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Korg DW-6000
The Korg DW-6000 is a six voice polyphonic analog synthesizer with two single-cycle digitally controlled waveform oscillators and one voltage controlled lowpass filter per voice. As basic material, eight wave cycle waveforms were available to the user through a system Korg called DWGS for Digital controlled Waveform Generator System. The single cycle waveforms are stored on two 256 Kilobit ROM chips, played back through the two digital oscillators and processed by relatively familiar subtractive synthesis facilities. Patch editing is performed by the typical (for the time) method of selecting a parameter then using a single data entry slider to increment or decrement the value. Curiously, the factory patch names are written on the front panel, a trait more apt to be found on consumer keyboards rather than professional synthesizers. Another trait that belies the DW-6000's "budget" role, relative to its more capable and expensive fellow Korg unit Korg DW-8000, is the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtractive Synthesis
Subtractive synthesis is a method of sound synthesis in which partials of an audio signal (often one rich in harmonics) are attenuated by a filter to alter the timbre of the sound. While subtractive synthesis can be applied to any source audio signal, the sound most commonly associated with the technique is that of analog synthesizers of the 1960s and 1970s, in which the harmonics of simple waveforms such as sawtooth, pulse or square waves are attenuated with a voltage-controlled resonant low-pass filter. Many digital, virtual analog and software synthesizers use subtractive synthesis, sometimes in conjunction with other methods of sound synthesis. Examples of subtractive synthesis A human example The basis of subtractive synthesis can be understood by considering the human voice; when a human speaks, sings or makes other vocal noises, the vocal folds act as an oscillator and the mouth and throat as a filter. Consider the difference between singing "oooh" and "aaah" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIDI
MIDI (; Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related audio devices for playing, editing, and recording music. The specification originates in the paper ''Universal Synthesizer Interface'' published by Dave Smith and Chet Wood of Sequential Circuits at the 1981 Audio Engineering Society conference in New York City. A single MIDI cable can carry up to sixteen channels of MIDI data, each of which can be routed to a separate device. Each interaction with a key, button, knob or slider is converted into a MIDI event, which specifies musical instructions, such as a note's pitch, timing and loudness. One common MIDI application is to play a MIDI keyboard or other controller and use it to trigger a digital sound module (which contains synthesized musical sounds) to generate sounds, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korg
, founded as Keio Electronic Laboratories, is a Japanese multinational corporation that manufactures electronic musical instruments, audio processors and guitar pedals, recording equipment, and electronic tuners. Under the Vox brand name, they also manufacture guitar amplifiers and electric guitars. History Korg was founded in 1962 in Tokyo by Tsutomu Kato and Tadashi Osanai as ''Keio Gijutsu Kenkyujo Ltd.''. It later became because its offices were located near the Keio train line in Tokyo and Keio can be formed by combining the first letters of Kato and Osanai. Before founding the company, Kato ran a nightclub. Osanai, a Tokyo University graduate and noted accordionist, regularly performed at Kato's club accompanied by a Wurlitzer Sideman rhythm machine. Dissatisfied with the rhythm machine, Osanai convinced Kato to finance his efforts to build a better one.Julian Colbeck, Keyfax Omnibus Edition, MixBooks, 1996, p. 52. The company's first product was an elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphonic
Polyphony ( ) is a type of musical texture consisting of two or more simultaneous lines of independent melody, as opposed to a musical texture with just one voice, monophony, or a texture with one dominant melodic voice accompanied by chords, homophony. Within the context of the Western musical tradition, the term ''polyphony'' is usually used to refer to music of the late Middle Ages and Renaissance. Baroque forms such as fugue, which might be called polyphonic, are usually described instead as contrapuntal. Also, as opposed to the ''species'' terminology of counterpoint, polyphony was generally either "pitch-against-pitch" / "point-against-point" or "sustained-pitch" in one part with melismas of varying lengths in another. In all cases the conception was probably what Margaret Bent (1999) calls "dyadic counterpoint", with each part being written generally against one other part, with all parts modified if needed in the end. This point-against-point conception is opposed t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthesizer
A synthesizer (also spelled synthesiser) 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. Synthesizer-like instruments emerged in the United States in the mid-20th century with instruments such as the RCA Mark II, which was controlled with punch cards and used hundreds of vacuum tubes. The Moog synthesizer, developed by Robert Moog and first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table-lookup Synthesis
