AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

An Analysis of Tandem Error During Audio Transcoding

In a repeated quantization scenario, apart from the nominal quantization error, an additional tandem error is introduced. The amount of the excess tandem error depends on the characteristics of the quantizers used. In this work, the effect of tandem error and its dependence on the underlying quantizer characteristics are analyzed. A prime example where tandem error leads to increased noise is in audio transcoding. The behavior of tandem-noise for typical audio coding methods such as MPEG 1 Layer 2 is investigated. A method of reducing the tandem errors is proposed. This method involves guiding the quantization process of the first quantizer, assuming prior knowledge of the second quantizer. Results show that the method is able to reduce the amount of tandem error in the repeated quantization scenario.

Authors:
Affiliations:
AES Convention: Paper Number:
Publication Date:
Subject:

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:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society