This week, discover the world of audio processing with this in-depth Elektor Webinar hosted by Brian Tristan Williams and our Editor-in-Chief Jens Nickel, together with Clemens Valens, the innovative creator behind the Elektor Audio DSP FX Processor board. This session explores in detail the design and programming of that versatile audio processing device.

The Elektor Audio DSP FX Processor board is a compact platform built for audio enthusiasts and professionals. Featuring the ADAU1701 DSP, it integrates seamlessly with an ESP32 microcontroller for added functionality, including Wi-Fi and Bluetooth connectivity. Clemens explains how the board supports real-time DSP programming, using Sigma Studio for graphical algorithm development and an Arduino library he designed for simplified coding and deployment. The board supports both live programming for development and EEPROM storage for standalone operation.

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Discover the technical innovations behind this board, such as the inclusion of MIDI input/output with optoisolators for compatibility, and flexible control options via potentiometers or MIDI control messages. The video explores the board’s I²S configurations for high-bandwidth audio streaming and explains how its modular design allows easy integration into bigger systems. Clemens also highlights practical use cases, from creating real-time audio effects and stereo channel separation to building Bluetooth streaming devices or custom synthesizers.

The webinar is packed with technical information and covers topics like latency optimization, compatibility with various MIDI devices, and the flexibility of the board’s analog and digital inputs. Its designer also shares details about programming tools, available resources, and examples of included DSP algorithms. Don’t miss the video below, it’s full of valuable insights and technical expertise for audio enthusiasts and for anyone curious about digital signal processing! Watch the video here:

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Want to discover more about microcontrollers, signal processing, or electronics in general? Check out all the educational videos and tap into the knowledge of experts on our Elektor YouTube channel and our Elektor Industry YouTube channel. Subscribe to Elektor's weekly newsletter to receive a regular flow of expert tech knowledge and insights.