Roger Dannenberg
Computer Scientist at Carnegie Mellon University
Pittsburgh, Pennsylvania, United States
Summary
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RockstarRoger Dannenberg is a computer scientist and emeritus professor based in Pittsburgh with a decade of hands-on software engineering experience. He blends academic rigor with practical engineering, contributing substantial backend work to high-profile open-source audio software like Audacity—fixing bugs, improving performance, and modernizing 32/64-bit compatibility in core audio and Nyquist synthesis modules. Comfortable diving into low-level audio processing, his commits reveal a deep understanding of signal handling, convolution, and cross-platform portability. Colleagues can expect a thoughtful problem-solver who bridges research-grade ideas and production-quality code, often uncovering subtle interoperability and performance issues that others miss.
10 years of coding experience
Stackoverflow
21reputation
0reached
1answer
0questions
Github Skills (11)
64-bit10
audio-applications10
audio-processing10
c-language10
cprogramming-language10
implement9
algorithm9
algorithms9
javascript6
email-validation6
regex6
Programming languages (5)
Github contributions (5)
audacity/audacity
Mar 2021 - Jun 2021
Audio Editor
Role in this project:
Backend Developer
Backend DeveloperContributions:11 reviews, 9 commits, 1 PR in 2 months
Contributions summary:Roger's commits primarily focus on modifications within the `lib-src/portsmf` and `lib-src/libnyquist` directories, suggesting work related to the core audio processing and synthesis capabilities of the Audacity project. These changes include bug fixes, performance enhancements, and adjustments to 32/64-bit compatibility, specifically within the allegro audio library. Additional commits are focused on improvements to the Nyquist code base, addressing bugs in the convolve module and modifying sample handling, demonstrating a deep understanding of the underlying audio processing engine.
audioeditorcross-platformwxwidgets-applicationsgplv2
rbdannenberg/portsmf
Nov 2021 - Apr 2025
PortSMF is a C library implementing access to Standard MIDI Files and Allegro files, which are a text representation for music sequences used in Audacity.
Contributions:20 reviews, 3 PRs, 7 pushes in 3 years 5 months
c-librarymidi
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