Home Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

[ Follow Ups ] Thread: [ Display  All  Email ] [ Propeller Head Plaza ]
[ Alert Moderator ]

Re: Please retract your misteaching above

"but it still needs filtering in the D/A process in order to work as intended."
Can you explain that please.

If you took a sine wave of the amplitude of an LSB and quantized it with dither, you'd see the sine wave represented as the LSB randomly triggered, with higher density near the peaks, and lower density near the zero points. If you played this digitized signal back *without* filtering in the D/A process, the output would be that randomly-triggered LSB. Now if did apply filtering, convolving the randomly-triggered LSB with a "sinc" function (the most-common of the D/A filter algorithms), and calculated the results into words of greater length than the raw data (a 24-bit DAC), the result will be an approximation of the sine wave that is close to the pre-digitized waveform. The extra bits in the digital filter's output enable the signal to be approximated below the media's LSB.
Affordable Health Care

This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  

Follow Ups Full Thread
Follow Ups
You can not post to an archived thread.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]