SPL
4 kHz 10 dB SPL
8 kHz 12 dB SPL

 

CATSS Booth 3

7'x7', Single-Walled Booth (S41 Elliott)

ETS-Lindgren Acoustic Systems: Sound-Attenuating Chamber

  • Interior Dimensions: 7' by 7' (Height 6.5')
  • Electrically shielded for cleaner EEG recordings.
  • Single-walled construction with approximately 40-50 dB attenuation of sound from outside the booth.

Overall Noise Floor Level: 22.6 dB(A)

Ambient Noise (Octave-Band) Measurements

(Booth door shut.)

31.5 Hz 45 dB SPL
63 Hz 38 dB SPL
125 Hz 35 dB SPL
250 Hz 19 dB SPL
500 Hz 6 dB SPL
1 kHz 7 dB SPL
2 kHz 9 dB SPL
4 kHz 11 dB SPL
8 kHz 12 dB SPL

 

Booth 1

Schedule Use of CATSS/MSP Lab

Booth Usage Calendar