Summary

Report generated by DeltaWave: http://deltaw.org

2020/09/18 10:43:08

Table 1. Results Summary
Result
DeltaWave v1.0.50, 2020-09-18T10:42:45.4944261+09:00
Reference: cst_24b.wav[L] 331629 samples 44100Hz 24bits, stereo, MD5=00
Comparison: rec_33.wav[L] 340992 samples 44100Hz 24bits, stereo, MD5=00
Settings:
Gain:True, Remove DC:False
Non-linear Gain EQ:False Non-linear Phase EQ: False
EQ FFT Size:1048576, EQ Frequency Cut: 0Hz - 0Hz, EQ Threshold: -160dB
Correct Drift:True, Precision:30
Non-Linear drift Correction:False
Upsample:False, Window:Hann
Spectrum Window:Hann, Spectrum Size:32768
Spectrogram Window:Hann, Spectrogram Size:4096, Spectrogram Steps:2048
Dither:False
Trim Silence:False
Enable Simple Waveform Measurement: False
Discarding Reference: Start=0s, End=0s
Discarding Comparison: Start=0s, End=0s
Initial peak values Reference: -3.5dB Comparison: -1.838dB
Initial RMS values Reference: -25.562dB Comparison: -23.962dB
Null Depth=7.783dB
Cross-correlation found multiple phase inversions -- data may be too noisy or too dissimilar!
X-Correlation offset: 1 samples
Drift computation quality, #1: Excellent (1.7μs)
Trimmed 0 samples ( 0.00ms) front, 0 samples ( 0.00ms end)
Final peak values Reference: -3.5dB Comparison: -3.575dB
Final RMS values Reference: -24.952dB Comparison: -24.956dB
Gain= -0.6668dB (0.9261x) DC=0 Phase offset=984.638187ms (43422.544 samples)
Difference (rms) = -55.08dB [-59.74dBA]
Correlated Null Depth=51.65dB [51.41dBA]
Clock drift: -4.34 ppm
Files are NOT a bit-perfect match (match=0.83%) at 16 bits
Files are NOT a bit-perfect match (match=0%) at 24 bits
Files match @ 50.0373% when reduced to 9.27 bits
---- Phase difference (full bandwidth): 16.347364714131°
0-10kHz: 5.09°
0-20kHz: 5.04°
0-24kHz: 16.35°
Timing error (rms jitter): 387.6ns
RMS of the difference of spectra: -104.383647077874dB
DF Metric (step=400ms, overlap=0%):
Median=-34.7dB
Max=-29.3dB Min=-37.5dB
1% > -37.49dB
10% > -36.64dB
25% > -35.64dB
50% > -34.71dB
75% > -31.76dB
90% > -25.41dB
99% > 0.0dB
gn=1.07979195311667, dc=0, dr=-4.336702E-06, of=43422.544025247
DONE!
Signature: 9ea61ec2664e33027ded468a8d2b5e64

Plots

000:000:000 000:050:000 000:100:000 000:150:000 000:200:000 000:250:000 000:300:000 -1.94dB -4.44dB -7.96dB -13.98dB *** -13.98dB -7.96dB -4.44dB Raw Waveforms

Fig 1. Original Waveforms

000:000:000 000:050:000 000:100:000 000:150:000 000:200:000 000:250:000 -4.437dB -7.959dB -13.979dB *** -13.979dB -7.959dB -4.437dB Aligned Waveforms

Fig 2. Aligned Waveforms

13.4 26.9 40.3 53.8 80.7 134.5 269 403 538 807 1.34k 2.69k 4.0k 5.3k 8.0k 13.4k -160dB -140dB -120dB -100dB -80dB -60dB -40dB Aligned Spectrum

Fig 3. Aligned Spectrum

13.4 26.9 40.3 53.8 80.7 134.5 269 403 538 807 1.34k 2.69k 4.0k 5.3k 8.0k 13.4k -120dB -110dB -100dB -90dB -80dB -70dB Spectrum of Delta

Fig 4. Delta Spectrum

000:000:000 000:050:000 000:100:000 000:150:000 000:200:000 000:250:000 -30.46dB -33.98dB -40dB *** -40dB -33.98dB -30.46dB Delta Waveform

Fig 5. Delta Waveform

12.61 16.8 25.2 42.0 84.1 126.1 168.2 252.3 420 841 1.26k 1.68k 2.52k 4.2k 8.4k 12.6k 16.8k -150° -100° -50° 50° 100° 150° Delta Phase Phase delta

Fig 6. Delta Phase