PRISM

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An audio filter for the 21st Century

Eilex PRISM utilizes a VIR Filter, a revolutionary new audio filter that surpasses the limitations of FIR and IIR filters.

  • Far less computing power needed for the same filter resolution

  • Unequaled filter resolution in the bass range

  • Minimum-phase filter

  • Intelligent resource allocation — extremely flexible

  • High resolution support without reducing resolution

  • Minimum phase

A minimum phase filter is a specific type of audio filter that has the shortest possible group delay for its given magnitude response. In other words, it is designed to introduce the least amount of delay or phase distortion while still achieving the desired frequency response.

Minimum phase filters are important in audio processing because they help preserve the temporal relationships between different frequencies, maintaining the original waveform’s shape and reducing audible artifacts. They are often used in equalizers, crossovers, and other audio processing applications where maintaining signal integrity is crucial.

In a filter, the phase response represents how each frequency component of the input signal is delayed or advanced in time when passing through the filter. A minimum phase filter has a phase response that is directly related to its magnitude response, which means that the phase distortion is minimized while still achieving the desired changes in frequency response. This is important because it helps maintain the integrity of the original signal by preserving the temporal relationships between different frequencies.

Available on All Major Chip Brands

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