|
Nero Digital is a brand name applied to a suite of MPEG-4-compatible video and audio compression codecs developed by Nero AG of Germany and Ateme of France. The audio codecs are integrated into the ''Nero Digital Audio+'' audio encoding tool for Microsoft Windows, and the audio & video codecs are integrated into Nero's ''Recode'' DVD ripping software. Nero certifies certain DVD player/recorder devices as Nero Digital compatible,〔(【引用サイトリンク】title=DVD player/recorder (list of certified devices) )〕 and licenses the codec technology to integrated circuit manufacturers.〔(【引用サイトリンク】title=Become a partner of Nero today )〕 The video codecs were developed by Ateme,〔(【引用サイトリンク】title=Nero Digital format highlights )〕 and according to an interview with Nero AG developer Ivan Dimkovic, the audio codecs are improved versions of Dimkovic's older ''PsyTEL AAC Encoder''.〔(【引用サイトリンク】publisher=AfterDawn.com )〕 The audio codec is now available as a free stand-alone package called Nero AAC Codec. == Functionality == Nero Digital can generate streams in the 3GP/MPEG-4 Part 14 (".mp4") container format and includes two video and two audio codecs: * ASP (one of about 20 profiles defined in MPEG-4 Part 2) * AVC (also known as MPEG-4 Part 10 or H.264) * AAC-LC (the most widely used AAC profile defined in MPEG-4 Part 3) * HE-AAC (defined in MPEG-4 Part 3, sometimes referenced as "aacPlus" or other, similar trademarks) The codecs are compliant with the ISO/IEC standard, with the exception of subtitles and chapter information. The video streams generated by Nero Digital can be played back on some stand-alone hardware players and software media players such as the company's own Nero Showtime. Recode cannot rip encrypted DVD movie discs, but is able to import decrypted DVD images for encoding. Nero Digital also does not ship its codecs as stand-alone DirectShow or VfW modules, preventing them from being used for general-purpose video editing. The product is not bundled with a video editor. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nero Digital」の詳細全文を読む スポンサード リンク
|