NDLI: Optimal bit reservoir control for audio coding

Content Provider	IEEE Xplore Digital Library
Author	Camberlein, E. Philippe, P.
Copyright Year	2005
Description	Author affiliation: France Telecom R&D, Cesson Sevigne, France (Camberlein, E.; Philippe, P.)
Abstract	Audio coding schemes such as MP3 or MPEG AAC can use a variable number of bits to encode each signal frame. However they can still be used on constant bit rate channels thanks to a variation buffer limited in size. This buffer allows the encoder to use more bits for high complexity frames in order to maintain quality, the buffer being decreased e.g. for silent frames, leading to a constant rate coding on average. The use of such a buffer aims at reducing quality fluctuations over time, thanks to reasonable instantaneous bit rate variations. In this paper, a new design for a buffer controller is presented. This controller aims at finding the appropriate number of bits to encode each audio frame, according to chosen perceptual criteria and reduces the perceived distortion over time. This process can take place in a two pass encoding process, the first pass aiming at measuring frames complexity and bit demand, the second consisting in allocating the appropriate number of bits for each. In order to cope with on-line coding application a single pass encoding with a reasonable additional delay is also investigated.
Starting Page	251
Ending Page	254
File Size	206219
Page Count	4
File Format	PDF
ISBN	0780391543
DOI	10.1109/ASPAA.2005.1540217
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reservoirs Optimal control Audio coding
Content Type	Text
Resource Type	Article

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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