audio-engineering-principles

Enforces real-time safety, determinism, and numeric hygiene rules for audio and DSP code.

Updated May 22, 2026
One-click install
npx skills add https://github.com/viniciuscs84/sdd-toolkit --skill audio-engineering-principles-viniciuscs84
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: audio-engineering-principles
Source: https://github.com/viniciuscs84/sdd-toolkit/tree/main/skills/audio-engineering-principles
Command: npx skills add https://github.com/viniciuscs84/sdd-toolkit --skill audio-engineering-principles-viniciuscs84

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Audio code running on real-time threads fails with glitches, dropouts, and nondeterministic behavior when developers allocate memory, lock mutexes, or mishandle floating-point math. This Skill defines invariant engineering standards so any DSP, audio analysis, audio systems, or JUCE code stays safe on the audio thread. ## Core Features & Use Cases - Real-Time Safety Rules: Prohibits heap allocation, locks, logging, file IO, syscalls, exceptions, and blocking calls on the audio thread, mandating preallocated buffers, lock-free queues, atomics, and ring buffers. - Determinism and Numeric Hygiene: Requires reproducible test vectors, denormal flush-to-zero handling, DC offset prevention, clipping control, and consistent multi-channel gain staging. - Structured Output Contract: Produces a design summary, public API, implementation, RT-safe tests, performance notes, and edge-case analysis for every audio request. - Use Case: When implementing a JUCE audio plugin filter, apply these rules to keep the processBlock callback allocation-free and document its complexity and memory behavior. ## Quick Start Apply the audio engineering principles to review my JUCE processBlock implementation for real-time thread safety and denormal handling.

Frequently Asked Questions about audio-engineering-principles

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I write real-time safe audio code?

Real-time safe audio code avoids heap allocation, locks, logging, file IO, syscalls, exceptions, and blocking calls on the audio thread. Preallocate fixed-size buffers during initialization and use lock-free queues, atomics, and ring buffers for cross-thread communication.

What operations are forbidden on an audio thread?

Forbidden operations include heap allocation, mutexes, console or file IO, syscalls, exceptions, dynamic container resizing, and any blocking call. All resources must be prepared in an initialization or prepare phase before audio processing begins.

How do I handle denormals in DSP code?

Handle denormals by enabling flush-to-zero so tiny floating-point values do not cause CPU spikes. Also prevent DC offset accumulation, control clipping, and maintain proper gain staging across all channels.

Does this apply to JUCE audio plugin development?

Yes, JUCE integration is an explicit consumer of these rules, so processBlock callbacks must follow the real-time safety constraints. The skill does not cover game-audio middleware or ffmpeg and video tasks.

What should performance documentation for DSP algorithms include?

Document Big-O complexity, memory usage, allocation behavior, vectorization opportunities, and cache friendliness for every algorithm. This makes the cost of running the code on a real-time audio thread explicit and reviewable.