96-667: Logic Studio is a discontinued professional music production suite by Apple Inc. The first version of Logic Studio was unveiled on September 12, 2007. It claims to be the largest collection of modeled instruments, sampler instruments, effect plug-ins, and audio loops ever put in a single application. The package contains Logic Pro , Mainstage , Soundtrack Pro , WaveBurner , Studio Instruments, Studio Effects, Apple Loops, Apple Loops Utility , Impulse Response Utility, Compressor , and QuickTime Pro. It also contains 6 content DVDs containing Jam Pack collections, sound effects, surround music beds, EXS24 samples, and impulse response files and
192-481: A Grammy nomination, the Recording Academy defines a producer: The person who has overall creative and technical control of the entire recording project, and the individual recording sessions that are part of that project. He or she is present in the recording studio or at the location recording and works directly with the artist and engineer. The producer makes creative and aesthetic decisions that realize both
288-454: A datagram is called a packet or frame . Packet is used to describe the overall transmission unit and includes the preamble , start frame delimiter (SFD) and carrier extension (if present). The frame begins after the start frame delimiter with a frame header featuring source and destination MAC addresses and the EtherType field giving either the protocol type for the payload protocol or
384-423: A broad project, the creation of a popular music recording may be split across three specialists: the executive producer , who oversees business partnerships and financing; the vocal producer or vocal arranger, who aids vocal performance via expert critique and coaching of vocal technique, and the record producer or music producer, who, often called simply the producer, directs the overall creative process of recording
480-515: A buffer on the switch in its entirety, its frame check sequence verified and only then the packet is forwarded. In modern network equipment, this process is typically done using application-specific integrated circuits allowing packets to be forwarded at wire speed . When a twisted pair or fiber link segment is used and neither end is connected to a repeater, full-duplex Ethernet becomes possible over that segment. In full-duplex mode, both devices can transmit and receive to and from each other at
576-506: A coaxial cable 0.375 inches (9.5 mm) in diameter, later called thick Ethernet or thicknet . Its successor, 10BASE2 , called thin Ethernet or thinnet , used the RG-58 coaxial cable. The emphasis was on making installation of the cable easier and less costly. Since all communication happens on the same wire, any information sent by one computer is received by all, even if that information
672-471: A cylinder. By the 1930s, a gramophone etched it laterally across a disc. Constrained in tonal range, whether bass or treble, and in dynamic range , records made a grand, concert piano sound like a small, upright piano, and maximal duration was four and a half minutes. Selections and performance were often altered accordingly, and playing this disc—the wax master—destroyed it. The finality often caused anxiety that restrained performance to prevent error. In
768-614: A demo content DVD. On December 8, 2011, it was announced that the boxed version of Logic Studio suite would be discontinued. Instead, Logic Pro and Mainstage would be sold separately on the Mac App Store . Soundtrack Pro was discontinued as part of the move. The Apple Loops Utility software is a small companion utility to Soundtrack Pro , GarageBand , Logic Express , and Logic Pro , all made by Apple Inc. Apple Loops Utility allows users to create loops of audio that can be time-stretched . Audio files converted to "Apple Loops" via
864-581: A doubling of network size. Once repeaters with more than two ports became available, it was possible to wire the network in a star topology . Early experiments with star topologies (called Fibernet ) using optical fiber were published by 1978. Shared cable Ethernet is always hard to install in offices because its bus topology is in conflict with the star topology cable plans designed into buildings for telephony. Modifying Ethernet to conform to twisted-pair telephone wiring already installed in commercial buildings provided another opportunity to lower costs, expand
960-536: A greater number of nodes, and longer link distances, but retains much backward compatibility . Over time, Ethernet has largely replaced competing wired LAN technologies such as Token Ring , FDDI and ARCNET . The original 10BASE5 Ethernet uses a thick coaxial cable as a shared medium . This was largely superseded by 10BASE2 , which used a thinner and more flexible cable that was both cheaper and easier to use. More modern Ethernet variants use twisted pair and fiber optic links in conjunction with switches . Over
1056-879: A guitar and vocal multi-effects processor. The second version, MainStage 2, was released on July 23, 2009, along with updated releases of many of the other applications in the Logic Studio package. Soundtrack Pro is a music composing and audio editing application made by Apple Inc. , which includes a collection of just over 5000 royalty free professional instrument loops and sound effects. The program also allows multitrack projects to be exported directly with Compressor settings. WaveBurner can be used for assembling, mastering, and burning audio CDs . Audio CDs created with WaveBurner can be played back on any audio CD player, and can be used as premasters to produce CDs in large numbers for possible distribution. WaveBurner has several notable features: According to Apple, one needs to meet
