The Kurzweil K250, manufactured by Kurzweil Music Systems, was an early electronic musical instrument which produced sound from sampled sounds compressed in ROM, faster than common mass storage such as a disk drive. Acoustic sounds from brass, percussion, string and woodwind instruments as well as sounds created using waveforms from oscillators were utilized. Designed for professional musicians, it was invented by Raymond Kurzweil, founder of Kurzweil Computer Products, Inc., Kurzweil Music Systems and Kurzweil Educational Systems with consultation from Stevie Wonder; Lyle Mays, an American jazz pianist; Alan R. Pearlman, founder of ARP Instruments Inc.; and Robert Moog, inventor of the Moog synthesizer.
In the mid-1970s, Raymond Kurzweil invented the first multi-font reading machine for the blind, consisting of the earliest CCD flat-bed scanner and text-to-speech synthesizer. In 1976, the blind musician, Stevie Wonder, heard about the demonstration of this new machine on The Today Show , and later became the user of the first production Kurzweil Reading Machine, beginning a long-term association between the two. [1]
In 1982, Stevie Wonder invited Raymond Kurzweil to his studio in Los Angeles, and asked if "we could use the extraordinarily flexible computer control methods on the beautiful sounds of acoustic instruments?" [2] In response, and with Stevie Wonder as musical advisor, Raymond Kurzweil founded Kurzweil Music Systems. [1] Kurzweil used the sampling technique that had been exploited in reading machines (such as the Kurzweil Reading Machine used by Wonder) and adapted it for music. Reading machines sample the characters in a text document to produce an image. The machines convert the light and dark areas of the image into text data stored in (RAM) and/or (EPROM), then output spoken text with a text-to-speech synthesizer.
The Kurzweil K250 utilized a similar concept: Sounds were sampled, compressed & converted into digital data, stored in ROM and reproduced as sound via 12 separate DACs (digital-to-analog converters) and analog envelopes (CEM 3335), programmed to simulate the dynamics and sustain of the original sound. This method was called "contoured modelling" by Kurzweil in marketing material and regarded as a proprietary scheme. [3] Synthesizer pioneer Bob Moog, then a consultant at Kurzweil, was asked about the method in an article in Electronic Sound Maker in 1985:
About the 250: Kurzweil mentions something called "contoured sound modelling". Can you explain that a little? R.M: Yeah, it's a proprietary scheme... and 'proprietary' is a polite word for "we're not going to tell you what it is!" It is a very complex, elaborate software, a set of programs that are used to compress the data of a series of sounds, so that we can get it into a reasonable amount of memory. If we took just raw sounds and digitized them — every sound, every key on the piano is different, for instance. And within one key, every level of dynamics has a different waveform. It's just not that it's louder, the whole waveform changes.
Which is a much more natural sound.
R.M: Yeah, now we want to get all that information in there, we want to be able to construct those differences, but we want to eliminate all the superfluous information, you know, the redundancy, the information that we don't need in order to reconstruct this. And that's what "contoured sound modelling" is all about. If all the sounds that are in the machine now were without the data being compressed, it would take more memory chips than are made in a year!
This method greatly reduced the number of then-expensive EPROMS needed while maintaining the dynamics of the sound, which would be otherwise compromised by compression. The CEM 3335's integrated voltage controlled amplifier [4] provided exponential gain to reconstruct the dynamics that were lost in the compression.
A prototype of the Kurzweil K250 was manufactured for Stevie Wonder in 1983. It featured Braille buttons along with sliders (potentiometers) for various controls and functions, an extensive choice of acoustic and synthesized sounds, a sampler to record sounds onto RAM, and a music sequencer with battery-backed RAM for composition. During production of the Kurzweil K250, at least five units were manufactured for Stevie Wonder.
The Kurzweil K250 was unveiled during the 1984 NAMM Winter Music & Sound Market trade show. The Kurzweil K250 was manufactured until 1990, initially as an 88-key fully weighted keyboard or as an expander unit without keys called the Kurzweil K250 XP. A few years later, a rack mount version called the Kurzweil K250RMX also became available.
The Kurzweil K250 was the first electronic instrument to faithfully reproduce the sounds of an acoustic grand piano. [5] It could play up to 12 notes simultaneously (known as 12-note polyphony) by using individual sounds as well as layered sounds (playing multiple sounds on the same note simultaneously, also known as being multitimbral). Until then the majority of electronic keyboards used synthesized sounds and emulated acoustical instrument sounds created in other electronic instruments using various waveforms produced by oscillators, and prior to that there were instruments such as the Mellotron and Orchestron which used tape loops. Five other manufactured digital sampled sound musical instruments were available at that time: E-mu Corporation's E-mu Emulator and E-mu Emulator II; Fairlight Corporation's Fairlight CMI; and New England Digital's Synclavier I and Synclavier II.
Electronic music broadly is a group of music genres that employ electronic musical instruments, circuitry-based music technology and software, or general-purpose electronics in its creation. It includes both music made using electronic and electromechanical means. Pure electronic instruments depended entirely on circuitry-based sound generation, for instance using devices such as an electronic oscillator, theremin, or synthesizer. Electromechanical instruments can have mechanical parts such as strings, hammers, and electric elements including magnetic pickups, power amplifiers and loudspeakers. Such electromechanical devices include the telharmonium, Hammond organ, electric piano and electric guitar.
