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SoundBlaster
Sound Blaster is a family of sound cards and audio peripherals designed by Creative Technology/Creative Labs of Singapore. The first Sound Blaster card was introduced in 1989. Sound Blaster sound cards were the de facto standard for consumer audio on the IBM PC compatible platform until the widespread transition to Microsoft Windows 95 and the integration of commoditized audio electronics in PCs. Windows 95 standardized the programming interface at the application level and thereby eliminated the importance of backward compatibility with Sound Blaster cards. By 1995, Sound Blaster cards had sold over 15 million units worldwide and accounted for seven out of ten sound card sales. To date, Sound Blaster has sold over 400 million units, and their current product lineup includes USB-powered DACs as well as other audio adapters. Creative Music System and Game Blaster Creative Music System The history of Creative sound cards started with the release of the Creative Music System ... [...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 into 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-b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creative Music System
Sound Blaster is a family of sound cards and audio peripherals designed by Creative Technology/Creative Labs of Singapore. The first Sound Blaster card was introduced in 1989. Sound Blaster sound cards were the de facto standard for consumer audio on the IBM PC compatible platform until the widespread transition to Microsoft Windows 95 and the integration of commoditized audio electronics in PCs. Windows 95 standardized the programming interface at the application level and thereby eliminated the importance of backward compatibility with Sound Blaster cards. By 1995, Sound Blaster cards had sold over 15 million units worldwide and accounted for seven out of ten sound card sales. To date, Sound Blaster has sold over 400 million units, and their current product lineup includes USB-powered DACs as well as other audio adapters. Creative Music System and Game Blaster Creative Music System The history of Creative sound cards started with the release of the Creative Music System ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creative Technology
Creative Technology Ltd., or Creative Labs Pte Ltd., is a Singaporean multinational electronics company mainly dealing with Audio equipment, audio technologies and products such as speakers, headphones, sound cards and other digital media. Founded by Sim Wong Hoo, Creative was highly influential in the advancement of IBM PC–compatible, PC audio in the 1990s following the introduction of its Sound Blaster card and technologies; the company continues to develop Sound Blaster products including embedding them within partnered mainboard manufacturers and laptops. The company also has overseas offices in Shanghai, Tokyo, Dublin and the Silicon Valley. Creative Technology has been listed on the Singapore Exchange (SGX) since 1994. History 1981–1996 Creative Technology was founded in 1981 by childhood friends and Ngee Ann Polytechnic schoolmates Sim Wong Hoo and Ng Kai Wa. Originally a computer repair shop in Pearl's Centre in Chinatown, Singapore, Chinatown, the company event ... [...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 term's 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 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 sampling be performed by measuring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monaural
Monaural sound or monophonic sound (often shortened to mono) is sound intended to be heard as if it were emanating from one position. This contrasts with stereophonic sound or ''stereo'', which uses two separate audio channels to reproduce sound from two microphones on the right and left side, which is reproduced with two separate loudspeakers to give a sense of the direction of sound sources. In mono, only one loudspeaker is necessary, but, when played through multiple loudspeakers or headphones, identical audio signals are fed to each speaker, resulting in the perception of one-channel sound "imaging" in one sonic space between the speakers (provided that the speakers are set up in a proper symmetrical critical-listening placement). Monaural recordings, like stereo ones, typically use multiple microphones fed into multiple channels on a recording console, but each channel is " panned" to the center. In the final stage, the various center-panned signal paths are usually mix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matra
