AES E-Library

A New Principle for an All Digital Preamplifier and Equalizer

A new principle for an all digital preamplifier and equalizer, to be used together with a compact disc player, is described. The principle makes it possible to obtain an arbitrary gain transfer function together with a linear phase. The gain can be varied 20dB from point to point, when specified on a logarithmic frequency axis with 30 divisions from 20 Hz to 20 kHz. The deviation in the passbands is max. 0.2dB. Taking advantage of the digital signal from the preamplifier, a high-frequency power amplifier can be developed. A prototype of the preamplifier built with commercially obtainable components has shown promising results.

Author: Jensen, Jørgen Arendt
Affiliation: Electronics Laboratory, Technical University of Denmark, Bldg. 344, DK-2800 Lyngby, Denmark
AES Convention:80 (March 1986) Paper Number:2315 Import into BibTeX
Subject:Digital Audio Techniques

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 aes11)   /pp8690/pp8603/2411.pdf

Start a discussion about this paper!