An electronic musical instrument or electrophone is a musical instrument that produces sound using electronic circuitry. Such an instrument sounds by outputting an electrical, electronic or digital audio signal that ultimately is plugged into a power amplifier which drives a loudspeaker, creating the sound heard by the performer and listener.
Robert Arthur Moog was an American engineer and electronic music pioneer. He was the founder of the synthesizer manufacturer Moog Music and the inventor of the first commercial synthesizer, the Moog synthesizer, which debuted in 1964. In 1970, Moog released a more portable model, the Minimoog, described as the most famous and influential synthesizer in history. Among Moog's honors are a Technical Grammy Award, received in 2002, and an induction into the National Inventors Hall of Fame.
Digital music technology encompasses digital instruments, computers, electronic effects units, software, or digital audio equipment by a performer, composer, sound engineer, DJ, or record producer to produce, perform or record music. The term refers to electronic devices, instruments, computer hardware, and software used in performance, playback, recording, composition, mixing, analysis, and editing of music.
An analog synthesizer is a synthesizer that uses analog circuits and analog signals to generate sound electronically.
The Minimoog is an analog synthesizer first manufactured by Moog Music between 1970 and 1981. Designed as a more affordable, portable version of the modular Moog synthesizer, it was the first synthesizer sold in retail stores. It was first popular with progressive rock and jazz musicians and found wide use in disco, pop, rock and electronic music.
Wavetable synthesis is a sound synthesis technique used to create quasi-periodic waveforms often used in the production of musical tones or notes.
The Fairlight CMI is a digital synthesizer, sampler, and digital audio workstation introduced in 1979 by Fairlight. It was based on a commercial licence of the Qasar M8 developed by Tony Furse of Creative Strategies in Sydney, Australia. It was one of the earliest music workstations with an embedded sampler and is credited for coining the term sampling in music. It rose to prominence in the early 1980s and competed with the Synclavier from New England Digital.
An electronic keyboard, portable keyboard, or digital keyboard is an electronic musical instrument based on keyboard instruments. Electronic keyboards include synthesizers, digital pianos, stage pianos, electronic organs and digital audio workstations. In technical terms, an electronic keyboard is a rompler-based synthesizer with a low-wattage power amplifier and small loudspeakers.
The Beach Boys is the 25th studio album by American rock band the Beach Boys, released on June 10, 1985. Produced by Steve Levine, the album is the band's first after the drowning of founding member Dennis Wilson. It was also the band's first album to be recorded digitally and the last released by James William Guercio's Caribou Records. The record sold poorly, charting at number 52 in the U.S. and number 60 in the UK.
A rompler is an electronic musical instrument that plays pre-fabricated sounds based on audio samples. The term rompler is a blend of the terms ROM and sampler. In contrast to samplers, romplers do not record audio. Both may have additional sound editing features, such as layering several waveforms and modulation with ADSR envelopes, filters and LFOs.
Kurzweil Music Systems is an American company that produces electronic musical instruments. It was founded in 1982 by Stevie Wonder (musician), Ray Kurzweil (innovator) and Bruce Cichowlas.
The Emulator is a series of digital sampling synthesizers using floppy-disk storage that was manufactured by E-mu Systems from 1981 until 2002. Although it was not the first commercial sampler, the Emulator was innovative in its integration of computer technology and was among the first samplers to find widespread usage among musicians. While costly, its price was considerably lower than those of its early competitors, and its smaller size increased its portability and, resultantly, practicality for live performance. The line was discontinued in 2002.
The Realistic Concertmate MG-1 is an analog synthesizer manufactured by Moog Music in 1981 and sold by Radio Shack from 1982 to 1983 under their "Realistic" brand name. It was produced without some standard Moog features, such as pitch and modulation wheels, as a cost-cutting measure aimed at achieving a lower price for the consumer market. The synthesizer also featured a pair of pass-through RCA jacks, which allowed users to mix radio or records into the final live synthesized sound output.
The Moog synthesizer is a modular synthesizer invented by the American engineer Robert Moog in 1964. Moog's company, R. A. Moog Co., produced numerous models from 1965 to 1981, and again from 2014. It was the first commercial synthesizer and established the analog synthesizer concept.
Tonto's Expanding Head Band was a British-American electronic music duo consisting of Malcolm Cecil and Robert Margouleff. Despite releasing only two albums in the early 1970s, the duo were influential in the development of electronic music and helped bring the synthesizer to the mainstream through session and production work for other musicians and extensive commercial advertising work.
Virtual orchestra refers to a variety of different types of technologies and art forms. Most commonly used to refer to orchestral simulations, either for pre-recorded or live environments, it also has been used in other ways, such as IRCAM's virtual orchestra database.
A synthesizer is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis and frequency modulation synthesis. These sounds may be altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically played with keyboards or controlled by sequencers, software or other instruments and may be synchronized to other equipment via MIDI.
Robert Margouleff is an American record producer, recording engineer, electronic music pioneer, audio expert, and film producer.
The history of home keyboards lies in mechanical musical instrument keyboards, electrified keyboards and 1960s and 1970s synthesizer technologies.