On Properties, Relations, and Simplified Implementation of Filter Banks in the Dolby Digital (Plus) AC-3 Audio Coding Standards

  title={On Properties, Relations, and Simplified Implementation of Filter Banks in the Dolby Digital (Plus) AC-3 Audio Coding Standards},
  author={Vladimir Britanak},
  journal={IEEE Transactions on Audio, Speech, and Language Processing},
  • V. Britanak
  • Published 1 July 2011
  • Computer Science
  • IEEE Transactions on Audio, Speech, and Language Processing
The Dolby Digital (Plus) AC-3 audio coding standards are currently the key enabling technologies for high-quality compression and decompression of digital audio signals. The Dolby Digital (Plus) AC-3 audio coding standards have adopted the modified discrete cosine transform (MDCT) for the time/frequency transformation of an audio data block. Besides a long transform being the MDCT, the AC-3 defines additional two variants of cosine-modulated filter banks called the first and second short… 
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