The DesignWare ARC Sound Dynamic Resolution Adaptation (DRA) is a high-quality, multi-channel lossy audio compression algorithm designed for low decoder complexity. It varies its temporal frequency resolutions depending on the quasi-stationary or transient nature of the signal in a given time window. Developed by DigiRise Technology as an alternative to Dolby and DTS formats, DRA has been selected as the Chinese national audio coding standard (Specification for Multichannel Digital Audio Coding Technology, GB/T 22726-2008, which is the former China Electronic Industry Standard SJ/T 11368-2006). It is now accepted as one of the optional formats for Blu-ray audio (as outlined in the Blu-ray Disc 2.3 specification). DRA technology has applications in digital TV, digital audio broadcasting, digital cinema, internet streaming media, IPTV and the Chinese Multimedia Mobile Broadcast (CMMB) standard.
Supports all standard sample rates from 8 to 192 KHz
Multiple window size support, ranging from 128 to 1024 audio samples
Multi-channel support, including 5.1, 6.1 and 7.1
Down-mixing, 5 different modes available
Supports interleaved and non-interleaved output 16-, 24- and 32-bit depth output
16-, 24- and 32-bit depth output
Fine tuned for small code and data size as well as low processor load
Source code for the optimized library for the decoding DRA Source code for the optimized library for the decoding DRA
Associated makefiles for building the decoder
Release notes, getting started guide
Automotive, Communications, Consumer Electronics, Data Processing, Industrial and Medical, Military/Civil Aerospace
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