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YMF278
The Yamaha YMF278B, also known as the OPL4 (OPL is an acronym for ''FM Operator Type-L''), is a sound chip that incorporates both frequency modulation synthesis, FM synthesis and sample-based synthesis (often incorrectly called "wavetable synthesis") by Yamaha Corporation, Yamaha. Sample-based synthesis component The sample synthesis part is based on pulse-code modulation (PCM). It features: * Up to 24 simultaneous sounds (voices) * Output sampling frequency of 44.1 kHz (it can also accept 22.05-kHz samples – they are up-sampled to 44.1 kHz before output) * Waveform data lengths of 8, 12, or 16 bits * Stereo output (with a 4-bit/16-level pan for each voice) The PCM synthesizer part accepts: * Up to 4 Megabyte, MB of external memory for wave data * Up to 512 samples * External Read-only memory, ROM or Static random access memory, SRAM memory. If SRAM is connected, then wave data can be downloaded from the OPL4. * Chip select signals for 128 Kilobyte, KB, 512 KB, 1 MB, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha YM3812
The OPL (FM Operator Type-L) series are a family of Sound chip, sound chips developed by Yamaha Corporation, Yamaha. The OPL series are low-cost sound chips providing frequency modulation synthesis, FM synthesis for use in computing, music and video game applications. Internal operation The internal operation of the chips is completely digital. Each FM-tone is generated by a digital oscillator using a form of direct digital synthesis. A low-frequency oscillator and an envelope generator drive an FM operator to produce floating-point output for the DAC. Decapsulation of the chips shows two look-up tables, one for calculating exponents and one for log-sine. This allows the FM operator to calculate its output without any multipliers, using the formula \exp [\log \sin[\varphi_2 + \exp [\log \sin [\varphi_1] + A_1 + A_2] and two 256-entry look-up tables. Both tables are stored as pairs of values rounded to the nearest whole number, with the second value represented as the difference b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha YM3526
The OPL (FM Operator Type-L) series are a family of sound chips developed by Yamaha. The OPL series are low-cost sound chips providing FM synthesis for use in computing, music and video game applications. Internal operation The internal operation of the chips is completely digital. Each FM-tone is generated by a digital oscillator using a form of direct digital synthesis. A low-frequency oscillator and an envelope generator drive an FM operator to produce floating-point output for the DAC. Decapsulation of the chips shows two look-up tables, one for calculating exponents and one for log-sine. This allows the FM operator to calculate its output without any multipliers, using the formula \exp log \sin[\varphi_2 + \exp [\log \sin [\varphi_1+ A_1">varphi_2_+_\exp_[\log_\sin_[\varphi_1.html" ;"title="log \sin[\varphi_2 + \exp [\log \sin [\varphi_1">log \sin[\varphi_2 + \exp [\log \sin [\varphi_1+ A_1 + A_2] and two 256-entry look-up tables. Both tables are stored as pairs of values r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha YMF262
The OPL (FM Operator Type-L) series are a family of sound chips developed by Yamaha. The OPL series are low-cost sound chips providing FM synthesis for use in computing, music and video game applications. Internal operation The internal operation of the chips is completely digital. Each FM-tone is generated by a digital oscillator using a form of direct digital synthesis. A low-frequency oscillator and an envelope generator drive an FM operator to produce floating-point output for the DAC. Decapsulation of the chips shows two look-up tables, one for calculating exponents and one for log-sine. This allows the FM operator to calculate its output without any multipliers, using the formula \exp log \sin[\varphi_2 + \exp [\log \sin [\varphi_1+ A_1">varphi_2_+_\exp_[\log_\sin_[\varphi_1.html" ;"title="log \sin[\varphi_2 + \exp [\log \sin [\varphi_1">log \sin[\varphi_2 + \exp [\log \sin [\varphi_1+ A_1 + A_2] and two 256-entry look-up tables. Both tables are stored as pairs of values r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Card
A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under the control of computer programs. The term ''sound card'' is also applied to external audio interfaces used for professional audio applications. Sound functionality can also be integrated onto the motherboard, using components similar to those found on plug-in cards. The integrated sound system is often still referred to as a ''sound card''. Sound processing hardware is also present on modern video cards with HDMI to output sound along with the video using that connector; previously they used a S/PDIF connection to the motherboard or sound card. Typical uses of sound cards or sound card functionality include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education and entertainment (games) and video projection. Sound cards are also used for computer-base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moonsound
Moonsound is the name of a sound card released for the MSX home-computer system at the Tilburg Computer Fair in 1995. It was designed by electronic engineer Henrik Gilvad and produced by Sunrise Swiss on a semi-hobby basis. It arrived after the US branch of Microsoft abandoned the MSX system, instead focusing on the IBM PC. The name originates from the ''Moonblaster'' software that was written for people to use the hardware plug-in synthesizer. Overview Based on the Yamaha YMF278 (OPL4) sound chip, it is capable of 18 channels of FM synthesis as well as 24 channels of 12 and 16 bit sample-based synthesis. A 2 MB instrument ROM containing multisampled instruments was unusual for its time. From the factory it came equipped with one 128 KB SRAM chip for user samples. History Two generations were made. The first is a small size PCB without a box. Later, a larger size PCB which fit into an MSX cartridge was available. The later version had room for two sample SRAM ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electone
