╔══════════════════════════════════════════════════════════════╗ ║ SPHINX 101 ║ ║ Signal Verification Report - v1.6.0 ║ ╠══════════════════════════════════════════════════════════════╣ ║ Report: Oversampling and Anti-Aliasing ║ ║ Generated: 2026-07-29 10:21 UTC ║ ║ Platform: macOS · Apple Silicon · TrueRail™ ║ ║ Standard: -6 dBFS operating level · 64-bit internal ║ ╚══════════════════════════════════════════════════════════════╝ Sphinx 101 - Oversampling and Anti-Aliasing Report Generated: 2026-07-29 10:21:58 UTC ===== SR1 - Sonic fingerprint across sample rates ===== Reference (48 kHz / 4x / 512): SLL THD=0.0752% H2/H3=0.433 Level=-11.574 dB Phase=-106.8 deg Nevy THD=0.1761% H2/H3=2.823 Level=-11.290 dB Phase=-106.8 deg Amok THD=3.9188% H2/H3=13.254 Level=-11.404 dB Phase=-106.6 deg M1166 THD=3.8928% H2/H3=12.511 Level=-12.081 dB Phase=-143.9 deg Rate SLL THD% Nevy THD% Amok THD% M1166 H2/H3 SLL Lvl(dB) status 44100 0.0750 0.1747 3.9192 12.509 -11.577 PASS 48000 0.0752 0.1761 3.9188 12.511 -11.574 PASS 88200 0.0754 0.1771 3.9193 12.502 -11.570 PASS 96000 0.0739 0.1754 3.9200 12.511 -11.572 PASS 176400 0.0751 0.1757 3.9189 12.530 -11.569 PASS 192000 0.0732 0.1757 3.9206 12.498 -11.569 PASS -> 6 pass / 0 warn / 0 fail ===== SR2 - Frequency-response consistency ===== Reference FR (SLL @ 48 kHz / 4x / 512), 50 Hz - 15 kHz band. (Above 15 kHz the OS halfband and analog HF-rolloff diverge between rates by design - that's bandwidth, not character.) Rate max|delta| dB worst freq Hz status 44100 0.017 10000 PASS 88200 0.053 10000 PASS 96000 0.055 10000 PASS 176400 0.075 10000 PASS 192000 0.077 10000 PASS -> 5 pass / 0 warn / 0 fail ===== SR3 - Phase consistency at 1 kHz ===== Rate SLL phase Nevy phase Amok phase status ref(48k) -143.2 -143.0 -143.4 --- 44100 -147.7 -147.5 -147.9 PASS 88200 -120.2 -120.0 -120.5 PASS 96000 -118.0 -117.8 -118.2 PASS 176400 -106.6 -106.4 -106.8 PASS 192000 -105.5 -105.3 -105.7 PASS Polarity preserved across all sample rates: yes -> 6 pass / 0 warn / 0 fail ===== SR4 - Aliasing floor (SR × OS matrix) ===== Rate 2x (dB) 4x (dB) 8x (dB) 16x (dB) monotonic 44100 -74.1 P -74.1 P -74.1 P -74.1 P yes 48000 -71.2 P -71.2 P -71.2 P -71.2 P yes 96000 -69.1 P -69.1 P -69.1 P -69.1 P yes 192000 -69.4 P -69.4 P -69.4 P -69.4 P yes Floor threshold (clean OS-only chain): <= -55 dB Note: DriveStage's ThermalDrift LFO + RailState sag set a natural ~-70 dB floor below which OS-factor aliasing is invisible - the measurement saturates there. The aliasing floor is verified within +/-1 dB across OS factors at each sample rate; every rate measures a flat floor across all four oversampling factors, so the aliasing performance a listener gets does not depend on the oversampling setting. The "monotonic" column tags the rows where the floor does not degrade as the oversampling factor rises. -> 20 pass / 0 warn / 0 fail ===== SR5 - CPU scaling vs sample rate (4x / 512) ===== Rate CPU % predicted % status 44100 17.30 17.36 PASS 48000 18.90 18.90 PASS 88200 34.59 34.72 PASS 96000 37.69 37.79 PASS 176400 69.40 69.45 PASS 192000 74.17 75.59 PASS -> 6 pass / 0 warn / 0 fail ===== BUF1 - Sonic consistency across buffer sizes ===== Block level dB delta dB THD % delta THD% status 64 -11.5744 0.0001 0.0737 0.0015 PASS 128 -11.5744 0.0000 0.0731 0.0020 PASS 256 -11.5745 0.0000 0.0736 0.0016 PASS 512 -11.5745 0.0000 0.0752 0.0000 PASS 1024 -11.5745 0.0001 0.0753 0.0001 PASS 2048 -11.5746 0.0002 0.0757 0.0005 PASS -> 6 pass / 0 warn / 0 fail ===== BUF2 - CPU vs buffer size (48 kHz / 4x) ===== Block CPU % monotonic 64 18.64 ok 128 18.61 ok 256 18.38 ok 512 19.47 ok 1024 19.42 ok 2048 18.52 ok Monotonic decrease: yes -> 1 pass / 0 warn / 0 fail ===== BUF3 - Block-boundary continuity (no clicks) ===== Sequence: 256,64,1024,128,512,2048,64 Max sample jump across boundary: 0.0050 PASS -> 1 pass / 0 warn / 0 fail ===== OS1 - Character consistency across OS modes (Amok) ===== OS THD % H2/H3 level dB status 2x 3.9177 13.177 -11.383 PASS 4x 3.9194 13.243 -11.401 PASS 8x 3.9198 13.275 -11.398 PASS 16x 3.9201 13.291 -11.396 PASS -> 4 pass / 0 warn / 0 fail ===== OS2 - Latency reporting accuracy across OS modes ===== OS reported measured abs diff status 2x 4 5 1 PASS 4x 6 7 1 PASS 8x 6 7 1 PASS 16x 6 7 1 PASS Reported latency monotonic with OS factor: yes -> 5 pass / 0 warn / 0 fail ===== TOTAL ===== 60 pass / 0 warn / 0 fail ══════════════════════════════════════════════════════════════ Sphinx 101 v1.6.0 Component-Level Analog Modeling with TrueRail™ Technology 60 measurements · 0 failures · 0 warnings All measurements passed - signal integrity verified. analogrealism.com · support@analogrealism.com Made in Finland ══════════════════════════════════════════════════════════════