AEQ4

American Console Equalizer Algorithm

Smooth, proportional Q bands and inherently musical filters have defined the distinctive characteristics of channel equalizer modules designed for American consoles in the late 1970s. The AEQ4 Algorithm accurately and efficiently simulates these characteristics 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


AEQ4 American Console Equalizer Algorithm features three overlapping bands and low pass/high pass filters which have the following specifications:

  • High Pass Filter: 12dB per octave slope. Cutoff Frequency is continuously variable from 20Hz to 3kHz.

  • Low Pass Filter: 12dB per octave slope. Cutoff Frequency is continuously variable from 200Hz to 20kHz.

  • Low Frequency Shelving/Peaking: Selectable filter type: Shelving or Peaking. Center Frequency is continuously variable from 40Hz to 800Hz. The amount of boost or attenuation is continuously variable from -12 dB to 12 dB in Peaking mode and from -16 dB to 16 dB in Shelving mode.

  • Mid Frequency Peaking: Center Frequency is continuously variable from 400Hz to 8kHz. The amount of boost or attenuation is continuously variable from -12 dB to 12 dB.

  • High Frequency Shelving/Peaking: Selectable filter type: Shelving or Peaking. Center Frequency is continuously variable from 800Hz to 16kHz. The amount of boost or attenuation is continuously variable from -12 dB to 12 dB in Peaking mode and from -16 dB to 16 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