PEQ1

Program Equalizer Algorithm

The idea is simple. First we took two of the world's most sought-after vintage program equalizers and added some luxury features like opto-coupler based switching circuitry for noise-free switching of individual bands, audiophile-grade variable inductors and capacitors for continuously variable center frequencies and toroidal power transformers for avoiding hum and noise injection through electro magnetic interference. Then we applied our unique approach to the modelling and simulation of dynamic systems to develop a custom algorithm that accurately and efficiently simulates the wonderfully smooth musicality of the resulting circuitry in the digital domain. And the PEQ1 is born.

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


PEQ1 Program Equalizer Algorithm features five overlapping bands which have the following specifications:

  • Low Frequency Shelving with simultaneous boost (0 to 16 dB) and attenuation (0 to -20 dB). Center Frequency is continuously variable from 16 Hz to 200 Hz (from 20 Hz to 150 Hz in the demo version).

  • Low Mid Frequency Peaking with continuously variable bandwidth, center frequency and gain. Center Frequency is continuously variable from 80 Hz to 4 kHz (from 100 Hz to 1500 Hz in the demo version). The amount of boost is continuously variable from 0 dB to 18 dB with sharp bandwidth and from 0 dB to 10 dB with broad bandwidth. And the amount of attenuation is continuously variable from 0 dB to -12 dB with sharp bandwidth and from 0 dB to -10 dB with broad bandwidth.

  • Mid Frequency Peaking with continuously variable bandwidth, center frequency and gain. Center Frequency is continuously variable from 80 Hz to 16 kHz (from 1 kHz to 10 kHz in the demo version). The amount of boost is continuously variable from 0 dB to 18 dB with sharp bandwidth and from 0 dB to 10 dB with broad bandwidth. And the amount of attenuation is continuously variable from 0 dB to -12 dB with sharp bandwidth and from 0 dB to -10 dB with broad bandwidth.

  • High Mid Frequency Peaking with continuously variable bandwidth, center frequency and gain. Center Frequency is continuously variable from 80 Hz to 16 kHz (from 2 kHz to 16 kHz in the demo version). The amount of boost is continuously variable from 0 dB to 18 dB with sharp bandwidth and from 0 dB to 10 dB with broad bandwidth. And the amount of attenuation is continuously variable from 0 dB to -12 dB with sharp bandwidth and from 0 dB to -10 dB with broad bandwidth.

  • High Frequency Shelving with simultaneous boost (0 to 16 dB) and attenuation (0 to -20 dB). Center Frequency is continuously variable from 3 kHz to 20 kHz.

Applications


  • Software Plug-ins

  • Digital Audio Workstations

  • Digital Mixing Consoles

  • Hardware Effect Processors

Contact


For more information please feel free to contact us at:

  


Copyright © 2005- Boğaç Topaktaş