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DRA Audio Coding Standard | Scientific.Net
https://www.scientific.net/AMM.330.981
DRA Audio Coding Standard: An Overview | SpringerLink
https://link.springer.com/chapter/10.1007/978-0-387-78263-8_20
20.1 Introduction A lossy audio coding or compression algorithm explores statistical redundancy and perceptual irrelevance of an input audio signal, which may include multiple channels, to obtain a compact representation suitable for efficient transmission or storage.
DRA Audio Coding Standard | SpringerLink
https://link.springer.com/chapter/10.1007%2F978-1-4419-1754-6_15
This chapter presents DRA (Dynamic Resolution Adaptation) audio coding standard [97] as an example to illustrate how to integrate the technologies described in this book to create a practical audio coding algorithm. DRA algorithm has been approved by the Blu-ray Disc Association as part of its BD-ROM 2.3 specification [99] and by Chinese government as its …
Dynamic Resolution Adaptation - Wikipedia
https://en.wikipedia.org/wiki/Dynamic_Resolution_Adaptation
Dynamic Resolution Adaptation ( DRA) is an audio encoding specification developed by DigiRise Technology. It has been selected as the Chinese national audio coding standard and also suitable for China Multimedia Mobile Broadcasting and DVB-H as extensively addressed in the International Journal of Digital Multimedia Broadcasting.
DRA Audio Coding Standard - Scientific.Net
https://www.scientific.net/AMM.330.981
Chinas DRA audio coding standard is shown to be a barebone transform coder, utilizing transient-localized MDCT for improved pre-echo suppression and statistic allocation of codebooks for high entropy coding efficiency. A signal path of up to 24 bits is provided throughout the codec so that highest audio quality can be delivered if bit rate suffices.
Audio Coding - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/audio-coding
Audio coding usually refers to the compression of high-fidelity audio signals, i.e., with 15- or 20-kHz bandwidth for consumer hi-fi, professional audio including motion picture and HDTV audio, and various multimedia systems. Sometimes the term audio coding is also used to refer to wideband speech coding, the compression of 7-kHz bandwidth speech audio for …
Audio Coding - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/audio-coding
Audio Overview In addition to the non-backwards-compatible audio extension (ISO/IEC 13818–7), MPEG-2 supports up to five full-bandwidth channels compatible with MPEG-1 audio coding. It also extends the coding of MPEG-1 audio to half sampling rates (16 kHz, 22.05 kHz, and 24 kHz) for improved quality for bit-rates at or below 64 kbps per channel.
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