Notes & references

Wiki

Interesting topics I’ve explored over the years: audio DSP building blocks with interactive plots, and modern C++ techniques.

Audio

A fixed-size, thread-safe ring buffer for real-time producers and consumers, with a full C++ implementation.

Second-order recursive filters: the transfer function, the difference equation, and why they get cascaded.

Each page has a live frequency-response plot

Passes below the cutoff, attenuates above it.

Passes above the cutoff, attenuates below it.

Passes a band around a center frequency.

Rejects a narrow band around a center frequency.

Flat magnitude, frequency-dependent phase shift.

Boosts or cuts a band around a center frequency.

Boosts or cuts everything below the cutoff.

Boosts or cuts everything above the cutoff.

Compile-time constraints on template parameters, and how they replace SFINAE boilerplate.