Wie funktionieren Software-Synthesizer Part 1: Oszillatoren (gpn24)

Wie funktionieren Software-Synthesizer Part 1: Oszillatoren (gpn24)

Author: CCC media team June 6, 2026 Duration: 51:18
Wir schauen uns die grundlegenden Bausteine eines Audio-Synthesizers an und wie man diese in Software umsetzen kann. In diesem Teil geht es zunächst um Oszillatoren: Wie entsteht der eigentliche Ton am Anfang der Signalkette bevor er durch Filter geformt wird? Wir fangen mit einem simplen Sinusoszillator an, erweitern ihn zu einem Sägezahnoszillator und schließlich zu einem allgemeinen Wavetableoszillator, wie er in heutigen Synthesizern verwendet wird. Bei jedem Schritt analysieren wir die auftretenden Probleme und welche Lösungen entwickelt wurden, um sie zu umgehen. Wir werden verschiedene Konzepte der Signalverarbeitung kennenlernen. Spezielle Vorkenntnisse in diesem Bereich sind jedoch nicht erforderlich. Stichworte: Nyquist-Shannon Theorem, Aliasing, Diskrete Fourier Transformation DFT/FFT Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/B8PSDB/

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Author: Episodes: 100

Chaos Computer Club - recent events feed
Podcast Episodes
Infrastructure Review & Closing (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:16:35
Große Zahlen und ganz viel WOW Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/MTP7YB/
WAF: Wrong Approach Firewall (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:01:42
Web Application Firewalls (WAFs) for filtering based on HTTP and payload are omnipresent. In this talk an argument will be made that, in many cases, the wrong approach for implementing WAFs is chosen: They are implemente…
Building video games with 20 year old tech (gpn24) [not-audio_url] [/not-audio_url]

Duration: 19:10
The market is full of high-performance graphics APIs like Vulkan and fantastic engines like Unreal and Unity. So, why not use DirectX 9 and a self-built engine instead? ;) In this talk we'll take a quick stroll down memo…
Three Languages, Triple the Confusion (gpn24) [not-audio_url] [/not-audio_url]

Duration: 20:21
This code runs without errors, but still confuses. In this talk, we explore some subtle quirks of C, Python, and Java (and others) that catch even experienced developers off guard. No bugs, no typos - just the language d…
MMO-CHIP: From Microscope to Verilog in an hour (gpn24) [not-audio_url] [/not-audio_url]

Duration: 58:45
Reverse engineering old custom chips from microscope pictures is cool, but oh so painfully slow! Last time I did this (talk at 38C3), I spent two weeks waking up, annotating wires in Inkscape, going to bed, and then drea…
DI.Days as Anarchist Practice/Anarchist Practices for DI.Days (gpn24) [not-audio_url] [/not-audio_url]

Duration: 44:54
Digital Independence Days are a response to the growing monopolization of technology and the recent loss of trust in US-based tech firms after the USA's shift towards authoritarianism. The (communicated) goal is to prote…