<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="">Ooh, that's an interesting idea!<div class=""><br class=""></div><div class="">I'd have to sit down and have a bit of a think about it and do a few calculations, but that's really a lovely idea. Being able to run something like the cheap MCP4922 dual DAC as a u-law "higher res" audio DAC would be a very nice trick to pull off. <div class=""><br class=""><div class="">Tom<br class=""><div class=""><br class="Apple-interchange-newline">
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<div><br class=""><blockquote type="cite" class=""><div class="">On 20 Dec 2022, at 13:42, mark verbos 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=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Couldn’t one do something like that to replace an AM6070 µ-law DAC?<div class=""><br class=""></div><div class="">Mark<br class=""><div class=""><br class=""></div><div class=""><br class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Dec 20, 2022, at 12:41 PM, Florian Anwander <<a href="mailto:fanwander@mnet-online.de" class="">fanwander@mnet-online.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class="moz-cite-prefix">Hi<br class="">
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Am 19.12.22 um 22:54 schrieb Didier Leplae via Synth-diy:<br class="">
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<blockquote type="cite" cite="mid:C5AFEECF-D741-4BD5-A921-B346620F6609@yahoo.com" class="">
<pre class="moz-quote-pre" wrap="">Ah yes, a separate output for octaves is brilliant!</pre>
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btw Scott rider aka Old Crow used a similar trick to achieve Hz/V
characteristics with an 8Bit:<br class="">
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<a class="moz-txt-link-freetext" href="https://github.com/cs80/CS15_SSK/">https://github.com/cs80/CS15_SSK/</a><br class="">
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He uses a dual channel DAC MCP4922. DAC #1 is providing different
reference voltages for each octave, which then are used by the DAC
#2 which converts the same twelve note data to a spreading CV the
higher the octave / refence voltage from DAC#1 respectively is.<br class="">
<br class="">
Florian<br class="">
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