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#17328803661551152-407: A leading A&R man of the 1950s. During the decade, A&R executives increasingly directed songs' sonic signatures, although many still simply teamed singers with musicians, while yet others exercised virtually no creative influence. The term record producer in its current meaning—the creative director of song production—appearing in a 1953 issue of Billboard magazine, became widespread in
1248-516: A musical element while playing a previously recorded record, Les Paul developed a recording technique called "sound on sound". By this, the final recording could be built piece by piece and tailored, effecting an editing process. In one case, Paul produced a song via 500 recorded discs. But, besides the tedium of this process, it serially degraded the sound quality of previously recorded elements, rerecorded as ambient sound. Yet in 1948, Paul adopted tape recording, enabling true multitrack recording by
1344-542: A new technique, " overdubbing ". To enable overdubbing, Paul revised the tape recorder itself by adding a second playback head, and terming it the preview head . Joining the preexisting recording head, erase head, and playback head, the preview head allows the artist to hear the extant recording over headphones playing it in synchrony, "in sync", with the present performance being recorded alone on an isolated track. This isolation of multiple tracks enables countless mixing possibilities. Producers began recording initially only
1440-525: A set of recordings in Los Angeles. Later, folklorist Archie Green called this perhaps the earliest printed use of A&R man . Actually, it says neither "A&R man" nor even "A&R", an initialism perhaps coined by Billboard magazine in 1946, and entering wide use in the late 1940s. In the 1920s and 1930s, A&R executives, like Ben Selvin at Columbia Records , Nathaniel Shilkret at Victor Records, and Bob Haring at Brunswick Records became
1536-544: A standard for CSMA/CD based on the IEEE 802 draft. Because the DIX proposal was most technically complete and because of the speedy action taken by ECMA which decisively contributed to the conciliation of opinions within IEEE, the IEEE 802.3 CSMA/CD standard was approved in December 1982. IEEE published the 802.3 standard as a draft in 1983 and as a standard in 1985. Approval of Ethernet on
1632-425: A standard. As part of that process Xerox agreed to relinquish their 'Ethernet' trademark. The first standard was published on September 30, 1980, as "The Ethernet, A Local Area Network. Data Link Layer and Physical Layer Specifications". This so-called DIX standard (Digital Intel Xerox) specified 10 Mbit/s Ethernet, with 48-bit destination and source addresses and a global 16-bit Ethertype -type field. Version 2
1728-401: A switching loop. Autonegotiation is the procedure by which two connected devices choose common transmission parameters, e.g. speed and duplex mode. Autonegotiation was initially an optional feature, first introduced with 100BASE-TX (1995 IEEE 802.3u Fast Ethernet standard), and is backward compatible with 10BASE-T. The specification was improved in the 1998 release of IEEE 802.3. Autonegotiation
1824-448: A woman the reins of an immense, creative project like making a record." Ultimately, the reasons are multiple and not fully clear, although prominently proposed factors include types of sexism and scarcity of female role models in the profession. Women producers known for producing records not their own include Sonia Pottinger, Sylvia Robinson and Carla Olson. In January 2018, a research team led by Stacy L. Smith, founder and director of
1920-530: Is commonly carried over Ethernet and so it is considered one of the key technologies that make up the Internet . Ethernet was developed at Xerox PARC between 1973 and 1974 as a means to allow Alto computers to communicate with each other. It was inspired by ALOHAnet , which Robert Metcalfe had studied as part of his PhD dissertation and was originally called the Alto Aloha Network. Metcalfe's idea
2016-407: Is either dropped or forwarded to another segment. This reduces the forwarding latency. One drawback of this method is that it does not readily allow a mixture of different link speeds. Another is that packets that have been corrupted are still propagated through the network. The eventual remedy for this was a return to the original store and forward approach of bridging, where the packet is read into
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#17328803661552112-433: Is in turn connected to the cable (with thin Ethernet the transceiver is usually integrated into the network adapter). While a simple passive wire is highly reliable for small networks, it is not reliable for large extended networks, where damage to the wire in a single place, or a single bad connector, can make the whole Ethernet segment unusable. Through the first half of the 1980s, Ethernet's 10BASE5 implementation used
2208-476: Is intended for just one destination. The network interface card interrupts the CPU only when applicable packets are received: the card ignores information not addressed to it. Use of a single cable also means that the data bandwidth is shared, such that, for example, available data bandwidth to each device is halved when two stations are simultaneously active. A collision happens when two stations attempt to transmit at
2304-409: Is mandatory for 1000BASE-T and faster. A switching loop or bridge loop occurs in computer networks when there is more than one Layer 2 ( OSI model ) path between two endpoints (e.g. multiple connections between two network switches or two ports on the same switch connected to each other). The loop creates broadcast storms as broadcasts and multicasts are forwarded by switches out every port ,