Electone is the trademark used for electronic organs produced by Yamaha Corporation, Yamaha. With the exception of the top end performance models, most Electones are based on the design of the Electric organ#Spinet organs (1949–), spinet electronic organ. Current models are completely digital and contain a variety of sounds, effects, and accompaniments, on top of the ability to store programming data onto memory devices. History After Hammond organ, Hammond pioneered the electronic organ in the 1930s, other manufacturers began to market their own versions of the instrument. By the end of the 1950s, familiar brand names of home organs in addition to Hammond included C.G. Conn, Conn, Kimball International, Kimball, Lowrey organ, Lowrey, and others, while companies such as Allen Organ Company, Allen and Rodgers Instruments, Rodgers manufactured large electronic organs designed for church and other public settings. The Yamaha Electone firstly made as a prototype concept in 1958, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sampling (signal Processing)
In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples". A sample is a value of the signal at a point in time and/or space; this definition differs from the usage in statistics, which refers to a set of such values. A sampler is a subsystem or operation that extracts samples from a continuous signal. A theoretical ideal sampler produces samples equivalent to the instantaneous value of the continuous signal at the desired points. The original signal can be reconstructed from a sequence of samples, up to the Nyquist limit, by passing the sequence of samples through a type of low-pass filter called a reconstruction filter. Theory Functions of space, time, or any other dimension can be sampled, and similarly in two or more dimensions. For functions that vary with time, let ''S''(''t'') be a continuous function (or "signal") to be sampled, and let samp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha Sound Edge SW20 PC
Yamaha may refer to: * Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below). ** Yamaha Music Foundation, an organization established by the authority of Japanese Ministry of Education for the purpose of promoting music education and music popularization ** Yamaha Pro Audio, a Japanese company specializing in products for the professional audio market * Yamaha Motor Company, a Japanese motorized vehicle-producing company. The company was established in 1955 upon separation from Yamaha Corporation (above), and is currently one of the major shareholders of Yamaha Corporation (See: Cross ownership). ** Yamaha Júbilo, a Japanese rugby team ** Yamaha Stadium is a football stadium located in Iwata City, Shizuoka Prefecture, Japan, owned by Yamaha Motors, next to whose plant it is located, and was purpose-designed for use with soccer and rugby union. It is the hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acronym
An acronym is a word or name formed from the initial components of a longer name or phrase. Acronyms are usually formed from the initial letters of words, as in ''NATO'' (''North Atlantic Treaty Organization''), but sometimes use syllables, as in ''Benelux'' (short for ''Belgium, the Netherlands, and Luxembourg''). They can also be a mixture, as in ''radar'' (''Radio Detection And Ranging''). Acronyms can be pronounced as words, like ''NASA'' and ''UNESCO''; as individual letters, like ''FBI'', ''TNT'', and ''ATM''; or as both letters and words, like '' JPEG'' (pronounced ') and ''IUPAC''. Some are not universally pronounced one way or the other and it depends on the speaker's preference or the context in which it is being used, such as '' SQL'' (either "sequel" or "ess-cue-el"). The broader sense of ''acronym''—the meaning of which includes terms pronounced as letters—is sometimes criticized, but it is the term's original meaning and is in common use. Dictionary and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAME
MAME (formerly an acronym of Multiple Arcade Machine Emulator) is a free and open-source emulator designed to recreate the hardware of arcade game systems in software on modern personal computers and other platforms. Its intention is to preserve gaming history by preventing vintage games from being lost or forgotten. It does this by emulating the inner workings of the emulated arcade machines; the ability to actually play the games is considered "a nice side effect". ''Joystiq'' has listed MAME as an application that every Windows and Mac gamer should have. The first public MAME release was by Nicola Salmoria on 5 February 1997. It now supports over 7,000 unique games and 10,000 actual ROM image sets, though not all of the games are playable. MESS, an emulator for many video game consoles and computer systems, based on the MAME core, was integrated into MAME in 2015. History and overview The MAME project was started by Italian programmer Nicola Salmoria. It began as a project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. Primarily in the late 1970s and 1980s, the term home computer was also used. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with the machines. While personal computer users may develop their own applications, usually these systems run commercial software, free-of-charge software ("freeware"), which is most often proprietary, or free and open-source software, which is provided in "ready-to-run", or binary, form. Software for personal computers is typically developed and distributed independently from the hardware or operating system ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Musical Instruments
Electronic may refer to: *Electronics, the science of how to control electric energy in semiconductor * ''Electronics'' (magazine), a defunct American trade journal *Electronic storage, the storage of data using an electronic device *Electronic commerce or e-commerce, the trading in products or services using computer networks, such as the Internet *Electronic publishing or e-publishing, the digital publication of books and magazines using computer networks, such as the Internet *Electronic engineering, an electrical engineering discipline Entertainment *Electronic (band), an English alternative dance band ** ''Electronic'' (album), the self-titled debut album by British band Electronic *Electronic music, a music genre *Electronic musical instrument *Electronic game, a game that employs electronics See also *Electronica, an electronic music genre *Consumer electronics Consumer electronics or home electronics are electronic (analog or digital) equipment intended for everyday ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
