Meridian America Digital Audio Processor Meridian 518 - Manual (Page 43)

Appendix 1 – Noise Shapes 43
518 User Guide
Part 3
Appendix 1 – Noise Shapes
The graphs in this appendix show the relative noise spectra in dB for the
different shapers, compared with the flat-spectrum dither level for the
same word-size.
0Hz 5kHz 10kHz 15kHz 20kHz 25kHz
-20dB
0dB
20dB
Noi
se spectru
m
Frequency
Above: noise spectrum using High-Pass additive TPDF dither at 44.1kHz
0Hz 5kHz 10kHz 15kHz 20kHz 25kHz
-15dB
-10dB
-5dB
0dB
5dB
10dB
Noi
se spectru
m
Frequency
Above: noise spectrum for Shape A at 44.1kHz.