2400-660: Is more forgiving of overmodulation , whereby dynamic peaks exceed the maximal recordable signal level: tape's limitation, a physical property, is magnetic capacity, which tapers off, smoothing the overmodulated waveform even at a signal nearly 15 decibels too "hot", whereas a digital recording is ruined by harsh distortion of " clipping " at any overshoot. In digital recording, however, a recent advancement, 32-bit float , enables DAWs to undo clipping. Still, some criticize digital instruments and workflows for excess automation, allegedly impairing creative or sonic control. In any case, as production technology has drastically changed, so have
2496-616: Is now used to interconnect appliances and other personal devices . As Industrial Ethernet it is used in industrial applications and is quickly replacing legacy data transmission systems in the world's telecommunications networks. By 2010, the market for Ethernet equipment amounted to over $ 16 billion per year. In February 1980, the Institute of Electrical and Electronics Engineers (IEEE) started project 802 to standardize local area networks (LAN). The DIX group with Gary Robinson (DEC), Phil Arst (Intel), and Bob Printis (Xerox) submitted
2592-430: Is often likened to that of a film director though there are important differences. It is distinct from the role of an executive producer , who is mostly involved in the recording project on an administrative level, and from the audio engineer who operates the recording technology. Varying by project, the producer may or may not choose all of the artists. If employing only synthesized or sampled instrumentation,
2688-436: Is significantly better. In a modern Ethernet, the stations do not all share one channel through a shared cable or a simple repeater hub ; instead, each station communicates with a switch, which in turn forwards that traffic to the destination station. In this topology, collisions are only possible if station and switch attempt to communicate with each other at the same time, and collisions are limited to this link. Furthermore,
2784-536: Is the first step in a broader effort to improve those numbers and increase diversity and inclusion for all in the music industry." Ethernet Ethernet ( / ˈ iː θ ər n ɛ t / EE -thər-net ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3 . Ethernet has since been refined to support higher bit rates ,
2880-472: Is to serve as a method of centralizing any virtual instruments that users might have installed on their computers that are normally used in Apple's DAW software Logic Pro for use in live performance. The instruments can then be played using a pre-recorded MIDI file or via a MIDI controller such as a keyboard. MainStage's other features include the ability to play back pre-recorded backing tracks and to function as
2976-412: Is used by the operating system on the receiving station to select the appropriate protocol module (e.g., an Internet Protocol version such as IPv4 ). Ethernet frames are said to be self-identifying , because of the EtherType field. Self-identifying frames make it possible to intermix multiple protocols on the same physical network and allow a single computer to use multiple protocols together. Despite
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3072-496: Is used for encoding MPEG-1, MPEG-2 for DVD , QuickTime .mov, MPEG-4 (Simple Profile), MPEG-4 H.264 and optional (third Party and often commercial) QuickTime Exporter Components to export to Windows Media, for example. Among its other features is the ability to convert from NTSC to PAL and vice versa, and the ability to 'upconvert' from standard-definition video to high-definition video with feature detail detection to prevent serious quality losses. The Impulse Response Utility
3168-701: Is used to create custom convolution reverbs . Logic Pro is a hybrid 32 / 64 bit digital audio workstation and MIDI sequencer software application for the Mac OS X platform. Originally created by German software developer Emagic , Logic Pro became an Apple product when Apple bought Emagic in 2002. Logic Pro provides software instruments, synthesizers , audio effects and recording facilities for music synthesis. It also supports Apple Loops – royalty-free professionally recorded instrument loops. Audio effects include distortions, dynamics processors, equalization filters, and delays. The Space Designer plugin simulates
3264-518: The 10BASE-T standard introduced a full duplex mode of operation which became common with Fast Ethernet and the de facto standard with Gigabit Ethernet . In full duplex, switch and station can send and receive simultaneously, and therefore modern Ethernets are completely collision-free. For signal degradation and timing reasons, coaxial Ethernet segments have a restricted size. Somewhat larger networks can be built by using an Ethernet repeater . Early repeaters had only two ports, allowing, at most,
3360-787: The Annenberg Inclusion Initiative, based in the USC Annenberg School for Communication and Journalism , issued a report, estimating that in the prior several years, about 2% of popular songs' producers were female. Also that month, Billboard magazine queried, "Where are all the female music producers?" Upon the Annenberg Inclusion Initiative's second annual report, released in February 2019, its department at USC reported, "2018 saw an outcry from artists, executives and other music industry professionals over
3456-545: The OSI model , Ethernet provides services up to and including the data link layer . The 48-bit MAC address was adopted by other IEEE 802 networking standards, including IEEE 802.11 ( Wi-Fi ), as well as by FDDI . EtherType values are also used in Subnetwork Access Protocol (SNAP) headers. Ethernet is widely used in homes and industry, and interworks well with wireless Wi-Fi technologies. The Internet Protocol
