Paradigm Persona 3F Persona Series Manual - Page 25

ANTHEM ROOM CORRECTION (ARC™) - Persona 9H Only A True Scientific Solution to the Problems of the Room Anthem Room Correction Technology is a proprietary digital signal processing system that allows you to quickly and accurately optimize the performance of your PERSONA 9H to better suit the unique parameters of your room. By listening to your room's acoustic signature, ARC can tune your equipment to correct for the performance-robbing effects (reflections, resonances, standing waves, etc.) of the various surfaces and other obstacles in your room. ARC is easy to use, and just a few simple steps can customize your PERSONA 9H for your unique listening space. ARC is sophisticated, one of the most accurate and detailed digital room correction technologies available today. ARC will work tomorrow, too; with constant advances and updates available for download on the Anthem website. WHY ARC? ARC is a state-of-the-art room correction system that analyzes bass response in your room, and then sets the correct equalization parameters to attain optimal sound. ARC improves bass response and enhances seamless dynamic blending. Computer-assisted ARC applies super-efficient Infinite Impulse Response (IIR) Filters, in addition to Custom Filter Topology, to minimize delay and reduce processing noise. If any audio artifacts could overcome this unique combination of IIR plus Custom Filtering, they would be so small as to be completely inaudible. ARC is just that effective. ARC allows for multiple microphone measurements. Most room equalization methods work from only a single point source, taking one measurement at the "primary listening position." ARC measures room response from at least five user-selected measurement points (up to ten positions may be measured), beginning with a "main measurement position." Additional measurement positions are symmetrically spaced a minimum of 2 feet from the first position (see diagram). This multimeasurement process ensures optimal bass performance throughout the listening area. Unlike other "Room EQ" systems, ARC applies correction to peaks (modes) and dips (anti-modes). Correcting both allows ARC to achieve a far more accurate and natural room response. To limit the demands on the amplifier and maximize signal-to-noise ratio, ARC applies appropriate limits to this correction. ARC is Ultra-Accurate! Your own computer's 64-bit floating-point processor does the hard work of calculating the correction curves, which greatly minimizes the rounding errors common with less sophisticated room correction systems HOW DOES ARC WORK? The "room correction" process begins when a test signal generated from your speaker and is picked up by the ARC calibrated microphone. The system then runs a frequency sweep to highlight possible problem areas and determine necessary adjustments. Once your ARC measurements are captured by the microphone and saved on the connected PC, the optimized solutions are calculated by ARC and uploaded to your speaker. You will hear the difference, with more realistic, better-blended bass response. 20