{"id":111,"date":"2024-01-15T09:00:00","date_gmt":"2024-01-15T09:00:00","guid":{"rendered":"https:\/\/www.tb-software.ch\/ai\/esp32-audio-projekt\/"},"modified":"2024-01-15T09:00:00","modified_gmt":"2024-01-15T09:00:00","slug":"esp32-audio-projekt","status":"publish","type":"post","link":"https:\/\/www.tb-software.ch\/ai\/esp32-audio-projekt\/","title":{"rendered":"ESP32 Audio-Projekt: Signal Generator &#038; Audio Processing"},"content":{"rendered":"<h1>ESP32 Audio-Projekt: Signal Generator &#038; Audio Processing<\/h1>\n<p>In diesem Projekt haben wir ein fortschrittliches Audio-System basierend auf dem ESP32 Mikrocontroller entwickelt. Das System kombiniert Signal-Generierung mit Audio-Processing-Funktionen f\u00fcr professionelle Anwendungen.<\/p>\n<h2>Projekt\u00fcbersicht<\/h2>\n<p>Das ESP32 Audio-Projekt umfasst:<\/p>\n<ul>\n<li><strong>Signal Generator<\/strong>: Erzeugung verschiedener Wellenformen (Sinus, Rechteck, Dreieck)<\/li>\n<li><strong>Audio Processing<\/strong>: Echtzeit-Audiobearbeitung und Filterung<\/li>\n<li><strong>WiFi-Konnektivit\u00e4t<\/strong>: Fernsteuerung \u00fcber Web-Interface<\/li>\n<li><strong>LCD-Display<\/strong>: Lokale Anzeige von Parametern und Status<\/li>\n<\/ul>\n<h2>Technische Spezifikationen<\/h2>\n<h3>Hardware<\/h3>\n<ul>\n<li>ESP32 DevKit V1<\/li>\n<li>I2S Audio Codec (MAX98357A)<\/li>\n<li>2.8&#8243; TFT LCD Display<\/li>\n<li>Rotary Encoder f\u00fcr Bedienung<\/li>\n<li>Externe Verst\u00e4rkerschaltung<\/li>\n<\/ul>\n<h3>Software<\/h3>\n<ul>\n<li>Arduino IDE \/ PlatformIO<\/li>\n<li>ESP-IDF Framework<\/li>\n<li>FreeRTOS f\u00fcr Multitasking<\/li>\n<li>Web-Server f\u00fcr Remote-Control<\/li>\n<\/ul>\n<h2>Implementierung<\/h2>\n<h3>Signal-Generierung<\/h3>\n<pre><code class=\"language-cpp\">void generateSineWave(float frequency, float amplitude) {\n    for (int i = 0; i &lt; BUFFER_SIZE; i++) {\n        float sample = amplitude * sin(2 * PI * frequency * i \/ SAMPLE_RATE);\n        audioBuffer[i] = (int16_t)(sample * 32767);\n    }\n}<\/code><\/pre>\n<h3>Audio-Processing Pipeline<\/h3>\n<ol>\n<li><strong>Input Capture<\/strong>: Mikrofoneingang \u00fcber I2S<\/li>\n<li><strong>Digital Filtering<\/strong>: Hochpass\/Tiefpass Filter<\/li>\n<li><strong>Effects Processing<\/strong>: Reverb, Echo, Kompression<\/li>\n<li><strong>Output<\/strong>: I2S Audio-Ausgang<\/li>\n<\/ol>\n<h2>Anwendungsbereiche<\/h2>\n<ul>\n<li><strong>Messtechnik<\/strong>: Kalibrierung von Audio-Equipment<\/li>\n<li><strong>Musikproduktion<\/strong>: Portable Audio-Effects<\/li>\n<li><strong>Bildung<\/strong>: Demonstration von Audio-Signalen<\/li>\n<li><strong>Prototyping<\/strong>: Schnelle Audio-Konzeptentwicklung<\/li>\n<\/ul>\n<h2>Ergebnisse<\/h2>\n<p>Das fertige System bietet:<\/p>\n<ul>\n<li>Frequenzbereich: 20 Hz &#8211; 20 kHz<\/li>\n<li>Sampling Rate: 44.1 kHz<\/li>\n<li>Bit-Tiefe: 16-bit<\/li>\n<li>Latenz: < 10ms<\/li>\n<li>WiFi-Steuerung mit responsivem Web-Interface<\/li>\n<\/ul>\n<h2>Fazit<\/h2>\n<p>Dieses Projekt demonstriert die Vielseitigkeit des ESP32 f\u00fcr Audio-Anwendungen. Die Kombination aus leistungsstarker Hardware und flexibler Software erm\u00f6glicht professionelle Audio-L\u00f6sungen zu einem Bruchteil der Kosten kommerzieller Systeme.<\/p>\n<p><strong>Interessiert an einem \u00e4hnlichen Projekt?<\/strong> Kontaktieren Sie uns f\u00fcr eine individuelle Beratung!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Entwicklung eines ESP32-basierten Audio-Systems mit Signal Generator und Audio Processing Funktionen f\u00fcr professionelle Anwendungen.<\/p>\n","protected":false},"author":1,"featured_media":110,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[14,11,6,10,13,12],"class_list":["post-111","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iot-embedded","tag-arduino","tag-audio","tag-embedded","tag-esp32","tag-iot","tag-signal-processing"],"_links":{"self":[{"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/posts\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111"}],"version-history":[{"count":0,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=\/wp\/v2\/media\/110"}],"wp:attachment":[{"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tb-software.ch\/ai\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}