http://wehrend.github.io/tags/rp2040/Recent content in RP2040 on Bits & pieces - Sven WehrendHugoenMon, 21 Sep 2026 00:00:00 +0000http://wehrend.github.io/posts/web/38-from-sine-to-vocoder/Mon, 21 Sep 2026 00:00:00 +0000http://wehrend.github.io/posts/web/38-from-sine-to-vocoder/<div id="preamble"> <div class="sectionbody"> <div class="paragraph"> <div class="book-hint info"> <div class="paragraph"> <p>This article documents an ongoing debugging series. The vocoder sounds considerably better than it did at the start, but &#34;sounds like a proper vocoder&#34; hadn’t been achieved yet at the time of writing. I’ll update the conclusion once that changes.</p> </div> </div> </div> </div> </div> <div class="sect1"> <h2 id="_the_plan">1. The Plan</h2> <div class="sectionbody"> <div class="paragraph"> <p>I’m building a small hardware vocoder on a generic Raspberry Pi Pico (RP2040) — as a hardware port of my browser-based software vocoder (Tone.js/Web Audio). Ingredients:</p> </div>