Matra (an acronym for Mécanique Aviation Traction) was a major French industrial Conglomerate (company), conglomerate. Its business activities covered a wide range of industries, notably aerospace manufacturer, aerospace, defence industry, defence, automotive industry, automotive, motorsports, transport and telecommunications. Following the acquisition of vehicle manufacturer Automobiles René Bonnet, the company founded Matra Automobiles during the 1960s, which produced a limited range of racing and sports cars. Its car division worked closely with other vehicle manufacturers, most significantly Renault, prior to the decline and sale of Matra Automobiles during the early 2000s. In addition to road cars, Matra entered into a wide range of businesses, eventually diversifying into Media (communication), media, weaponry, aeronautics, automobiles, and music distribution. Matra was at one point owned by the Floirat family. Throughout much of the company's existence, French business ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MCS-51
The Intel MCS-51 (commonly termed 8051) is a single-chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems. The architect of the Intel MCS-51 instruction set was John H. Wharton.. Intel's original versions were popular in the 1980s and early 1990s, and enhanced binary compatible derivatives remain popular today. It is a complex instruction set computer with separate memory spaces for program instructions and data. Intel's original MCS-51 family was developed using N-type metal–oxide–semiconductor ( NMOS) technology, like its predecessor Intel MCS-48, but later versions, identified by a letter C in their name (e.g., 80C51) use complementary metal–oxide–semiconductor (CMOS) technology and consume less power than their NMOS predecessors. This made them more suitable for battery-powered devices. The family was continued in 1996 with the enhanced 8-bit MCS-151 and the 8/ 16/32-bit MCS-251 family of binary compatible microcontrollers. Whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer components such as central processing units (CPUs) and related products for business and consumer markets. It is one of the world's List of largest semiconductor chip manufacturers, largest semiconductor chip manufacturers by revenue, and ranked in the Fortune 500, ''Fortune'' 500 list of the List of largest companies in the United States by revenue, largest United States corporations by revenue for nearly a decade, from 2007 to 2016 Fiscal year, fiscal years, until it was removed from the ranking in 2018. In 2020, it was reinstated and ranked 45th, being the List of Fortune 500 computer software and information companies, 7th-largest technology company in the ranking. It was one of the first companies listed on Nasdaq. Intel supplies List of I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Signal Processor
A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture optimized for the operational needs of digital signal processing. DSPs are fabricated on metal–oxide–semiconductor (MOS) integrated circuit chips. They are widely used in audio signal processing, telecommunications, digital image processing, radar, sonar and speech recognition systems, and in common consumer electronic devices such as mobile phones, disk drives and high-definition television (HDTV) products. The goal of a DSP is usually to measure, filter or compress continuous real-world analog signals. Most general-purpose microprocessors can also execute digital signal processing algorithms successfully, but may not be able to keep up with such processing continuously in real-time. Also, dedicated DSPs usually have better power efficiency, thus they are more suitable in portable devices such as mobile phones because of power consumption constraints. DSPs often use special m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AdLib
Ad Lib, Inc. was a Canadian manufacturer of sound cards and other computer equipment founded by Martin Prevel, a former professor of music and vice-dean of the music department at the Université Laval. The company's best known product, the ''AdLib Music Synthesizer Card'' (''ALMSC''), or simply the ''AdLib'' as it was called, was the first add-on sound card for IBM compatibles to achieve widespread acceptance, becoming the first de facto standard for audio reproduction. History After development work on the AdLib Music Synthesizer Card had concluded, the company struggled to engage the software development community with their new product. As a result, Ad Lib partnered with Top Star Computer Services, Inc., a New Jersey company that provided quality assurance services to game developers. Top Star's President, Rich Heimlich, was sufficiently impressed by a product demonstration in Quebec in 1987 to endorse the product to his top customers. Sierra On-Line's '' King's Quest IV'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OPL2
The OPL (FM Operator Type-L) series is a family of sound chips developed by Yamaha Corporation, Yamaha. It consists of low-cost sound chips providing frequency modulation synthesis, FM synthesis for use in computing, music and video game applications. The OPL series of chips enabled the creation of affordable sound cards for IBM PC compatibles in the late 1980s such as the Ad Lib, Inc., AdLib and Sound Blaster, effectively becoming a de-facto standard until they were supplanted by "Wavetable synthesis#Background, wavetable synthesis" cards in the early-to-mid 1990s. 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 operato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
