NDLI: An efficient fixed-point IMDCT algorithm for high-resolution audio appliances

Content Provider	IEEE Xplore Digital Library
Author	Byoung Eul Kim Jin-Yong Chung Sun-Young Hwang
Copyright Year	1975
Abstract	In this paper, we propose an efficient fixed-point IMDCT algorithm for high-resolution audio (or audio/video) appliances such as digital media receiver (DMR) and high-end portable media player (PMP). A novel block floating-point algorithm and a method of reducing the number of guard bits are proposed to implement IMDCT. The former can compute IFFT-based IMDCT with same efficiency as higher radix IFFT and has same number of guard bits as radix-2 IFFT. The latter can reduce the number of guard bits based statistical bit growth pattern. Experimental results using high-resolution advanced audio coding (AAC) decoder show that the 32-bit IMDCT implemented by the proposed algorithm can comply with a 24-bit AAC decoder with 20% ~ 50% less computational complexity when compared with existing 48-bit IMDCT. The proposed algorithm can be used efficiently for low-complexity implementation of high-resolution audio appliances.
Sponsorship	IEEE Consumer Electronics Society
File Size	584363
File Format	PDF
ISSN	00983063
Volume Number	54
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Home appliances Decoding Portable media players Sampling methods Frequency Digital signal processing Audio coding Computational complexity Costs Testing guard bits High-resolution audio IMDCT block floating-point
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering 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

Implementation of MPEG-2 AAC on 16-bit Fixed-Point DSP

Implementation of IMDCT for MPEG2/4 AAC on 16-bit fixed-point digital signal processors

Using low precision floating point numbers to reduce memory cost for MP3 decoding

Low cost floating-point unit design for audio applications

A 24-bit floating-point audio DSP controller supporting fast exponentiation

Fixed-point implementation of MPEG-D unified speech and audio coding decoder

A fixed-point MPEG audio processor operating at low frequency

Audio application implementations on a block-floating-point DSP

A scalable subband audio coding scheme for ATM environments

An efficient fixed-point IMDCT algorithm for high-resolution audio appliances

Similar Documents

Implementation of MPEG-2 AAC on 16-bit Fixed-Point DSP

Implementation of IMDCT for MPEG2/4 AAC on 16-bit fixed-point digital signal processors

Using low precision floating point numbers to reduce memory cost for MP3 decoding

Low cost floating-point unit design for audio applications

A 24-bit floating-point audio DSP controller supporting fast exponentiation

Fixed-point implementation of MPEG-D unified speech and audio coding decoder

A fixed-point MPEG audio processor operating at low frequency

Audio application implementations on a block-floating-point DSP

A scalable subband audio coding scheme for ATM environments

An efficient fixed-point IMDCT algorithm for high-resolution audio appliances