Tag: FGPA

FPGA-Based Alias-Free Oscillator – 岡安啓幸 / Akiyuki Okayasu – ADC Japan 2026

https://audio.dev/ -- @audiodevcon​

FPGAベースのエイリアスフリー・オシレーター - 50MHz駆動の波形生成と1bit ΔΣ DACの実装 - 岡安啓幸 / Akiyuki Okayasu - ADC Japan 2026

廉価なFPGAの50MHz駆動を活かし、可聴域を遥かに超える超高サンプルレートで波形を生成するオシレーターの実装手法を解説します。 ビット深度ではなく超高サンプルレートにリソースを集中させることで、100kHz以上の倍音をエイリアスフリーに出力します。 演算から1bit ΔΣ DACによる音声出力まで、マイコンや外付けDACに頼らずチップ内部で完全統合する実践的なノウハウを共有します。
---

岡安啓幸 / Akiyuki Okayasu

モジュラーシンセメーカーGroundless Electronicsの創設者・エンジニア。 オーディオ信号処理技術を活かした自作ソフトウェアでの音楽制作を起点に、2017年頃よりハードウェア開発へ領域を拡大。アナログ回路やMIDI機器の設計を経て、2022年よりユーロラック・モジュラーシンセの製造販売を開始。 自身の音楽作品（Shin Sasakubo & Akiyuki Okayasu『invisible flickers』等）の発表に加えて、エンジニアとして様々なアーティストの作品制作や展示の技術サポートも手掛けている。

Founder and engineer of the modular synthesizer manufacturer, Groundless Electronics. Starting from music production using custom software built on audio signal processing technologies, he expanded into hardware development around 2017. After designing analog circuits and MIDI devices, he began manufacturing and selling Eurorack modular synthesizers in 2022. In addition to releasing his own musical works (such as invisible flickers by Shin Sasakubo & Akiyuki Okayasu), he provides technical support as an engineer for various artists' music productions and exhibitions.
---

ADCは、音楽アプリケーションやゲームオーディオから、オーディオ処理、組み込みシステムにいたるまで、あらゆるオーディオ開発技術を称える年次イベントです。ADCの使命は、参加者が新しいオーディオ開発スキルを習得・向上させ、オーディオデベロッパーとしてのキャリアを支えるネットワークを構築できるよう支援することです。
ADC年次カンファレンス - https://audio.dev/
https://www.linkedin.com/company/audiodevcon

https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
---

編集：Digital Medium Ltd：https://online.digital-medium.co.uk
_

主催・制作：JUCE：https://juce.com/
_

#adc #audiodev #dsp #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #sound #music #musictech #soundtech #audiotech #audiotechnology

Filed under: UncategorizedTagged with: , , ,

Embedded Musical Signal Processing with Csound 7 – From Microcontrollers to FPGAs – Aman Jagwani

https://audio.dev/ -- @audiodevcon​
ADC Japan - 1st - 3rd June
ADC Bristol ​- 9th - 11th November​
---

Embedded Musical Signal Processing with Csound 7 - From Microcontrollers to FPGAs - Aman Jagwani
---

This talk will present new advancements in the sound and music computing system, Csound. With the newest major version upgrade, an expansion in the range of supported hardware to bare-metal and co-processing platforms has been added. These platforms include ARM Cortex microcontrollers, FPGA-based system-on-chips, and general-purpose GPUs. This provides users with the ability to design custom audio devices, pedals, synthesizers, interactive installations, etc., through abstracted hardware interfacing along with the familiarity and expansive signal processing capabilities of a mature language like Csound. In this talk, we will highlight the process of porting the system to these platforms, particularly the challenges in adapting it to environments without operating systems and, at times, with lower computational and memory resources. We then discuss implementations across different bare-metal ARM hardware platforms such as the Electrosmith Daisy. Following that, we will highlight the co-processing possibilities across general-purpose GPUs and FPGA-based SoC platforms. Lastly, we will end with a discussion of musical possibilities that these expanded platforms enable in the areas of composition, performance, and interactive installations.
---

Aman Jagwani is an audio programmer, musician and researcher from Mumbai, India, specializing in embedded audio research and open source musical programming and signal processing systems.
---

ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
https://www.linkedin.com/company/audiodevcon

https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
---

Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
---

Organized and produced by JUCE: https://juce.com/
---

Special thanks to the ADC team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#adc #audiodev #dsp #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #sound #music #musictech #soundtech #audiotech #audiotechnology

Filed under: UncategorizedTagged with: , , ,