Todays microcontrollers are already capable of processing real-time audio. But if you want to bring down the latency as low as possible, you can use an FPGA – its even faster than modern DSPs that typical use several samples as buffer. The following logic contains a stereo dynamic compressor with controllable threshold, ratio and makeup-gain….
Do you want to know more about StageConnect? Its a connection to transmit 32 uncompressed audio-channels via a single XLR cable. StageConnect is based on A2B, the Automotive Audio Bus (A2B).
A kind of diary of reverse engineering the Behringer X32 to finally process audio with my own audio algorithms within the original audio DSPs… My original plan was to publish a new blog-entry every week. But my current projects got much bigger than I’ve initially planned. So for the sake of the projects, I will…
In this final episode I’ll show how I implemented data-exchange with my card using IRQ and the development of some ShellExtensions and ControlPanel-applets for Windows98. Fixing the SRAM Last time I had some problems with my second SRAM producing noise. It turned out, that I missed two additional lines in the documentation: besides the chip-select…
In part 2 of this series I will show my progress on developing a DIY PCI Card using Alteras FLEX10K FPGAs. Last time I reverse-engineered an old Altera development-board I’ve found on eBay. Unfortunately there was absolutely no documentation about this card so I had to track all traces on the PCB by myself. Of…
Ethernet on Microcontrollers is available without problems: using FreeRTOS or the Arduino-libs is always a good start. But for FPGAs? I was shocked how expensive Ethernet is for FPGAs – but I found a good solution… In 1997 I bought my first NE2000-compatible ISA-Ethernet-Card for my Windows 95 computer. Why? Well, not that my 13-year-old…
Without the possibility to adjust the volume of individual frequency bands within an audio signal, modern audio would not sound the same. Today I’d like to show how I’ve implemented a EQ within my FPGA audio-mixer. In this blog-post I won’t describe the general idea of an EQ, because there are more capable persons available…
Based on my Audioplayer-project I developed a DIY card for the Behringer X32. In addition to the youtube-video here you will find some more detailed information about this project and the implementation. Definition of reverse-engineering by Elliot J. Chikofsky: “Reverse-engineering is the process of analyzing a subject system to identify the system’s components and their interrelationships…
In this video I’m testing the DIY Expansion-Card for the Behringer X32 audio-mixing-console with the Room-EQ-Wizard-Software and I’m showing the new workflow using XTouch-Controllers and more things. With a live-mixed 64-channel song I’d like to celebrate 6.400 subscribers. Thank you so much for your interest, the support and the nice feedback via eMail or the…
Join Elektor editors Brian Tristam Williams and Jens Nickel for the Lab Talk, where we’ll explore FPGA-based audio processing with Dr. Christian Nöding. We’ll discuss Christian’s FPGA audio player project and touch on other related topics, including audio latency and Bluetooth LE What’s on the agenda?
