╔══════════════════════════════════════════════════════════════╗ ║ SPHINX 101 ║ ║ Signal Verification Report - v1.6.9 ║ ╠══════════════════════════════════════════════════════════════╣ ║ Report: Oversampling and Anti-Aliasing ║ ║ Generated: 2026-08-29 08:08 UTC ║ ║ Platform: macOS · Apple Silicon · TrueRail™ ║ ║ Standard: -6 dBFS operating level · 64-bit internal ║ ╚══════════════════════════════════════════════════════════════╝ Sphinx 101 - Oversampling and Anti-Aliasing Report Generated: 2026-08-29 08:08:42 UTC ===== SR1 - Sonic fingerprint across sample rates ===== Reference (48 kHz / 4x / 512): SLL THD=0.1218% H2/H3=6.009 Level=-11.591 dB Phase=-106.8 deg Nevy THD=0.1677% H2/H3=11.703 Level=-11.307 dB Phase=-106.8 deg Amok THD=3.8966% H2/H3=12.043 Level=-11.426 dB Phase=-106.6 deg M1166 THD=3.8691% H2/H3=11.652 Level=-12.093 dB Phase=-144.1 deg Rate SLL THD% Nevy THD% Amok THD% M1166 H2/H3 SLL Lvl(dB) status 44100 0.1225 0.1670 3.8970 11.651 -11.593 PASS 48000 0.1218 0.1677 3.8966 11.652 -11.591 PASS 88200 0.1220 0.1686 3.8970 11.645 -11.587 PASS 96000 0.1223 0.1721 3.8978 11.652 -11.588 PASS 176400 0.1222 0.1675 3.8967 11.669 -11.586 PASS 192000 0.1218 0.1731 3.8984 11.639 -11.585 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 0.018 10000 PASS 88200 0.070 10000 PASS 96000 0.075 10000 PASS 176400 0.093 10000 PASS 192000 0.094 10000 PASS -> 5 pass / 0 warn / 0 fail ===== SR3 - Phase consistency at 1 kHz ===== Rate SLL phase Nevy phase Amok phase status ref(48k) -143.1 -142.9 -143.3 --- 44100 -147.5 -147.3 -147.8 PASS 88200 -120.1 -119.9 -120.3 PASS 96000 -117.9 -117.6 -118.1 PASS 176400 -106.4 -106.2 -106.7 PASS 192000 -105.3 -105.1 -105.6 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 + 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 15.31 15.30 PASS 48000 16.66 16.66 PASS 88200 30.60 30.60 PASS 96000 33.40 33.31 PASS 176400 61.19 61.21 PASS 192000 66.59 66.62 PASS -> 6 pass / 0 warn / 0 fail ===== BUF1 - Sonic consistency across buffer sizes ===== Block level dB delta dB THD % delta THD% status 64 -11.5910 0.0001 0.1211 0.0007 PASS 128 -11.5910 0.0000 0.1215 0.0003 PASS 256 -11.5910 0.0000 0.1220 0.0002 PASS 512 -11.5910 0.0000 0.1218 0.0000 PASS 1024 -11.5911 0.0001 0.1218 0.0000 PASS 2048 -11.5912 0.0002 0.1219 0.0001 PASS -> 6 pass / 0 warn / 0 fail ===== BUF2 - CPU vs buffer size (48 kHz / 4x) ===== Block CPU % monotonic 64 16.79 ok 128 16.73 ok 256 16.80 ok 512 16.70 ok 1024 16.81 ok 2048 16.79 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 3.8974 11.970 -11.398 PASS 4x 3.8991 12.023 -11.415 PASS 8x 3.8994 12.047 -11.413 PASS 16x 3.8995 12.059 -11.410 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 v1.6.9 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 ══════════════════════════════════════════════════════════════