Appendix 1 – Noise Shapes

43

 

 

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.

Noise spectrum

20dB

0dB

-20dB

0Hz

5kHz

10kHz

15kHz

20kHz

25kHz

Above: noise spectrum using High-Pass additive TPDF dither at 44.1kHz

 

10dB

 

 

 

 

 

spectrum

5dB

 

 

 

 

 

0dB

 

 

 

 

 

 

 

 

 

 

 

Noise

-5dB

 

 

 

 

 

 

 

 

 

 

 

 

-10dB

 

 

 

 

 

 

-15dB

5kHz

10kHz

15kHz

20kHz

25kHz

 

0Hz

Above: noise spectrum for Shape A at 44.1kHz.

518 User Guide

Page 43
Image 43
Meridian America Meridian 518 manual Part Appendix 1 Noise Shapes