The original TimeTrax software was developed by a Canadian, Scott MacLean. audio disambiguation, ripping and tagging, de-aggregation) for the three largest and widespread music distribution methods: satellite radio, Internet streaming and traditional broadcast. TimeTrax was the first company that offered music ripping (a.k.a. It developed this portion of its technology hardware and software offering with Swedish company PopCatcher. Notably, TimeTrax went on to extend its technology in a seamless package for FM radio, and further, any music source. Timetrax went on to also include the ability to rip and tag music from the online music streaming services that were being provided by both XM and Sirius. However, TimeTrax almost immediately released a hardware companion product that turned virtually any device capable of receiving XM satellite radio and its primary competitor at the time, Sirius Satellite Radio. To end the problem for good, XM discontinued the XM PCR receiver. After a legal battle, the TimeTrax software is no longer being sold. TimeTrax, or some other similar software, then controls the radio and records the incoming audio. The PCR plugs into a PC USB port and line-in jack. The device itself is simple enough: an XM "can" (the actual receiver and decoding hardware) is enclosed in a box with a USB interface chip and audio connector. The XM PCR was the first device to allow audio stream ripping from XM radio. TimeTrax is both a software and hardware solution: the TimeTrax software can interface with any PC-compatible satellite receiver, and the adapter box is necessary to allow certain receivers to interface with a PC. The software saves songs as individual MP3 files after identifying the name and the artist. TimeTrax has developed software that can record the audio broadcast on XM satellite radio. The metadata also help avoid commercials from being recorded along with the songs. 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. Such metadata, however, are available for only a subset of Internet streams, commonly associated with the Shoutcast standard. 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. Some Internet radio ripping software, utilize special metadata that are being sent along with actual song content. The stream is then buffered 15–30 seconds ahead. To begin the recording process, the software connects to the audio stream over TCP. The disadvantages may include fairly low audio quality in the saved MP3s, which varies from stream to stream. 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. 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. The Shoutcast database featured 34,281 online radio stations covering almost every conceivable music genre.Ĭloud recording services such as DAR.fm, Quick Record can record from all of these formats. Many AM/FM stations simulcast online use the more efficient AAC format while Internet-only streams more typically use MP3. Popular audio formats for Internet radio include AAC, AAC+, and MP3.
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