Stefan Gretscher

Software Developer

Celemony

About Me

Stefan's career in audio programming has led him from hand-crafting bare-bones assembler on the DSP-based platforms of the late 90s to working on today's Melodyne with its roughly 250k lines of just the audio model and processing C++ code. Along that path, his focus shifted from signal processing to software architecture, programming languages and framework design.

With this background, Stefan is leading the development of the ARA Audio Random Access API at Celemony. What he maybe likes most about this is working closely with so many other devs in the industry, and he is looking forward to answering your questions about ARA at ADC.

Sessions

  • Sneak Peak at ARA 3.0

    Embracing Audio Synthesis
    12:20 - 12:50 UTC | Tuesday 11th November 2025 | Bristol 3
    Beginner
    Intermediate
    Advanced

    Since its public release over a decade ago, ARA Audio Random Access has grown into a widely supported industry standard. While originally designed to process audio input provided by the user, a lot of interest has sparked recently to extend ARA to also support audio generators that operate on abstract musical input. Example applications include singing voice synthesizers, or intelligent samplers which provide automatic musical adoption of pre-recorded content to the song context. ARA 3.0 will strive to cater for the needs of such generators without compromising its core designs, adding new APIs that shall be equally valuable for conventional, […]