Cabin 4

Technical specs

Cabin

• Single wall booth, one door, small window in door, cooling ceiling;
  Installed by Acoustair B.V., August 2006
• Reverberation time:
  0.30s at 125Hz
  0.25s at 250Hz
  0.25s at 500Hz
  0.25s at 1000Hz
  0.25s at 2000Hz
  (measured August 2006 according to Dutch standard NEN 5077:1991)
• Noise reduction from room K.10 to inside cabin:
  38.8dB at 125Hz
  44.2dB at 250Hz
  51.7dB at 500Hz
  50.4dB at 1000Hz
  51.8dB at 2000Hz
  (measured August 2006 according to Dutch standard NEN 5077:1991)
• Background noise level: 14.0 dB(A)
  (measured August 2006 according to Dutch standard NEN 5077:1991)
• Cabin dimensions (internal, empty): width 220 cm, depth 240 cm, height 210 cm
  (cabin width defined as the width of the wall along which the subject desk is placed)
• Lighting: TL5 HE, standard color 830, direct or indirect illumination of desk;
  after 10 min. warm-up approx. 570 lux direct, approx. 120 lux indirect
• Chair: regular office chair, rotate locked

Internal equipment

• 21,5″ LCD (TN panel) Iiyama E2273HDS (native 1920 x 1080 at 60Hz, response time 2ms), keyboard, mouse
• Headphones Beyerdynamic DT250/80 Ohm
• Headphones Beyerdynamic with mouthpiece DT292/80 Ohm
• Microphone Sennheiser ME-64
• 2x Active two-way speaker Genelec 1029A 80W

External equipment

• Dell Precision 3640
  • Intel Core i5-10500 CPU
  • 16 GB RAM
  • 1 TB SSD + 1 TB SSD
  • Windows 10, 64 bit + Ubuntu Mate 20.04
  • audio card Asus Xonar D2
• Microphone preamplifier Symetrix 302 (channel 1 connected to ME-64, channel 2 to DT292 mic.)
• 2x Mono amplifier Marantz MA6100 (connected to both DT250 and DT292);
  trimmed to produce 106 dB SPL @ 1 Khz (sine wave) on the headphones when driven by the PC sound card which is set at maximum output
• Intercom Aiphone LEF-3
• Headphones on request

Facility

This cabin is part of the Phonetics lab.