DCS 900E - Figure 29 - Truncation Only Spectra

dCS 900E / 902E User Manual Manual for Software Versions 1.3x to 1.5x
dCS Ltd 12
th
June 2000
Manual part no: DOC0029021E1 Page 53 Document No: OS-MA-D0002-902.1E1
Contact dCS on + 44 1799 531 999 email to: more@dcsltd.co.uk
(inside the UK replace + 44 with 0) web site: www.dcsltd.co.uk
Spectra of -90dB 24 bit sinewave truncated to 16 bits with dither options
dCS 972 SW v1.54
-91.00 dB source signal
-89.70 dB 16 bit truncated
-160
-140
-120
-100
-80
-60
0 2 4 6 8 10 12 14 16 18 20 22
Frequency (kHz)
Amplitude (dB)
24 bit source data
16 bit truncation, no
dither
44.1 kS/s sampling, 1.44 kHz input, 1024
point FFTs, H6 Window
Figure 29 – Truncation Only Spectra
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