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__NOTOC__ Nero AAC Codec is a set of software tools for encoding and decoding Advanced Audio Coding (AAC) format audio, and editing MPEG-4 metadata. It was developed and distributed by Nero AG, and is available at no cost for Windows and Linux for non-commercial use. The codec was originally part of Nero Digital, but was later released as a stand-alone package. Nero's AAC encoder has been very competitive when tested against other encoders in scientific listening tests, for a time, second only to Apple's AAC encoder.〔(【引用サイトリンク】url=http://wiki.hydrogenaud.io/index.php?title=Hydrogenaudio_Listening_Tests )〕 In 2006, Chip Magazine (Germany) found that AAC files encoded with the Nero AAC encoder would consume as little as half of the space on a portable music player when compared to MP3 files of similar audio quality. == Components and Capabilities == The current package is labeled version "1.5.1.0", but contains the following three utilities: The encoder and decoder support MPEG-4 AAC LC, HE-AAC (AAC LC + SBR), and HE-AACv2 (LC + SBR + PS) Audio Object Types. Sample rates up to 96 kHz, and multichannel audio up to six channels (5.1 surround) are supported. The metadata utility can read and write Nero Digital, iTunes, and Memory Stick format tags to MPEG-4 containers.〔(【引用サイトリンク】url=http://wiki.hydrogenaud.io/index.php?title=Nero_AAC#NeroAacTag )〕 These command-line tools are commonly used by shell scripts and programs like ABCDE, Exact Audio Copy and foobar2000 to convert audio to AAC. 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 AAC Codec」の詳細全文を読む スポンサード リンク
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