DocumentCode
3510913
Title
Strategies for bit allocation reuse in audio transcoding
Author
Mansour, Mohamed F.
Author_Institution
Texas Instrum. Inc., Dallas, TX
fYear
2009
fDate
19-24 April 2009
Firstpage
157
Lastpage
160
Abstract
We study the reuse of the bit allocation information in audio transcoding by exploiting the similarity in subband audio coding schemes. We show that important information can be deduced to reduce the encoder complexity even if the two coders employ different psychoacoustic model. We give a case study on MPEG AAC/Dolby AC-3 transcoding. The proposed algorithms can be extended to other audio transcoding schemes.
Keywords
acoustic signal processing; audio coding; transcoding; MPEG AAC/Dolby AC-3 transcoding; audio transcoding; bit allocation reuse; encoder complexity; psychoacoustic model; subband audio coding schemes; Additive noise; Audio coding; Bit rate; Decoding; Frequency estimation; Instruments; Psychoacoustic models; Quantization; Random variables; Transcoding; AAC; AC-3; Bit Allocation; Transcoding;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location
Taipei
ISSN
1520-6149
Print_ISBN
978-1-4244-2353-8
Electronic_ISBN
1520-6149
Type
conf
DOI
10.1109/ICASSP.2009.4959544
Filename
4959544
Link To Document