BTE Audio has extended its line of Equalization Algorithms with the BEQ5, a high performance digital equalization algorithm that simulates the sound and feel of the world-renowned British Mixing Consoles of the 1980s. With its proprietary topology, the BEQ5 algorithm simultaneously achieves both absolute sonic accuracy and extremely high processing efficiency. Targeted at desktop and embedded professional audio applications, the BEQ5 algorithm will enable "quality-conscious third-parties to incorporate the highly revered British EQ sound into their products".

BEQ5 - 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 BEQ5 Algorithm accurately and efficiently simulates the "earlier" version of these modules in the digital domain with its meticulously designed topology (BEQ4 simulates the latest version of these modules).

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:

BEQ5 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: Center Frequency is continuously variable from 40Hz to 450Hz. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB.
• Low Mid Frequency Peaking: Center Frequency is continuously variable from 60Hz to 2.2kHz. Quality Factor(Q) is continuously variable from 0.5 to 4.5. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB.
• High Mid Frequency Peaking: Center Frequency is continuously variable from 600Hz to 20kHz. Quality Factor(Q) is continuously variable from 0.5 to 4.5. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB.
• High Frequency Shelving: Center Frequency is continuously variable from 1.5kHz to 16kHz. The amount of boost or attenuation is continuously variable from -18 dB to 18 dB.

Applications:

• Software Plug-ins
• Digital Audio Workstations
• Digital Mixing Consoles
• Hardware Effect Processors

BEQ5 Demo

In order to demonstrate the sound and performance of the BEQ5 Algorithm, BTE Audio has integrated it into a VST Plug-in. Please note that BEQ5 Demo requires a WIBU Systems CodeMeter Stick and it is only available to well-established audio hardware and software manufacturers.