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AES E-Library » AC-2 and AC-3: Low-Complexity Transform ...
https://www.aes.org/e-lib/browse.cfm?elib=7132#:~:text=The%20AC-2%20system%20is%20actually%20a%20family%20of,overall%20data%20rates%20between%2032%20and%20640%20kbit%2Fs.
AES E-Library » AC-2 and AC-3: Low-Complexity …
https://www.aes.org/e-lib/browse.cfm?elib=7132
Low-Complexity LOUIS D. FIELDER, AC-2 and AC-3: Transform-Based Audio Coding* MARINA BOSI, GRANT DAVIDSON, MARK DAVIS, CRAIG TODD, AND STEVE VERNON Dolby Laboratories, San Francisco, CA 94103, USA Two high-quality data-rate reduction coding systems, AC-2 and AC-3, are discussed.
AES E-Library » AC-2: A Family of Low Complexity …
https://www.aes.org/e-lib/browse.cfm?elib=5399
Two high-quality data rate reduction music coders from a family of TDAC transform-based coders are discussed. An overview of the psycho-acoustic principles used in their design is given and their limitations discussed. The use of psycho-acoustics and DSP technology are combined to yield a low complexity approach to music coding. Issues of complexity, word length …
AES Member Portal - Audio Engineering Society
https://secure.aes.org/members/insidetrack/201904/
AC-2 and AC-3: Low-Complexity Transform-Based Audio Coding; An Overview of MPEG Audio: Current and Future Standards for Low Bit-Rate Audio Coding; ISO/IEC MPEG-2 Advanced Audio Coding; Subjective Evaluation of State-of-the-Art Two-Channel Audio Codecs; Spectral Band Replication, a Novel Approach in Audio Coding; Parametric Coding for High ...
Design of Low Complexity Filterbank Method for the State ...
http://www.ijaist.com/wp-content/uploads/2018/08/DesignofLowComplexityFilterbankMethodfortheStateoftheartAudioCodingSchemes.pdf
audio coding. Filterbank can be interpreted as modified discrete cosine transform (MDCT) domain or quadrature mirror filterbank (QMF) domain. MDC T has been widely used in state-of-the-art audio coding scheme such as Dolby AC-3, MPEG-2/4 AAC, MP3 [1]-[5]. It is a linear orthogonal lapped transform, based on the idea of time domain
AC-3: Flexible Perceptual Coding for Audio Transmission and St
http://www.mp3-tech.org/programmer/docs/ac3-flex.pdf
Dolby AC-3 is a flexible audio data compression technology capable of encoding a range of audio channel formats into a low rate bit stream. Channel formats range from monophonic to 5.1 channels, and may include a number of associated audio services. Based on a transform filter bank and psychoacoustics, AC-3 includes the novel features of ...
Audio Coding - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/audio-coding
Recently, a transform coding scheme called AC-3, developed by Todd et al. [238] at Dolby Laboratories, was adopted for the multichannel audio portion of the forthcoming high-definition television (HDTV) terrestrial broadcasting standard of the U.S. Federal Communications Commision (FCC). The algorithm operates at a range of bit rates as low as ...
MPEG-2 AAC | Request PDF
https://www.researchgate.net/publication/226643607_MPEG-2_AAC
AC-2 and AC-3: Low-Complexity Transform-Based Audio Coding,” Collected Papers on Digital Audio Bit-Rate Reduction Fielder MPEG-2 NBC Audio-Stereo and Multichannel Coding Methods
rfc4184 - IETF Tools
https://tools.ietf.org/html/rfc4184
2. Overview of AC-3 AC-3 can deliver up to 5.1 channels of audio at data rates approximately equal to half of one PCM channel , , . The ".1" refers to a band-limited, optional, low- frequency effects (LFE) channel. AC-3 was designed for signals sampled at rates of 32, 44.1, or 48 kHz.
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