3552-573: The Spanning Tree Protocol (STP) to maintain a loop-free, meshed network, allowing physical loops for redundancy (STP) or load-balancing (SPB). Shortest Path Bridging includes the use of the link-state routing protocol IS-IS to allow larger networks with shortest path routes between devices. Advanced networking features also ensure port security, provide protection features such as MAC lockdown and broadcast radiation filtering, use VLANs to keep different classes of users separate while using
3648-707: The "bed tracks"—the rhythm section , including the bassline , drums, and rhythm guitar—whereas vocals and instrument solos could be added later. A horn section , for example, could record a week later, and a string section another week later. A singer could perform her own backup vocals, or a guitarist could play 15 layers. Across the 1960s, popular music increasingly switched from acoustic instruments, like piano, upright bass , acoustic guitar , and brass instruments , to electronic instruments, like electric guitars , keyboards , and synthesizers , employing instrument amplifiers and speakers. These could mimic acoustic instruments or create utterly new sounds. Soon, by combining
3744-457: The 1940s, during World War II, the Germans refined audio recording onto magnetic tape—uncapping recording duration and allowing immediate playback, rerecording, and editing—a technology that premised emergence of record producers in their current roles. Early in the recording industry, a record was attained by simply having all of the artists perform together live in one take. In 1945, by recording
3840-574: The 1950s, on simply improving the record's sonic match to the artists' own live performance. Advances in recording technology, especially the 1940s advent of tape recording —which Les Paul promptly innovated further to develop multitrack recording —and the 1950s rise of electronic instruments, turned record production into a specialty. In popular music, then, producers like George Martin , Phil Spector and Brian Eno led its evolution into its present use of elaborate techniques and unrealistic sounds, creating songs impossible to originate live. After
3936-513: The 1960s. Still, a formal distinction was elusive for some time more. A&R managers might still be creative directors, like William "Mickey" Stevenson , hired by Berry Gordy , at the Motown record label. In 1947, the American market gained audio recording onto magnetic tape. At the record industry's 1880s dawn, rather, recording was done by phonograph , etching the sonic waveform vertically into
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4032-501: The 1980s, production's move from analog to digital further expanded possibilities. By now, DAWs, or digital audio workstations , like Logic Pro , Pro Tools and Studio One , turn an ordinary computer into a production console, whereby a solitary novice can become a skilled producer in a thrifty home studio. In the 2010s, efforts began to increase the prevalence of producers and engineers who are women, heavily outnumbered by men and prominently accoladed only in classical music. As
4128-621: The Apple Loops Utility can also be tagged with their publishing (Author, Comments, etc.) and musical information (Key, Tempo, etc.). Multiple files can be tagged at the same time, a process known as batch tagging. Apple Loops Utility can read both AIFF and WAV file formats , but it will convert the latter to AIFF when saved with tagging information. Compressor is a video and audio media compression and encoding application for use with Final Cut Studio and Logic Studio on Mac OS X . It can be used with Qmaster for clustering . Compressor
4224-637: The Kinks produced some of their own songs, although many such songs are officially credited to specialist producers. Yet especially influential was the Beach Boys, whose band leader Brian Wilson took over from his father Murry within a couple of years after the band's commercial breakthrough. By 1964, Wilson had taken Spector's techniques to unseen sophistication. Wilson alone produced all Beach Boys recordings between 1963 and 1967. Using multiple studios and multiple attempts of instrumental and vocal tracks, Wilson selected
4320-484: The LAN was observed. This is in contrast with token passing LANs (Token Ring, Token Bus), all of which suffer throughput degradation as each new node comes into the LAN, due to token waits. This report was controversial, as modeling showed that collision-based networks theoretically became unstable under loads as low as 37% of nominal capacity. Many early researchers failed to understand these results. Performance on real networks
4416-606: The Logic Pro app, while the other machines on the network run the Logic node app. Logic will then offload the effects and synth processing to the other machines on the network. If the network is fast enough (i.e. gigabit Ethernet ) this can work in near-real time, depending on buffer settings and CPU loads. This allows users to combine the power of several Mac computers to process Logic Pro’s built-in software instruments and plug-ins, and 3rd party processing plug-ins. MainStage's primary purpose
4512-513: The acoustics of audio played in different environments, such as rooms of varying size, or producing the echoes that might be heard on high mountains. Logic Pro can work with MIDI keyboards and control surfaces for input and processing, and for MIDI output. It features real-time scoring in musical notation, supporting guitar tablature , chord abbreviations and drum notation. The application features distributed processing abilities, which can function across an Ethernet LAN . One machine runs
4608-409: The artist's and label's goals in the creation of musical content. Other duties include, but are not limited to: keeping budgets and schedules; adhering to deadlines; hiring musicians, singers, studios, and engineers; overseeing other staffing needs; and editing (Classical projects). The producer often selects and collaborates with a mixing engineer, who focuses on the especially technological aspects of
