This article discussed the hot topics focusing on Dolby Digital and surround sound technologies, with a probing into some professional issues related to the HDTV audio domain.

本文围绕杜比数字和环绕声技术等热点话题，探讨了有关高清晰度电视音频领域的一些专业问题。

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The Transformers: Dark of the Moon Blu-ray 3D and Blu-ray are presented in 1080p high definition with English 7.1 Dolby TrueHD, English 5.1 Discrete Dolby Digital, English 2.0 Discrete Surround Dolby Digital, French 5.1 Dolby Digital, Spanish 5.1 Dolby Digital, Portuguese 5.1 Dolby Digital and English Audio Description and English, English SDH, French, Spanish and Portuguese subtitles.

ENGADGET: Transformers: Dark of the Moon clip breaks down shooting movies, special effects in 3D (video)

The Transformers: Dark of the Moon Blu-ray is presented in 1080p high definition with English 7.1 Dolby TrueHD and-in a first for Paramount Home Entertainment-English 5.1 Discrete Dolby Digital and English 2.0 Discrete Surround Dolby Digital tracks, each of which was individually mastered to ensure optimal sound for the home entertainment experience.

ENGADGET: Transformers: Dark of the Moon Blu-ray due September 30th, 3D version later

Currently, high-definition TV shows and movies from iTunes are offered in 720P and Dolby Digital surround sound.

FORBES: Apple TV Refresh Coming In March Alongside iPad 3?