NDLI: Text-Like Segmentation of General Audio for Content-Based Retrieval

Content Provider	IEEE Xplore Digital Library
Author	Lie Lu Hanjalic, A.
Copyright Year	1999
Abstract	Automatic detection of (semantically) meaningful audio segments, or audio scenes, is an important step in high-level semantic inference from general audio signals, and can benefit various content-based applications involving both audio and multimodal (multimedia) data sets. Motivated by the known limitations of traditional low-level feature-based approaches, we propose in this paper a novel approach to discover audio scenes, based on an analysis of audio elements and key audio elements, which can be seen as equivalents to the words and keywords in a text document, respectively. In the proposed approach, an audio track is seen as a sequence of audio elements, and the presence of an audio scene boundary at a given time stamp is checked based on pair-wise measuring the semantic affinity between different parts of the analyzed audio stream surrounding that time stamp. Our proposed model for semantic affinity exploits the proven concepts from text document analysis, and is introduced here as a function of the distance between the audio parts considered, and the co-occurrence statistics and the importance weights of the audio elements contained therein. Experimental evaluation performed on a representative data set consisting of 5 h of diverse audio data streams indicated that the proposed approach is more effective than the traditional low-level feature-based approaches in solving the posed audio scene segmentation problem.
Sponsorship	IEEE Signal Processing Society IEEE Circuits and Systems Society IEEE Communications Society IEEE Computer Society
Starting Page	658
Ending Page	669
Page Count	12
File Size	746009
File Format	PDF
ISSN	15209210
Volume Number	11
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Content based retrieval Layout Streaming media Multimedia databases Speech enhancement Multimedia systems Information retrieval Time measurement Text analysis Statistical analysis content-based audio analysis Audio element audio scene audio scene segmentation
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Science Applications Media Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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