4704-469: The best combinations of performance and audio quality, and used tape editing to assemble a composite performance. The 1980s advent of digital processes and formats rapidly replaced analog processes and formats, namely, tape and vinyl. Although recording onto quality tape, at least half an inch wide and traveling 15 inches per second, had limited "tape hiss" to silent sections, digital's higher signal-to-noise ratio , SNR, abolished it. Digital also imparted to
4800-505: The capabilities of tape, multitrack recording, and electronic instruments, producers like Phil Spector , George Martin , and Joe Meek rendered sounds unattainable live. Similarly, in jazz fusion , Teo Macero , producing Miles Davis 's 1970 album Bitches Brew , spliced sections of extensive improvisation sessions. In the 1960s, rock acts like the Beatles , the Rolling Stones , and
4896-621: The course of its history, Ethernet data transfer rates have been increased from the original 2.94 Mbit/s to the latest 400 Gbit/s , with rates up to 1.6 Tbit/s under development. The Ethernet standards include several wiring and signaling variants of the OSI physical layer . Systems communicating over Ethernet divide a stream of data into shorter pieces called frames . Each frame contains source and destination addresses, and error-checking data so that damaged frames can be detected and discarded; most often, higher-layer protocols trigger retransmission of lost frames. Per
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#17328803661554992-455: The destination and the source of each data packet. Ethernet establishes link-level connections, which can be defined using both the destination and source addresses. On reception of a transmission, the receiver uses the destination address to determine whether the transmission is relevant to the station or should be ignored. A network interface normally does not accept packets addressed to other Ethernet stations. An EtherType field in each frame
5088-564: The elimination of the chaining limits inherent in non-switched Ethernet have made switched Ethernet the dominant network technology. Simple switched Ethernet networks, while a great improvement over repeater-based Ethernet, suffer from single points of failure, attacks that trick switches or hosts into sending data to a machine even if it is not intended for it, scalability and security issues with regard to switching loops , broadcast radiation , and multicast traffic. Advanced networking features in switches use Shortest Path Bridging (SPB) or
5184-482: The emerging office communication market, including Siemens' support for the international standardization of Ethernet (April 10, 1981). Ingrid Fromm, Siemens' representative to IEEE 802, quickly achieved broader support for Ethernet beyond IEEE by the establishment of a competing Task Group "Local Networks" within the European standards body ECMA TC24. In March 1982, ECMA TC24 with its corporate members reached an agreement on
5280-449: The evolution of Ethernet technology, all generations of Ethernet (excluding early experimental versions) use the same frame formats. Mixed-speed networks can be built using Ethernet switches and repeaters supporting the desired Ethernet variants. Due to the ubiquity of Ethernet, and the ever-decreasing cost of the hardware needed to support it, by 2004 most manufacturers built Ethernet interfaces directly into PC motherboards , eliminating
5376-612: The farthest nodes and creates practical limits on how many machines can communicate on an Ethernet network. Segments joined by repeaters have to all operate at the same speed, making phased-in upgrades impossible. To alleviate these problems, bridging was created to communicate at the data link layer while isolating the physical layer. With bridging, only well-formed Ethernet packets are forwarded from one Ethernet segment to another; collisions and packet errors are isolated. At initial startup, Ethernet bridges work somewhat like Ethernet repeaters, passing all traffic between segments. By observing
5472-403: The following requirements to install all applications: Music production A record producer or music producer is a music creating project's overall supervisor whose responsibilities can involve a range of creative and technical leadership roles. Typically the job involves hands-on oversight of recording sessions; ensuring artists deliver acceptable and quality performances, supervising
5568-504: The group was split into three subgroups, and standardization proceeded separately for each proposal. Delays in the standards process put at risk the market introduction of the Xerox Star workstation and 3Com's Ethernet LAN products. With such business implications in mind, David Liddle (General Manager, Xerox Office Systems) and Metcalfe (3Com) strongly supported a proposal of Fritz Röscheisen ( Siemens Private Networks) for an alliance in
5664-460: The industry are Logic Pro and Pro Tools. Physical devices involved include the main mixer, MIDI controllers to communicate among equipment, the recording device itself, and perhaps effects gear that is outboard. Yet literal recording is sometimes still analog, onto tape, whereupon the raw recording is converted to a digital signal for processing and editing, as some producers still find audio advantages to recording onto tape. Conventionally, tape
5760-439: The installed base, and leverage building design, and, thus, twisted-pair Ethernet was the next logical development in the mid-1980s. Ethernet on unshielded twisted-pair cables (UTP) began with StarLAN at 1 Mbit/s in the mid-1980s. In 1987 SynOptics introduced the first twisted-pair Ethernet at 10 Mbit/s in a star-wired cabling topology with a central hub, later called LattisNet . These evolved into 10BASE-T, which
