MTS Pilot tracking algorithm for “wow”distortion

New algorithm for detection of the wow distortion characteristic basing on the MTS pilot tracking is introduced. By observing a variation of the pilot frequency, the depth of the parasitic modulation can be estimated. MTS is an audio coding system used in an NTSC television standard, thus the algorithm is applicable only in that type of recordings. It is based …

A/V Artifact Atlas

” The AV Artifact Atlas is for use in the identification and definition of the technical issues and anomalies that can afflict audio and video signals.” This community built resource offers a rich list of analogue and digital audio and video artifact examples accompanied by sound bites,  videos, still images or waveforms displaying their qualities, a description of the artifact, …

Tutorial: Restoration of AV material

Because audiovisual media are so easily damaged, restoration is an important process in preservation. A restored item is never completely the same as the original one, even though it might look and feel the same or better.Restoration has its successes and failures. There are defects that can be repaired, and others that can’t (or not so well). Also there are …

Preservation Guide

Click on the links below to access the PDF’s. Navigation Guide Introduction Overview of Preservation 1 What is preservation 1.1 Maintenance 1.2 Digitisation 1.3 Conservation 1.4 Restoration 1.5 What this document covers, and doesn’t cover Getting Started 2.1 Where to start: cartography! 2.2 Muster your resources 2.3 Prioritise Develop a Strategy 3 Collection strategy 3.1 Long-term purpose if the preservation …