This sound features a classic acid bassline built from a sawtooth oscillator playing a 16-step pattern in F# minor at 125 BPM. Each note undergoes a hard clipping distortion before passing through a time-varying low-pass filter sweeping from 200 Hz to 2000 Hz, simulating the iconic TB-303 squelch. Resonance is emulated by mixing a band-pass filtered layer centered around the cutoff frequency back into the signal, creating a pronounced whistle effect. The sound is widened with a short stereo delay on the right channel and slight EQ differences, producing a subtle stereo image from the originally mono source.
It fits well in acid house, techno, and other electronic styles around 125 BPM. Use it as a rhythmic bassline or lead, layering with sub-bass for weight or adding external distortion for extra grit. Watch for its midrange presence and resonance peaks, which may compete with other elements in the mix.