Alle items met de tag “Audio”
Contents: I. Inleiding II. Het virtuele archief III. Metadata IV. Beschrijvingsregels voor documentalisten V. Filmanalyse VI. Automatisch indexeren van beeld en geluid VII. Wat vindt de gebruiker: twee onderzoeken VIII. Perspectieven en problemen. Een beschrijving van de toepassing van beeld-, spraak- en taaltechnologie op audiovisueel materiaal. Aan de hand van de werkwijze van documentalisten en de conventies van de filmanalyse …
IASA TC-03 identifies problem areas and makes recommendations for the use of audiovisual archives in a modern technical environment. These recommendations should be seen as a balance between the ideal and reality. This paper sets out the general ethical and technical principles that underlie audio preservation. The document contains recommendations for digitization and file formats, but does not address …
Contents: 2 Document Scope 3 Executive Summary 4 Overview Part A: Visual Content Analysis Tools 5 Low-level Visual Features 6 Spatial/Spatiotemporal Segmentation 7 Shot Boundary Detection 8 Video OCR 10 Defect and Quality Analysis Part B: Content Analysis Tools for Audio and Speech 11 Low-level Audio Features 12 Use of Low-Level Audio Features 13 Automatic Speech Recognition (ASR) Part C: …
A method for evaluation of parasitic frequency modulation (wow) in archival audio is presented in this paper, published in the PrestoSPACE project. The proposed approach utilizes sinusoidal components as their variations are highly correlated with the distortion variations. The sinusoidal components are extracted from audio signal by means of sinusoidal modeling procedures being often severely distorted and in case of …
Archivists who work with audiovisual records often find themselves confronting a challenge their counterparts who deal with traditional paper records do not have. They must often act as “bucket brigades”—chasing one “fire” after another as rapidly changing technology threatens to render the media formats storing audiovisual records obsolete and inaccessible. What these archivists face is the daunting task of preserving—and …
Author of this paper participated in the development of several algorithms for wow and flutter characteristic determination. The algorithms were found useful in some real-life restoration procedures, however, there was no study of their capabilities in terms of the maximal determined modulation frequency. This paper presents such a study for three algorithms, i.e. the power-line hum tracker, high frequency bias …
