PASS Parameter and Chinese UI state round trip
PASS Legacy state restores all new faders to unity
PASS Audio renders and bilingual editor snapshots
PASS 960 px window, adaptive 8-22 fader widths, 1/7/8/11/16/22/23/64 layout and wheel routing
PASS FFT controls, state persistence, mode-switch latency report
PASS Mode label survives repeated language changes
PASS Both modes support 128 bands; legacy 128-band state and last gain preserved
PASS Seven bilingual carriers save/restore; legacy sessions default to pink noise
PASS Actual GUI snapshots of identical 500 Hz input in CIS and both FFT extremes
PASS Fixed-seed pink: sample-exact replay, seek/loop restart and variable host blocks in CIS + FFT; max error 0
PASS Both modes render all seven carriers; finite audible output; pink-noise width zero is mono
PASS Mono input: all five periodic carriers are bit-identical L/R in CIS and all six FFT sizes, width 200%
Maximum mono L/R error: 0
PASS True stereo envelope differences are preserved; pink-noise carriers remain independent L/R
SRC 8000 Hz: reported filter delay 384, impulse peak 384 host samples
SRC 11025 Hz: reported filter delay 278.639, impulse peak 279 host samples
SRC 22050 Hz: reported filter delay 139.32, impulse peak 139 host samples
SRC 44100 Hz: reported filter delay 69.6599, impulse peak 70 host samples
SRC 48000 Hz: reported filter delay 0, impulse peak 0 host samples
PASS Actual sample-rate conversion: correct impulse timing, block-invariant, transparent at host rate, >60 dB alias rejection
48 kHz -> 8 kHz -> 48 kHz, 13 kHz rejection relative to 1 kHz: -133.282 dB
FFT 128: full PDC 509 samples; 3 ms budget PDC 160, taps 38
FFT 256: full PDC 1009 samples; 3 ms budget PDC 156, taps 37
FFT 512: full PDC 1516 samples; 3 ms budget PDC 160, taps 50
FFT 1024: full PDC 3018 samples; 3 ms budget PDC 160, taps 50
FFT 2048: full PDC 6026 samples; 3 ms budget PDC 160, taps 50
FFT 4096: full PDC 12028 samples; 3 ms budget PDC 160, taps 50
PASS Dynamic PDC follows all six FFT sizes, manual LF budget, mode and actual internal sample rate
PASS Processor bypass is original unquantised audio at exactly the reported total PDC, including SRC and FFT 4096
PASS 4.0 / 4.5 / 12.3-bit output follows fractional quantiser steps
PASS Maximum internal rate follows project rate; manual lower rate survives project-rate changes
PASS New parameters, FFT 4096 and Japanese language survive project state round trip
PASS One captured drag paints every crossed band, including skipped mouse-event lanes, without changing other bands
PASS Carrier-width control is enabled only for the two pink-noise carriers
PASS Three-language main/about snapshots, current-language cycling, title-click About / upper-right close, hidden main controls and return
Bandwidth initial: value 100, range 0..200, default check 1
Bandwidth sine: value 163.2, enabled 0, effective 100, cumulative 1
Bandwidth square: value 163.2, enabled 1, cumulative 1
Bandwidth restored: 163.2, cumulative 1
Bandwidth migrated: 100, cumulative 1
PASS Bandwidth knob: centred default, remembered disabled sine position, restored value, saved state and old-state midpoint migration
PASS 128 channels remain accessible in the same 22-column scrolling window
PASS Both processing methods have meaningful English, Chinese and Japanese labels without changing mode identities
