AES E-Library

Determination and Correction of Individual Channel Time Offsets for Signals Involved in an Audio Mixture

A method for reducing comb-filtering effects due to delay time differences between audio signals in a sound mixer has been implemented. The method uses a multi-channel cross-adaptive effect topology to automatically determine the minimal delay and polarity contributions required to optimize the sound mixture. The system uses real time, time domain transfer function measurements to determine and correct the individual channel offset for every signal involved in the audio mixture. The method has applications in live and recorded audio mixing where recording a single sound source with more than one signal path is required, for example when recording a piano with multiple microphones. Results are reported which determine the effectiveness of the proposed method.

Authors: Perez Gonzalez, Enrique; Reiss, Joshua
Affiliation: Queen Mary University of London
AES Convention:125 (October 2008) Paper Number:7631 Import into BibTeX
Subject:Audio DSP

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 125Papers)   /125/7631.pdf

Start a discussion about this paper!