Old Casiotone keyboards came in three distinct families, separated by the method of synthesis.[ citation needed ] Keyboards such as the CT-202 ( c. 1981) use vowel-Consonant synthesis . The later model of this family, the MT-65, is one of the more well known and sought after models, as it also contains auto-accompaniment drum beats and bass lines. Some other keyboards (such as the MT-35 and MT-45) use a combination of two different binary weighted numbers (1 and 64). The larger weight bit provides the fundamental, and the smaller weight bit provides the harmonic complexity. The later, more professional range of keyboards, the CZ series (1984–1986), used phase distortion synthesis , which is mathematically almost identical to Yamaha `s frequency modulation synthesis , although implemented slightly differently in order to avoid patent infringement. After the release of famous Casio SK-1 in 1985, gradually PCM sample based tone generator became dominant in Casio keyboards line. After the 1990s, most Casio keyboards utilize PCM tone generator or its variants. Some early 1980s models in the PT series of keyboards, such as the PT-30, PT-50, PT-80 and PT-82, were not marketed under the Casiotone name. The name was revived again later for models such as the PT-87 (which is basically the same as the PT-82) which was again sold as Casiotone. Some models sold from 1983 onwards included a cartridge bay to accept Casio ROM Packs which contained sheet music in a digital format. The keyboards could play the notes automatically, or (with the exception of the PT-50  ) illuminate LEDs above each key to teach the user how to play the song. Most keyboards came with one ROM Pack as standard, but a large number of additional packs, covering a wide range of musical genres, were available to purchase separately.  The last ROM Pack model was the CT-840, which came out in 1990.
Не ўдалося загрузіць інтэрактыўную транскрыпцыю. Casio`s Mike Martin unboxes, gives a tour and demonstrates the new CT-X700 portable keyboard. Powered by the new AiX sound source, the CT-X700 delivers a new level of performance in a portable keyboard.
Play a grand piano, and hear a meticulously-recorded 9-foot grand in a virtual concert hall. Play an electric piano, and hear vintage phasers and amplifier models that take you back in time. Play a flute, trumpet, or saxophone, and hear natural breath and vibrato. Play a bass, and hear the player switch techniques based on how hard you press the keys. Play a synth, and add an arpeggiator and drum part, and create the next EDM hit. The list goes on. Use the Category button to explore the 600 Tones, and in each category you`ll find an incredible variety of lifelike instruments that go far beyond your expectations. With hundreds of built-in Rhythms, you`ll always have a band ready to jam. The variety of Rhythms spans the globe as well as the history of popular music. You`ll find old favorites and chart-topping hits, all played with incredibly realistic instruments that sound better than ever. The drum kits come alive with authentic acoustic drums, vintage drum machine sounds, and a huge collection of percussion instruments and sound effects. Quickly capture your inspiration with the six-track recorder, or enjoy the library of 100 built-in Songs. Use the Step-Up Lesson system, to easily learn the Songs, with the display showing proper fingering and notation. The CT-X700`s class-compliant USB-MIDI port connects to any Mac, PC, Android or iOS device with no drivers or installation needed. The included music rest is designed to support tablets, and there`s even a built-in smartphone shelf to hold your device as you use the CT-X700 with your favorite music apps. The CT-X700 is compact and lightweight, with a tough molded plastic case. and its optional battery power makes it perfect as a go-anywhere musical partner.