5856-510: The international level was achieved by a similar, cross- partisan action with Fromm as the liaison officer working to integrate with International Electrotechnical Commission (IEC) Technical Committee 83 and International Organization for Standardization (ISO) Technical Committee 97 Sub Committee 6. The ISO 8802-3 standard was published in 1989. Ethernet has evolved to include higher bandwidth, improved medium access control methods, and different physical media. The multidrop coaxial cable
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#17328803661555952-669: The knowledge demands, although DAWs enables novices, even teenagers at home, to learn production independently. Some have attained professional competence before ever working with an artist. Among female record producers, Sylvia Moy was the first at Motown , Gail Davies the first on Nashville's Music Row , and Ethel Gabriel , with RCA , the first at a major record label . Lillian McMurry , owning Trumpet Records , produced influential blues records. Meanwhile, Wilma Cozart Fine produced hundreds of records for Mercury Records ' classical division. For classical production, three women have won Grammy awards, and Judith Sherman 's 2015 win
6048-507: The lack of women in music" and "the plight of women in music", where women were allegedly being "stereotyped, sexualized, and shut out". Also in February 2019, the Recording Academy 's Task Force on Diversity and Inclusion announced an initiative whereby over 200 artists and producers—ranging from Cardi B and Taylor Swift to Maroon 5 and Quincy Jones —agreed to consider at least two women for each producer or engineer position. The academy's website, Grammy.com , announced, "This initiative
6144-540: The largest computer networks in the world at that time. An Ethernet adapter card for the IBM PC was released in 1982, and, by 1985, 3Com had sold 100,000. In the 1980s, IBM's own PC Network product competed with Ethernet for the PC, and through the 1980s, LAN hardware, in general, was not common on PCs. However, in the mid to late 1980s, PC networking did become popular in offices and schools for printer and fileserver sharing, and among
6240-399: The length of the payload. The middle section of the frame consists of payload data including any headers for other protocols (for example, Internet Protocol) carried in the frame. The frame ends with a 32-bit cyclic redundancy check , which is used to detect corruption of data in transit . Notably, Ethernet packets have no time-to-live field , leading to possible problems in the presence of
6336-571: The manufacturing of record discs. After World War II , pioneering A&R managers who transitioned influentially to record production as now understood, while sometimes owning independent labels, include J. Mayo Williams and John Hammond . Upon moving from Columbia Records to Mercury Records , Hammond appointed Mitch Miller to lead Mercury's popular recordings in New York. Miller then produced country-pop crossover hits by Patti Page and by Frankie Laine , moved from Mercury to Columbia, and became
6432-631: The many diverse competing LAN technologies of that decade, Ethernet was one of the most popular. Parallel port based Ethernet adapters were produced for a time, with drivers for DOS and Windows. By the early 1990s, Ethernet became so prevalent that Ethernet ports began to appear on some PCs and most workstations . This process was greatly sped up with the introduction of 10BASE-T and its relatively small modular connector , at which point Ethernet ports appeared even on low-end motherboards. Since then, Ethernet technology has evolved to meet new bandwidth and market requirements. In addition to computers, Ethernet
6528-401: The mixing of speeds, both of which are critical to the incremental deployment of faster Ethernet variants. In 1989, Motorola Codex introduced their 6310 EtherSpan, and Kalpana introduced their EtherSwitch; these were examples of the first commercial Ethernet switches. Early switches such as this used cut-through switching where only the header of the incoming packet is examined before it
6624-770: The music a perceived "pristine" sound quality, if also a loss of analog recordings' perceived "warm" quality and better-rounded bass. Yet whereas editing tape media requires physically locating the target audio on the ribbon, cutting there, and splicing pieces, editing digital media offers inarguable advantages in ease, efficiency, and possibilities. In the 1990s, digital production reached affordable home computers via production software. By now, recording and mixing are often centralized in DAWs, digital audio workstations —for example, Pro Tools , Logic Pro , Ableton , Cubase , Reason , and FL Studio —for which plugins , by third parties, effect virtual studio technology . DAWs fairly standard in
6720-470: The need for a separate network card. Ethernet was originally based on the idea of computers communicating over a shared coaxial cable acting as a broadcast transmission medium. The method used was similar to those used in radio systems, with the common cable providing the communication channel likened to the Luminiferous aether in 19th-century physics, and it was from this reference that the name Ethernet
6816-470: The network. Despite the physical star topology and the presence of separate transmit and receive channels in the twisted pair and fiber media, repeater-based Ethernet networks still use half-duplex and CSMA/CD, with only minimal activity by the repeater, primarily generation of the jam signal in dealing with packet collisions. Every packet is sent to every other port on the repeater, so bandwidth and security problems are not addressed. The total throughput of
