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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
Dolby Laboratories, Digital Audio Compression Standard A/52B, Advanced Television Systems Committee (ATSC), 2005. Google Scholar 6. K. Tsutsui, “ATRAC (adaptive transform acoustic coding) and ATRAC 2,” The Digital Signal Processing Handbook, V. Madisetti and D. Williams, Editors, CRC Press, pp. 43.16– 43.20, 1998. Google Scholar 7.
DRA Audio Coding Standard | SpringerLink
https://link.springer.com/chapter/10.1007%2F978-1-4419-1754-6_15
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 national standard [100]. Keywords Selection Index Normal Channel Auxiliary Data Critical Band Application Scope These keywords were added by machine and not by the authors.
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
DRA Audio Coding Standard Abstract: 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.
DRA Series Digital Radio Adapters - Detailed Description
http://www.masterscommunications.com/products/radio-adapter/dra/dra-description.html
The DRA-45/50/65/70/80 comes standard with two audio amplifiers on board. This provides two robust audio outputs - left and right. There are two possible maximum output level selections in hardware, determined by JU2. The low selection provides about 4 V P-P and the high about 12 V P-P, depending on the amount of DC voltage present at DB9 - pin 9.
DRA Series Radio Adapters - Masters Communications
http://www.masterscommunications.com/products/radio-adapter/dra/dra-features.html
These standard features are included in all DRA Series Radio Adapters. VARA HF, VARA FM, SoundModem (Packet) & other Digital Radio Compatibility. DB-9F (DE-9F) radio connection that matches the Kantronics KPC-3 (DRA-30, 45, and 65) RJ45 radio connection for possible reuse of SignaLink USB radio cables (DRA-34 and 54)
The Novel Improving Algorithms on DRA Audio Entropy …
https://ieeexplore.ieee.org/document/9259450/
Abstract: DRA (Digital Rise Audio) is referred to as specification for multi-channel digital audio coding technology which was issued as a Chinese national standard in 2008.
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