<div dir="auto"><br><br><div class="gmail_quote" dir="auto"><div dir="ltr">On Thu, Jul 19, 2018, 08:50 Tim Ressel <<a href="mailto:timr@circuitabbey.com">timr@circuitabbey.com</a>> wrote:</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF">
<p>Someone mentioned oversampling the NCOs and decimating. It seems
to me the act of decimation just brings the problem back. Why not
just filter the NCO straight and skip the oversampling/decimation?</p></div></blockquote></div><div dir="auto"><br></div><div dir="auto">because you already have inherent aliasing by simply creating the saw/square wave at F_s, you cannot filter it out afterwards.</div><div dir="auto"><br></div><div dir="auto">so you have to either create the wave at a much higher sample rate, filter and decimate down. or you create it already with less aliasing using BLIT, BLEP, DPW etc...</div><div dir="auto"><br></div><div dir="auto"><br></div><div class="gmail_quote" dir="auto"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
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