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The Roland MC-909 Sampling Groovebox combines the features of a synthesizer, sequencer, and sampler, with extensive hands-on control of both the sound engine and the sequencing flow. It was intended primarily for live performance of pre-programmed patterns consisting of up to 16 tracks of MIDI data. It was released by Roland Corporation on October 8, 2002. This product was announced at the AES Fall Convention in 2002. It is the direct successor to the Roland MC-505, and is the predecessor to the Roland MC-808 which eventually ended the fortunate "Groovebox" line of products by Roland which began in the mid 1990s with the original MC-303. It was developed from the blueprint of Roland's own "Fantom" workstation and uses the same structure and operating system, with some differences regarding the Patterns section, not implemented in the Fantom. ==Sound generation == The MC-909 has a ROM-based sound generator (sometimes referred to as a rompler.) Its patches are built from up to four tones. The tones are based on waves stored in the machine. Patches can also utilize user-created samples. Roland's literature states that the MC-909 has "new-generation XV synthesis", the synth in the MC-909 is a very similar sound engine to that of the XV-5050 64-Voice Synthesizer Module. The number of PCM waveforms is 693, ranging from vintage synths to strings, drums, guitars and pianos. It can be expanded by adding one SRX card from 12 different cards available. The MC-909 is always in sequencer mode, as opposed to other workstations that have also a simple Voice or Combination mode for straight playing. Straight playing via an external keyboard is however possible directly from the sequencer mode by simply selecting one of the 16 tracks (parts) where a Patch (voice, sound) is stored. In this case the 909 performs as a regular, 16-part multitimbral sound module, that happens to have a sequencer, too. In essence, the 909 can be used as a very capable sound module without ever needing to fire up its sequencer. The MC-909 is the first Roland groovebox to feature a sampler. It can record audio from any of the external audio inputs, SPDIF connectors, or import wav and aiff files from a computer using a USB port. The sampler can be upgraded up to a total of 272 MB RAM (16 MB User + 256 MB PC-100 or PC-133 168-Pin DIMM Module), and the samples can be also be stored on a 128 MB 3.3 volt Smartmedia card. The unit is also able to store on two 128 MB Smartmedia cards, if you have larger than 256 MB DATA in its user memory. There are tricks from user forum sites that have found ways to go beyond this limitation using xD-Picture Cards as other means for storage. 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「Roland MC-909」の詳細全文を読む スポンサード リンク
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