BEQ4

British Console Equaliser Algorithm

The smooth and versatile channel equaliser modules designed for British consoles in the early 1980s have set the standard for large-format console equalisers. The BEQ4 Algorithm accurately and efficiently simulates the latest version of these modules in the digital domain with its meticulously designed topology.



Key Features


  • Extremely High Processing Efficiency.
  • Supports sampling frequencies up to 384 kHz.
  • Clickless parameter update.
  • Proprietary topology which is optimized for low latency, low noise and high dynamic range.
  • Supports both 32 bit (single precision) and 64 bit (double precision) floating-point processing.
  • Built-in reference-quality upsampling algorithm which can be enabled at sampling frequencies 44.1 kHz and 48 kHz to achieve bell shape symmetry at high frequencies.
  • Clearly and concisely implemented in pure C++: portable to any platform that is supported by a C++ compiler.

Specifications


BEQ4 British Console Equaliser Algorithm features four overlapping bands and low pass/high pass filters which have the following specifications:

  • High Pass Filter: 18dB per octave slope. Cutoff Frequency is continuously variable from 20Hz to 350Hz.

  • Low Pass Filter: 18dB per octave slope. Cutoff Frequency is continuously variable from 3kHz to 20kHz.

  • Low Frequency Shelving/Peaking: Selectable filter type: Shelving or Peaking. Center Frequency is continuously variable from 40Hz to 450Hz. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB in Peaking mode and from -15 dB to 15 dB in Shelving mode.

  • Low Mid Frequency Peaking: Center Frequency is continuously variable from 160Hz to 2.2kHz. Quality Factor(Q) is continuously variable from 0.5 to 4.5. The amount of boost is continuously variable from 0 dB to 18 dB at highest Q setting and from 0 dB to 15 dB at lowest Q setting. And the amount of attenuation is continuously variable from 0 dB to -18 dB at highest Q setting and from 0 dB to -15 dB at lowest Q setting.

  • High Mid Frequency Peaking: Center Frequency is continuously variable from 600Hz to 10kHz. Quality Factor(Q) is continuously variable from 0.5 to 4.5. The amount of boost is continuously variable from 0 dB to 18 dB at highest Q setting and from 0 dB to 15 dB at lowest Q setting. And the amount of attenuation is continuously variable from 0 dB to -18 dB at highest Q setting and from 0 dB to -15 dB at lowest Q setting.

  • High Frequency Shelving/Peaking: Selectable filter type: Shelving or Peaking. Center Frequency is continuously variable from 1.5kHz to 20kHz. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB in Peaking mode and from -15 dB to 15 dB in Shelving mode.

Applications


  • Software Plug-ins

  • Digital Audio Workstations

  • Digital Mixing Consoles

  • Hardware Effect Processors

Contact


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Copyright © 2005- Boğaç Topaktaş