Obscure audio codec fits N64
The gist
Developer Dominic Szablewski says ULC gives the N64 44100 Hz stereo audio using about 4% of CPU time.
The codec is credited with fitting a Half-Life port's audio into one 64MB cartridge.
How it unfolded
- Nov 3, 2026Szablewski publishes "Why this Obscure Audio Codec is a Perfect Fit for the N64" on phoboslab.org, describing ULC as giving 44100 Hz stereo at near-Opus bitrates for about 4% of CPU time.
- Nov 3, 2026He posts the article on X, where commenter @the_kovic says the Half-Life N64 port (HL64) has too many crackles and artifacts in its audio.
- Nov 4, 2026Commenter Salmorejo says "We are using it for our music, it runs and sounds great!"
Key terms
- codec
- A hardware or software component that encodes or decodes a data stream or signal.
Source: Wikipedia