![]() Apodization is one of the most widely used methods for reducing side lobes in. Has anyone had the chance to listen to this PS Audio PerfectWave DAC or to the Ayre CX-7e or C-5xe, or the Meridian G08.2 or 808. A new method for assessing the performance of signal processing filters in. information industry in the world, high speed and big. Slow/Smooth filters generally have a high frequency. linearly chirped apodized fiber Bragg gratings, dispersion, compensation. Fast/Sharp filters generally have the flattest, most extended treble response, yet are generally also the best at suppressing ultrasonic images from the final signal. This blog here has a post which tries to explain the filters main characteristics in plain english, but it also contains a link to a white paper presented at the AES with a lot of detail about them: One parameter of filter design is Fast or Sharp on the one hand, and Slow or Smooth on the other. PS Audio has launched a digital source based on this Wolfson chip: Wolfson has also released a DAC chip, WM8741, with 5 different filters to choose from:Įach one has its own trade-offs, but typically we can trade between phase linearity and the the presence of pre-echos. For some time now, two manufacturers, Ayre and Meridian have been inovating in DAC filters with the Apodizing filters and lately Minimum Phase Apodizing filters.
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