Wavetable synthesis is a sound synthesis technique used to create quasi-periodic waveforms often used in the production of musical tones or notes. Development Wavetable synthesis was invented by Max Mathews in 1958 as part of MUSIC II. MUSIC II “had four-voice polyphony and was capable of generating sixteen wave shapes via the introduction of a wavetable oscillator.” Hal Chamberlin discussed wavetable synthesis in Byte's September 1977 issue. Wolfgang Palm of Palm Products GmbH (PPG) developed his version in the late 1970s and published it in 1979. The technique has since been used as the primary synthesis method in synthesizers built by PPG and Waldorf Music and as an auxiliary synthesis method by Ensoniq and Access. It is currently used in hardware synthesizers from Waldorf Music and in software synthesizers for PCs and tablets, including apps offered by PPG and Waldorf, among others. It was also independently developed by Michael McNabb, who used it in his 1978 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilobit
The kilobit is a multiple of the unit bit for digital information or computer storage. The prefix ''kilo-'' (symbol k) is defined in the International System of Units (SI) as a multiplier of 103 (1 thousand), and therefore, :1 kilobit = = 1000 bits. The kilobit has the unit symbol kbit or kb. Using the common byte size of 8 bits, 1 kbit is equal to 125 bytes. The kilobit is commonly used in the expression of data rates of digital communication circuits as kilobits per second (kbit/s or kb/s), or abbreviated as ''kbps'', as in, for example, ''a 56 kbps PSTN circuit'', or ''a 512 kbit/s broadband Internet connection''. The unit symbol kb (lowercase 'b') is typographically similar to the international standard unit symbol for the kilobyte, i.e. kB (upper case 'B'). The International Electrotechnical Commission (IEC) recommends the symbol bit instead of b. The prefix ''kilo-'' is often used in fields of computer science and information technology w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Read-only Memory
Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device. Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware. Software applications (like video games) for programmable devices can be distributed as plug-in cartridges containing ROM. Strictly speaking, ''read-only memory'' refers to memory that is hard-wired, such as diode matrix or a mask ROM integrated circuit (IC), which cannot be electronically changed after manufacture. Although discrete circuits can be altered in principle, through the addition of bodge wires and/or the removal or replacement of components, ICs cannot. Correction of errors, or updates to the software, require new devices to be manufactured and to replace the installed device. Floating-gate ROM semiconductor memory in the form of era ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Numerically Controlled Oscillator
A numerically-controlled oscillator (NCO) is a digital signal generator which creates a synchronous (i.e. clocked), discrete-time, discrete-valued representation of a waveform, usually sinusoidal. NCOs are often used in conjunction with a digital-to-analog converter (DAC) at the output to create a direct digital synthesizer (DDS). Numerically-controlled oscillators offer several advantages over other types of oscillators in terms of agility, accuracy, stability and reliability. NCOs are used in many communications systems including digital up/down converters used in 3G wireless and software radio systems, digital phase-locked loops, radar systems, drivers for optical or acoustic transmissions, and multilevel FSK/ PSK modulators/demodulators. Operation An NCO generally consists of two parts: *A ''phase accumulator'' (PA), which adds to the value held at its output a frequency control value at each clock sample. *A ''phase-to-amplitude converter'' (PAC), which uses the phase acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korg DW-8000
The Korg DW-8000 synthesizer is an eight-voice polyphonic hybrid digital-analog synthesizer 61-note keyboard instrument released in 1985. By the time of its launch, Korg had already begun a common trend in 1980s synthesizer design: using numerical codes to access or change parameters (synth "voice", tone, etc) with its predecessor - the Korg Poly-61, which was widely regarded as the company's first "knobless" synthesizer. This was a move away from the heavily laden, complex control panels of earlier designs. A more unusual feature of the instrument for the time was the use of single-cycle digital waveforms as the basic building block of sound synthesis, and the inclusion of a digital delay effect. This delay effect was a significant factor in the relative success of the DW-8000 compared to the cheaper DW-6000 released earlier the same year. Physical characteristics Physically, the instrument used a 61-note synthesizer action keyboard. "Synthesizer action" means that it did n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korg DW-6000
The Korg DW-6000 is a six voice polyphonic analog synthesizer with two single-cycle digitally controlled waveform oscillators and one voltage controlled lowpass filter per voice. As basic material, eight wave cycle waveforms were available to the user through a system Korg called DWGS for Digital controlled Waveform Generator System. The single cycle waveforms are stored on two 256 Kilobit ROM chips, played back through the two digital oscillators and processed by relatively familiar subtractive synthesis facilities. Patch editing is performed by the typical (for the time) method of selecting a parameter then using a single data entry slider to increment or decrement the value. Curiously, the factory patch names are written on the front panel, a trait more apt to be found on consumer keyboards rather than professional synthesizers. Another trait that belies the DW-6000's "budget" role, relative to its more capable and expensive fellow Korg unit Korg DW-8000, is the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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