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Fast subband filtering in MPEG audio coding | IEEE ...
https://ieeexplore.ieee.org/document/300309/
Abstract: Subband filtering is one of the most compute-intensive operations in the MPEG audio coding standard. The author proves that the matrixing operations in MPEG subband filtering can be efficiently computed using fast 32-point DCT or inverse DCT (IDCT) algorithms.
Fast subband filtering in MPEG audio coding - NASA/ADS
https://ui.adsabs.harvard.edu/abs/1994ISPL....1...26K/abstract
adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A
AES E-Library » Fast Algorithm on MPEG/Audio Subband …
https://www.aes.org/e-lib/browse.cfm?elib=7676&turnmobile=on
Subband filtering is one of the compute-intensive operations in the MPEG audio coding standard. By using the periodicity of the cosine and the symmetric property of the window, the subband filtering equation can be rearranged to a 32-point DCT-II or DCT-III. That is to say, window operation is followed by a 32-point fast DCT and is computed efficiently by taking …
CiteSeerX — Subband-Domain Filtering Of Mpeg Audio …
https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.25.9253
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The cosine modulated filter bank is commonly used for the timefrequency decomposition of audio signals. For example, it is a basic element of the MPEG-1 and MPEG-2 audio coding standards. While this filter bank is not perfectly-reconstructing, it does provide for the cancelation of aliasing …
Subband Coding - McMaster University
https://www.ece.mcmaster.ca/~shirani/multi12/subband.pdf
MPEG audio • MPEG has proposed an audio scheme that is based on subband coding. • MPEG has proposed three coding schemes: Layer1, Layer2, Layer 3 • Coders are upward compatible: a layer N decoder is able to decode bitstream generated by the layer N-1 encoder • Layer1 and 2 coders use a bank of 32 filters.
Optimized MPEG audio decoding using recursive …
https://www.semanticscholar.org/paper/Optimized-MPEG-audio-decoding-using-recursive-Smet-Bruyland/e7444a5e871b708bfb205d666d0fa6aca36fbaed
This paper discusses a recursive optimization approach for the subband synthesis windowing component used in all three layers of the MPEG-1 and −2 audio decoding standards. First, we explain the design of the proposed algorithm and illustrate how it can be combined with other optimization strategies that have already been discussed in the literature.
US7512536B2 - Efficient filter bank computation for …
https://patents.google.com/patent/US7512536B2/en
Low-complexity synthesis filter bank for MPEG audio decoding uses a factoring of the 64×32 matrixing for the inverse-quantized subband coefficients. Factoring into non-standard 4-point discrete cosine and sine transforms, point-wise multiplications and combinations, and non-standard 8-point discrete cosine and sine transforms limits memory requirements and …
(PDF) Low power MPEG/audio encoders using simplified ...
https://www.academia.edu/66826675/Low_power_MPEG_audio_encoders_using_simplified_psychoacoustic_model_and_fast_bit_allocation
Oh et al.: Low Power MPEGlAudio Encoders Using Simplified Psychoacoustic Model and Fast Bit Allocation 613 LOW POWER MPEG/AUDIO ENCODERS USING SIMPLIFIED PSYCHOACOUSTIC MODEL AND FAST BIT ALLOCATION Hyen-0 Oh’, Joon-Seok Kim’, Chang-Jun Song’, Young-Cheol Park2 and Dae-Hee Youn’ ’ ASSP Lab., Dept. of Electrical and Electronic …
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