Real‑Time Audio in C++: Your First DSP App with PortAudio
Learn real-time audio programming by building your first C++ DSP app with PortAudio. We sample at 48 kHz, process in a low‑latency callback (256 frames), and route mic → speakers in real time—then extend it with simple effects.
What you’ll learn:
1. DSP fundamentals: sampling, buffers, Nyquist, latency
2. PortAudio basics: init, stream config, high‑priority callback
3. Practical C++: safe error handling, clean teardown
4. Extensions: gain, filters, delay, soft limiting
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