Add a per-channel input_level meter (post pre-gain, peak-with-decay) and use it
to shade the gain curve: a translucent fill under the curve from the floor up to
the current input, its right edge riding the curve (width = input, height =
output), plus a dot at the operating point. Add -6 dBFS reference lines on both
axes with a tick label.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a per-channel below-threshold shaper composed in series ahead of the comp:
gain = low_shape(level) + comp(level + low_shape(level)). The compressor's
threshold now sees the shaped level, so a Low Slope boost lifts quiet material
up into compression (and a cut pulls it out). Anchored at the -60 dB silence
floor. Low Curve bends the shaper toward a bounded saturation so the serial
composition doesn't blow up (0 = straight line).
gain_computer split into comp_gain_db + low_gain_db and composed; shared with
the editor gain-curve display. Slider order rearranged to read in signal order
(pre-gain -> low shaper -> compressor -> output). Defaults (slope 1, curve 0)
reproduce the plain compressor; 17 tests pass.
Known: the bipolar behaviour isn't final yet (milestone commit).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add editor/gain_curve.rs: a square panel beside the scrolling plot showing the
channel transfer (out vs in, -60..0 dB) for whichever channel the plot tab
selects. Plots the full wet path — out = (in + pre_gain) + gain_reduction + makeup
— using the shared Compressor::gain_computer (now pub) so it matches the DSP and
the GR meter. Unity-reference diagonal + threshold marker; mix not folded in.
Update README structure/status to reflect the editor/ widget module and the
completed Stage 6 visualisers.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Flag each plot bucket with whether the output limiter hit the ceiling
(limiter GR > 0.1 dB), carried through ScopeRing as a per-bucket hit field and
folded into history columns. The editor draws a short red tick at the top of any
hit column (one column wide, so runs merge into segments and a lone hit is a
dot); nothing otherwise. Global marker, shown on every channel tab.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the per-channel bypass toggle with a smoothed dry/wet `mix` (0..100%,
default 100%). The blend is applied at the compressor output:
out = delayed_input * ((1 - mix) + mix * wet_gain)
Dry and wet share the same delayed input, so it's phase-aligned (parallel
compression, no comb filtering). mix=0 is bit-identical to the old bypass.
The detector now runs even at mix 0, so the GR meter shows the wet gain
reduction regardless of mix, while the level/plot out trace reads the mixed
output. "Bands at 0% = simple full-band comp via All" still holds.
Update README + parameter docs (bypass -> mix).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the two plain crossover sliders with a horizontal log-frequency strip
(LOW/MID/HIGH) and two draggable handles, plus number boxes (double-click to
type). Handles and boxes enforce a dynamic limit so lo/mid never crosses
mid/hi, on top of each param's own range. Lives in the editor/ widget module.
Known limitation: the lo<=hi limit is editor-only, so host automation can write
the two params past each other (briefly inverting the mid band). The DSP clamps
to monotonic, but FL's automation can misbehave once inverted. Left as-is.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Feed the scrolling plot from a lock-free SPSC ScopeRing instead of sampling one
atomic per egui frame, so horizontal resolution is set by the audio-clocked
bucket rate (~200 Hz) rather than the ~60 fps repaint. process() accumulates a
bucket every sample_rate/BUCKET_HZ samples (peak-preserving, spanning blocks)
and pushes it; the editor drains all new buckets each frame and folds them into
PLOT_N columns. Fast transients between frames are no longer dropped, and the
plot is now audio-clocked (freezes on pause, falls to silence on stop/reset).
Drop the per-frame plot_* atomics (the per-channel lamp now reads the decayed
bar level). Also fix the area fill: render it as a strip of per-segment convex
quads instead of one concave polygon, which egui fan-filled from a corner and
left stray triangles.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Draw a translucent area from each level line down to the plot baseline so the
input and output traces read more clearly. The gain-reduction trace stays a
plain line (it hangs from the 0 dB line, where a fill would read oddly).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the single global ceiling lamp with one lamp per channel cluster.
Each latches when that channel's output reaches 0 dBFS (a hot/over warning,
handy when pre-gain drives a band); the ALL channel additionally lights on a
real output-limiter catch. Same latch/hold/click-to-clear behavior, now per
channel.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Move the egui editor from a single editor.rs into an editor/ module: mod.rs
(aggregator: create(), EditorState, layout, placeholder slider columns),
meter.rs (|L|GR|R| meters + ceiling lamp, owns MeterState), and plot.rs
(rolling in/out/GR plot, owns PlotState + PlotHistory). Each visualiser owns
its GUI state; the aggregator composes them. No behavior change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Mikkeli Matlock