set_mixer_control! applies global LPF, HPF, and amplitude adjustments to all Sonic Pi output

set_mixer_control! opts: value modifies the master mixer that all Sonic Pi audio passes through. Supported opts include lpf:, hpf:, amp:, and pre_amp:. Corresponding _slide opts create smooth transitions. reset_mixer! restores defaults. Useful for dramatic performance gestures — e.g., slowly filtering the mix to muffled bass then sweeping back — without modifying individual live_loops.

Examples

set_mixer_control! lpf_slide: 16, lpf: 30 sleep 16 set_mixer_control! lpf_slide: 1, lpf: 130

Assessment

Use set_mixer_control! to create a filter breakdown: LPF sweeps from 120 to 30 over 8 bars, holds, then sweeps back. Explain why this affects all sounds simultaneously.