What problem does it solve? Writing audio DSP code that runs on a real-time audio thread without dropouts, zipper noise, or data races is error-prone. This Skill provides a structured workflow for designing thread-safe audio architectures, implementing RT-safe filters and spectral analysis, and testing them correctly. ## Core Features & Use Cases - RT-Safe DSP Implementation: Provides ready-to-use Biquad filter (Direct Form II Transposed), parameter smoothing, and STFT pipeline code with strict real-time constraints (no allocation, no locks, no IO on the audio thread). - Lock-Free Concurrency Wiring: Includes an SPSC queue template for passing events from the audio thread to worker threads using correct memory ordering. - Testing & Optimization Guidance: Covers impulse response tests, stability tests with white noise, edge cases (0 Hz, Nyquist, silence), and SIMD/vectorization tips. - Use Case: You are building a lowpass filter that users can sweep in real time. Use this Skill to implement the Biquad, smooth the cutoff parameter to avoid zipper noise, and push visualization data to a worker thread via an SPSC queue. ## Quick Start Use the audio-dsp skill to implement an RT-safe lowpass Biquad filter with smoothed cutoff control and an SPSC queue for metering output.
