AES E-Library

Noise Shaping for Measuring Digital Sinusoidal Signal with Low Total Harmonic Distortion

The method of noise shaping consisting in minimization of quantization noise in neighborhood of harmonics of digital test sinusoidal signal is considered. This method provides quantization noise power on harmonics frequencies considerably smaller, than methods of noise shaping with uniform power spectral density. For example for 16 bit, 44100 Hz sampling frequency, -60 dB level, 1378 Hz test signal this method provides total harmonic distortion (THD) 0.00067% (without noise shaping THD=1.1%, with dither in a frequency band (20000-22050) Hz and a standard deviation 0.46 quantum THD=0.043%). This method can be applied to measurement of nonlinearity of various systems (especially it is actual for DACs, digital filters and so on).

Author: Semyonov, Edward Valeryewith
AES Convention:112 (April 2002) Paper Number:5621 Import into BibTeX
Subject:Signal Processing Forum

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes19)   /pp2002/pp0205/000087.pdf

Start a discussion about this paper!