<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Or if [fexpr~] is too expensive...</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Mar 14, 2016 at 12:00 AM, Chris McCormick <span dir="ltr"><<a href="mailto:chris@mccormick.cx" target="_blank">chris@mccormick.cx</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 25/02/16 22:39, i go bananas wrote:<br>
</span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
real-time zero-crossing detection with sample-rate precision.<br>
</blockquote>
<br></span>
if (incomingSignal > 0 && previousIncomingSignal < 0 || incomingSignal <<br>
0 || previousIncomingSignal > 0) return 1;<br>
else return 0;<br>
</blockquote>
<br>
fexpr~ if (($x1[0] > 0 && $x1[-1] < 0) || ($x1[0] < 0 && $x1[-1] > 0), 1, 0);<br>
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Cheers,<br>
<br>
Chris.<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
<a href="http://mccormick.cx/" rel="noreferrer" target="_blank">http://mccormick.cx/</a></font></span><div class="HOEnZb"><div class="h5"><br>
<br>
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