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The term ripping (slang term for digital media extraction) can also apply to radio. New software, techniques and cloud services now makes it possible to extract the songs played on the radio and digitally save them on separate audio tracks. Available techniques make it possible to rip the music from Internet radio broadcasts, satellite radio broadcasts and FM radio broadcasts. Ripping is more than simply recording the audio. The key aspect of ripping is disambiguation. When ripping songs from any source, the songs should be split into separate tracks or files, and the songs should be tagged. Otherwise, one is simply recording or dubbing the audio. ==Internet radio== Popular audio formats for Internet radio include AAC, AAC+, and MP3. Many AM/FM stations simulcast online use the more efficient AAC format while Internet-only streams more typically use MP3. The Shoutcast database featured 34,281 〔(【引用サイトリンク】url=http://www.shoutcast.com )〕 online radio stations covering almost every conceivable music genre. Cloud recording services such as DAR.fm 〔(【引用サイトリンク】url=http://www.dar.fm/faq.php )〕 can record from all of these formats. Most PC based Internet radio ripping software is built for Shoutcast-style of streams as this MP3 based protocol offers the widest selection of Internet radio stations. Such wide selection of music is one of the major advantages for recording songs from Internet radio compared to FM and satellite radio as well as the fact that it works with cloud services that do not require a separate audio receiver. The disadvantages may include fairly low audio quality in the saved MP3s, which varies from stream to stream. To begin the recording process, the software connects to the audio stream over TCP. The stream is then buffered 15–30 seconds ahead. Some Internet radio ripping software,〔(【引用サイトリンク】url=http://www.radioget.com/ )〕〔(【引用サイトリンク】url=http://www.radiotracker.com/ )〕 utilize special metadata that are being sent along with actual song content. These programs are generally more successful in determining the boundaries of songs (providing for a cleaner MP3 cut) as well as correctly identifying the song in question. Such metadata, however, are available for only a subset of Internet streams, commonly associated with the Shoutcast standard. The existence of open directories of Shoutcast-compliant radio stations such as Shoutcast enables Internet radio rippers to provide an abundant selection of recordable radio stations that are reasonably expected to emit detailed song metadata. The metadata also help avoid commercials from being recorded along with the songs. 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「Radio music ripping」の詳細全文を読む スポンサード リンク
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