AES Store

Journal Forum

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

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

Access Journal Forum

AES E-Library

Method Comparison of Pick-Up and Pre-Processing of Bias Signal for Wow and Flutter Correction

Based on a practical implementation within an archival workflow and prior studies of bias signal retrieval from analogue magnetic tape, the authors focus on a comparison of reproduction and pre-processing methods of the bias signal. Previous approaches are compared to the authors' proposed method. The signal pre-processing in analogue as well as digital domain are outlined, and basing on analyses of bias signals from professional and semi-professional recordings, the various practical problems are discussed: Level instability and unknown frequency of the recorded bias signal, frequency variations mainly with semi-professional devices of older types of recording equipment due to the instability of the bias oscillator, as well as effects of signal distortions, interferences and ultrasonic artefacts.

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