6912-625: The now-ubiquitous twisted pair with 10BASE-T. By the end of the 1980s, Ethernet was clearly the dominant network technology. In the process, 3Com became a major company. 3Com shipped its first 10 Mbit/s Ethernet 3C100 NIC in March 1981, and that year started selling adapters for PDP-11s and VAXes , as well as Multibus -based Intel and Sun Microsystems computers. This was followed quickly by DEC's Unibus to Ethernet adapter, which DEC sold and used internally to build its own corporate network, which reached over 10,000 nodes by 1986, making it one of
7008-450: The port they are intended for, traffic on a switched Ethernet is less public than on shared-medium Ethernet. Despite this, switched Ethernet should still be regarded as an insecure network technology, because it is easy to subvert switched Ethernet systems by means such as ARP spoofing and MAC flooding . The bandwidth advantages, the improved isolation of devices from each other, the ability to easily mix different speeds of devices and
7104-438: The precursors of record producers, supervising recording and often leading session orchestras. During the 1940s, major record labels increasingly opened official A&R departments, whose roles included supervision of recording. Meanwhile, independent recording studios opened, helping originate record producer as a specialty. But despite a tradition of some A&R men writing music, record production still referred to just
7200-438: The producer may be the sole artist. Conversely, some artists do their own production. Some producers are their own engineers, operating the technology across the project: preproduction, recording, mixing , and mastering . Record producers' precursors were "A&R men", who likewise could blend entrepreneurial, creative, and technical roles, but often exercised scant creative influence, as record production still focused, into
7296-463: The recording process, namely, operating the electronic equipment and blending the raw, recorded tracks of the chosen performances, whether vocal or instrumental, into a mix , either stereo or surround sound. Then a mastering engineer further adjusts this recording for distribution on the chosen media. A producer may work on only one or two songs or on an artist's entire album, helping develop the album's overall vision. The record producers may also take on
7392-411: The repeater is limited to that of a single link, and all links must operate at the same speed. While repeaters can isolate some aspects of Ethernet segments , such as cable breakages, they still forward all traffic to all Ethernet devices. The entire network is one collision domain , and all hosts have to be able to detect collisions anywhere on the network. This limits the number of repeaters between
7488-438: The role of executive producer, managing the budget, schedules, contracts, and negotiations. (Artists and Repertoires) In the 1880s, the record industry began by simply having the artist perform at a phonograph . In 1924, the trade journal Talking Machine World , covering the phonography and record industry, reported that Eddie King, Victor Records ' manager of the "New York artist and repertoire department", had planned
7584-549: The same physical infrastructure, employ multilayer switching to route between different classes, and use link aggregation to add bandwidth to overloaded links and to provide some redundancy. In 2016, Ethernet replaced InfiniBand as the most popular system interconnect of TOP500 supercomputers. The Ethernet physical layer evolved over a considerable time span and encompasses coaxial, twisted pair and fiber-optic physical media interfaces, with speeds from 1 Mbit/s to 400 Gbit/s . The first introduction of twisted-pair CSMA/CD
7680-482: The same time, and there is no collision domain. This doubles the aggregate bandwidth of the link and is sometimes advertised as double the link speed (for example, 200 Mbit/s for Fast Ethernet). The elimination of the collision domain for these connections also means that all the link's bandwidth can be used by the two devices on that segment and that segment length is not limited by the constraints of collision detection. Since packets are typically delivered only to
7776-512: The same time. They corrupt transmitted data and require stations to re-transmit. The lost data and re-transmission reduces throughput. In the worst case, where multiple active hosts connected with maximum allowed cable length attempt to transmit many short frames, excessive collisions can reduce throughput dramatically. However, a Xerox report in 1980 studied performance of an existing Ethernet installation under both normal and artificially generated heavy load. The report claimed that 98% throughput on
7872-413: The so-called Blue Book CSMA/CD specification as a candidate for the LAN specification. In addition to CSMA/CD, Token Ring (supported by IBM) and Token Bus (selected and henceforward supported by General Motors ) were also considered as candidates for a LAN standard. Competing proposals and broad interest in the initiative led to strong disagreement over which technology to standardize. In December 1980,
7968-431: The song in its final mix. The producer's roles can include gathering ideas, composing music, choosing session musicians , proposing changes to song arrangements, coaching the performers, controlling sessions, supervising the audio mixing , and, in some cases, supervising the audio mastering . A producer may give creative control to the artists themselves, taking a supervisory or advisory role instead. As to qualifying for
8064-411: The source addresses of incoming frames, the bridge then builds an address table associating addresses to segments. Once an address is learned, the bridge forwards network traffic destined for that address only to the associated segment, improving overall performance. Broadcast traffic is still forwarded to all network segments. Bridges also overcome the limits on total segments between two hosts and allow
