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From Our Research Team:

The Legendary Sony Oxford EQ for Pro Tools HD!

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There are a number of reasons why the Sonox Oxford EQ plug-in has become the EQ of choice for the quality conscious audio professional. First of all, the Oxford EQ was created by the same team that designed the Sony Oxford OXF-R3 console. The Oxford OXF-R3 is considered to be one fo the best sounding consoles ever made, which comes as no surprise considering that the designers were the original design team that poroduced the SSL E series consoles. This team of audio fanatics whose underlying design philosophy is sound quality first, used the exact algorythms they created for the OXF-R3 console in the Oxford EQ plug-in.

Sony Oxford EQ HD at a Glance:

• 48-bit double precision calculations on the fly for analog response.
  
• Four types of EQ.
  
• De-cramping algorythm maintains high frequency energy.

On the Fly Calculations for Analog Response
The concept behind Sony's Oxford EQ plug-in is to provide an EQ that does what an analog EQ does and then add in the extra features that only digital technology can provide. Most EQ plug-ins are based on a lookup table. That means when you sweep through the frequencies and gain control, you are actually sweeping through presets. Your settings are determined by the software designer's choices, not yours, or the requirements of the music. The Sony Oxford EQ does its calculations on the fly using 48-bit double precision calculation. The result is that you get the frequencies you select, not the software designer.

4 Selectable EQ Types
The Oxford EQ also features 4 different selectable EQ types that cover the EQ styles currently popular amongst professional users, including some legacy styles which are renowned for their artistic capability. It is a fully functional 5-band application with selectable shelf settings on LF and HF sections. Additionally, separate variable slope low pass and high pass filters are provided.

Sony Oxford EQ Types:

• Reciprocal/Symmetrical Q, a linear EQ derived from the SSL E series consoles.
  
• Oxford Specialty super-narrow Q for surgical correction of frequencies.
  
• British EQ: A buzzword of EQs, what this means is that the Q reacts along with the boost control for a more musical EQ. As you boost, the Q is tightening, which is what the human ear expects.
  
• Oxford Specialty Constant Power EQ. This EQ is most useful for mastering. It features a super-wide Q and provides subtle change over a wide spectrum.

Oxford EQ's Prime Feature: De-Cramping
In most EQ plug-ins, if you select a frequency and boost, the graphic display shows an even curve upwards and downwards around the center frequency. Due to the calculations necessary at 1/2 the Nyquist theorem for the downward slope, hi-frequency cramping occurrs so that most of the energy is in the upward slope or lower frequencies. This means that while your GUI shows a boost at 14k, you're actually boosting at about 8k due to the cramping in the downward slope. The Sony Oxford EQ reshapes the down side of the slope as the inverse of the upward slope so that the high frequency energy is equal on both sides of te center frequency.

The use of novel coefficient generation and intelligent processing design provides unparalleled performance that surpasses analogue EQ in both sound quality and artistic freedom. This plug-in may well provide all the EQ you will ever need.

Sony Oxford EQ HD Features:

• Five band parametric design
  
• Selectable shelf settings on LF and HF sections
  
• LF and HF Filters providing up to 36dB/Octave slope
  
• Four selectable EQ types
  
• Fully decramped HF response
  
• Support for sample rates up to and including 96kHz
  
• Fully automatable (including separate automation for A and B settings)
  
• Includes six plugins in total for optimal DSP usage
  (Mono and Stereo versions of EQ, Filters, and EQ and Filters)

The classic sound of the OXF-R3 in a plug-in with the Sonnox Oxford EQ!

Specification Detail Kind EQ Notes TDM/RTAS Manufacturer Part Number PTHREQG4

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