<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 23 Oct 2021, at 10:52 pm, houshu--- via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">NEC uPC1252H2 uses a Blackmer cell, which were used in some Roland synths for loudness control, not for VCA with ADSR.</span></div></blockquote></div><br class=""><div class="">Sam, that’s interesting.</div><div class="">Do you recall how it was implemented, and in what synths?</div><div class=""><br class=""></div><div class="">“Loudness” suggests it was compensating for something.</div><div class=""><br class=""></div><div class="">A</div></body></html>