8160-478: The switch or switches will repeatedly rebroadcast the broadcast messages flooding the network. Since the Layer 2 header does not support a time to live (TTL) value, if a frame is sent into a looped topology, it can loop forever. A physical topology that contains switching or bridge loops is attractive for redundancy reasons, yet a switched network must not have loops. The solution is to allow physical loops, but create
8256-529: The system was deployed at PARC, Metcalfe and Boggs published a seminal paper. Ron Crane , Yogen Dalal , Robert Garner, Hal Murray, Roy Ogus, Dave Redell and John Shoch facilitated the upgrade from the original 2.94 Mbit/s protocol to the 10 Mbit/s protocol, which was released to the market in 1980. Metcalfe left Xerox in June 1979 to form 3Com . He convinced Digital Equipment Corporation (DEC), Intel , and Xerox to work together to promote Ethernet as
8352-419: The technical engineering of the recording, and coordinating the production team and process. The producer's involvement in a musical project can vary in depth and scope. Sometimes in popular genres the producer may create the recording's entire sound and structure. However, in classical music recording, for example, the producer serves as more of a liaison between the conductor and the engineering team. The role
8448-481: The vast majority have been men. Early in the 2010s, asked for insights that she herself had gleaned as a woman who has specialized successfully in the industry, Wendy Page remarked, "The difficulties are usually very short-lived. Once people realize that you can do your job, sexism tends to lower its ugly head." Still, when tasked to explain her profession's sex disparity, Page partly reasoned that record labels, dominated by men, have been, she said, "mistrustful of giving
8544-766: Was StarLAN , standardized as 802.3 1BASE5. While 1BASE5 had little market penetration, it defined the physical apparatus (wire, plug/jack, pin-out, and wiring plan) that would be carried over to 10BASE-T through 10GBASE-T. The most common forms used are 10BASE-T, 100BASE-TX, and 1000BASE-T . All three use twisted-pair cables and 8P8C modular connectors . They run at 10 Mbit/s , 100 Mbit/s , and 1 Gbit/s , respectively. Fiber optic variants of Ethernet (that commonly use SFP modules ) are also very popular in larger networks, offering high performance, better electrical isolation and longer distance (tens of kilometers with some versions). In general, network protocol stack software will work similarly on all varieties. In IEEE 802.3,
8640-653: Was an early female record producer, having produced both of her Ivor Novello award-winning songs. Across the decades, many female artists have produced their own music. For instance, artists Kate Bush , Madonna , Mariah Carey , Janet Jackson , Beyoncé (even that of Destiny's Child and the Carters ), Lana Del Rey , Taylor Swift , and Lorde have produced or coproduced and Ariana Grande who produces and arranges her vocals as well as being an audio engineer. Still among specialists, despite some prominent women, including Missy Elliott in hip hop and Sylvia Massy in rock,
8736-435: Was derived. Original Ethernet's shared coaxial cable (the shared medium) traversed a building or campus to every attached machine. A scheme known as carrier-sense multiple access with collision detection (CSMA/CD) governed the way the computers shared the channel. This scheme was simpler than competing Token Ring or Token Bus technologies. Computers are connected to an Attachment Unit Interface (AUI) transceiver , which
8832-446: Was designed for point-to-point links only, and all termination was built into the device. This changed repeaters from a specialist device used at the center of large networks to a device that every twisted pair-based network with more than two machines had to use. The tree structure that resulted from this made Ethernet networks easier to maintain by preventing most faults with one peer or its associated cable from affecting other devices on
8928-549: Was essentially to limit the Aloha-like signals inside a cable, instead of broadcasting into the air. The idea was first documented in a memo that Metcalfe wrote on May 22, 1973, where he named it after the luminiferous aether once postulated to exist as an "omnipresent, completely passive medium for the propagation of electromagnetic waves." In 1975, Xerox filed a patent application listing Metcalfe, David Boggs , Chuck Thacker , and Butler Lampson as inventors. In 1976, after
9024-451: Was her fifth. Yet in nonclassical, no woman has won Producer of the Year , awarded since 1975 and only one even nominated for a record not her own, Linda Perry. After Lauren Christy 's 2004 nomination, Linda Perry 's 2019 nomination was the next for a woman. On why no woman had ever won it, Perry commented, "I just don't think there are that many women interested." In the U.K., Lynsey de Paul
9120-463: Was published in November 1982 and defines what has become known as Ethernet II . Formal standardization efforts proceeded at the same time and resulted in the publication of IEEE 802.3 on June 23, 1983. Ethernet initially competed with Token Ring and other proprietary protocols . Ethernet was able to adapt to market needs, and with 10BASE2 shift to inexpensive thin coaxial cable, and from 1990 to
9216-407: Was replaced with physical point-to-point links connected by Ethernet repeaters or switches . Ethernet stations communicate by sending each other data packets : blocks of data individually sent and delivered. As with other IEEE 802 LANs, adapters come programmed with globally unique 48-bit MAC address so that each Ethernet station has a unique address. The MAC addresses are used to specify both
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