<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks very much. This is the answer for me!</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Best,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Peiman</div></div><div class="gmail_extra"><br clear="all"><div>
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<br><br><div class="gmail_quote">On 28 October 2013 10:27, Funs Seelen <span dir="ltr"><<a href="mailto:funsseelen@gmail.com" target="_blank">funsseelen@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div class="gmail_extra"><div class="im">On Mon, Oct 28, 2013 at 10:05 AM, peiman khosravi <span dir="ltr"><<a href="mailto:peimankhosravi@gmail.com" target="_blank">peimankhosravi@gmail.com</a>></span> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-family:arial,helvetica,sans-serif">Since I'm on a mailing spree: how can I make a pd version of slide~ (MSP), which, according to the msp reference, is a logarithmic lowpass filter for smoothing envelops. Anything similar will do. I'm using vline~ for now to smooth out midi faders but it doesn't feel quite the same. </div>
<div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">And on a related subject: what is the best way to create an exponential signal ramp?</div>
<div style="font-family:arial,helvetica,sans-serif"><br></div></div></blockquote></div><div dir="ltr"><br><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">[vline~] is not a lowpass filter, so I guess you use [vline~] to control a signal controlled lowpass filter. To make this exponentional you could connect [vline~] to the right inlet of [pow~] and make sure the output of [vline~] is [0-1] (and never exceeds 1). Then choose your range (e.g. [500-1000]). Connect [sig~ 2] to the left inlet of [pow~] and multiply the output by 500. To scale the range, just use [*~] or [/~] and never [+~] or [-~], for you're working on an exponential scale. This means that an output of 0 is impossible, so for a logarithmic amplitude control choose a very large range (e.g. 1-100000) and divide the output by the same value to get the range [1/100000-1].<br>
<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hope this helps.<br></div><br></div></div></div></div>
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