A phonograph record, alternatively termed a gramophone record (particularly in British English) or a vinyl record (referring specifically to later iterations), constitutes an analog medium for sound storage. This medium takes the form of a flat disc featuring an inscribed, modulated spiral groove, which typically commences near the outer periphery and terminates towards the disc's center. The auditory content stored within this groove is rendered audible through playback on a phonograph, also known as a gramophone, turntable, or record player.
A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the outside edge and ends near the center of the disc. The stored sound information is made audible by playing the record on a phonograph (or "gramophone", "turntable", or "record player").
Records have been manufactured in diverse formats, offering playback durations ranging from several minutes to approximately 30 minutes per side. For approximately five decades, these discs were predominantly fabricated from shellac, operating at a standard rotational speed of 78 revolutions per minute (rpm), which led to their colloquial designation as "78s". Subsequent to the 1940s, "vinyl" records, composed of polyvinyl chloride (PVC), emerged as the industry standard, supplanting the earlier 78s and maintaining their prominence to the present day. These vinyl records have since been produced in various dimensions and speeds, most notably 7-inch discs played at 45 rpm, typically for singles and referred to as 45s, and 12-inch discs played at 33+§78§⁄§910§ rpm. The latter, known as LPs or "long-playing records," are commonly used for full-length albums and represent the most widespread format currently.
Overview
Throughout the 20th century, the phonograph record served as the predominant medium for musical reproduction. Initially coexisting with the phonograph cylinder from the late 1880s, it had largely superseded this earlier format by approximately 1912. Records maintained the largest market share even with the widespread introduction of newer formats, such as the compact cassette. However, by the 1980s, digital media, specifically the compact disc (CD), began to capture a greater market share, leading to the record's departure from mainstream prominence in 1991. Since the 1990s, records have continued to be produced and sold on a more limited scale. During the 1990s and early 2000s, they were frequently utilized by disc jockeys (DJs), particularly within dance music genres, and also garnered increasing interest from audiophiles. The phonograph record has experienced a niche resurgence in the early 21st century, demonstrating growing popularity throughout the 2010s and 2020s.
Phonograph records are typically characterized by several key attributes: their diameter, measured in inches (e.g., 12-inch, 10-inch, 7-inch); their rotational playback speed, expressed in revolutions per minute (rpm), which includes values such as 8+§34§⁄§56§, 16+§1112§⁄§1314§, 33+§1920§⁄§2122§, 45, and 78 rpm; and their temporal capacity, which is a function of both diameter and speed. Specific capacity formats include the LP (long play), typically a 12-inch disc played at 33+§2728§⁄§2930§ rpm; the EP (extended play), available as a 12-inch or 7-inch disc played at 33+§3536§⁄§3738§ or 45 rpm; and the Single, a 7-inch or 10-inch disc played at 45 or 78 rpm. Further descriptors encompass their reproductive quality or fidelity level (e.g., high-fidelity, orthophonic, full-range) and the configuration of audio channels (e.g., mono, stereo, quadraphonic).
The idiom "broken record" describes a playback malfunction wherein the stylus repeatedly returns to a preceding groove, causing the same audio segment to be replayed continuously.
Naming Conventions
Diverse appellations for this medium include phonograph record (predominant in American English), gramophone record (common in British English), as well as "record," "vinyl," and "LP" (originally a trademark of Columbia Records). Other terms comprise "black disc" and "album," alongside more colloquial designations such as "platter," "wax," or "liquorice pizza."
Historical Development
The production of disc records commenced in the late 19th century, initially contending with the pre-existing cylinder records. By the 1910s, factors such as cost-effectiveness, user convenience, and storage advantages contributed to the disc record's market dominance. The prevalent disc record format subsequently became known as "78s," referencing its playback speed in revolutions per minute, although this speed was not formally standardized until the late 1920s. The late 1940s marked the introduction of new vinyl-pressed formats: the 45-rpm single and the 33-rpm long-playing LP. These formats progressively supplanted the established "78s" throughout the ensuing decade. Furthermore, the late 1950s witnessed the commercial debut of stereophonic sound on these discs.
Precursors
The phonautograph was conceived by the Frenchman Édouard-Léon Scott de Martinville by 1857. This device, however, lacked the capability for sound playback, as Scott's intention was for individuals to interpret the visual tracings, which he termed phonautograms. Preceding this invention, tuning forks had been similarly employed to generate direct graphical representations of vibrations from sonorous objects, a technique demonstrated by the English physicist Thomas Young in 1807.
Thomas Edison's invention of the phonograph in 1877 marked a significant advancement, enabling the etching of sound recordings onto phonograph cylinders. Distinct from the phonautograph, Edison's device possessed the dual capability of both recording and reproducing sound, utilizing separate needles for each operation.
Initial Disc Recordings
Emile Berliner pioneered the creation of the first commercially available disc records during the 1880s. Berliner enhanced recording fidelity, while his manufacturing collaborator, Eldridge R. Johnson, who operated a machine shop in Camden, New Jersey, subsequently refined the gramophone's mechanism. Johnson's improvements included a spring motor and a speed-regulating governor, achieving a sound quality comparable to Edison's cylinders. Following the abandonment of Berliner's "Gramophone" trademark in the United States due to legal considerations, Johnson's and Berliner's distinct enterprises restructured in 1901 to establish the Victor Talking Machine Company in Camden, New Jersey. This new entity's products would subsequently achieve market dominance for several decades.
Berliner's original factory in Montreal, which later became the Canadian division of RCA Victor, remains extant. A dedicated museum, the Musée des ondes Emile Berliner, commemorates Berliner's contributions in Montreal.
Developments in 78 RPM Disc Technology
Initial Playback Speeds
Early disc recordings exhibited considerable variability in both size and rotational speed, ranging from 60 to 130 revolutions per minute (rpm). By 1894, Emile Berliner's United States Gramophone Company was already marketing single-sided, 7-inch discs, which were advertised with a nominal standard speed of approximately 70 rpm.
According to a prominent audio recording handbook, speed regulators, also known as governors, constituted a significant advancement rapidly implemented after 1897. An illustration of an 1898 hand-cranked Berliner Gramophone depicts such a governor, indicating that spring-driven mechanisms had superseded manual drives. The handbook further observes:
The speed regulator was furnished with an indicator that showed the speed when the machine was running so that the records, on reproduction, could be revolved at exactly the same speed...The literature does not disclose why 78 rpm was chosen for the phonograph industry, apparently this just happened to be the speed created by one of the early machines and, for no other reason continued to be used.
In 1912, the Gramophone Company formally established 78 rpm as its recording standard, a decision influenced by the average speed of its contemporary releases. Concurrently, the company began marketing players equipped with governors calibrated for a nominal speed of 78 rpm. By 1925, 78 rpm had largely become an industry-wide standard. Nevertheless, the precise rotational speed varied depending on the local alternating current (AC) electricity supply frequency. In regions with a 60 Hz (cycles per second) mains supply, the actual speed was 78.26 rpm, corresponding to a 60 Hz stroboscope illuminating 92-bar calibration markings. Conversely, in 50 Hz regions, the speed was 77.92 rpm, determined by a 50 Hz stroboscope illuminating 77-bar calibration markings.
During the early 1920s, efforts were undertaken to extend disc playing time. World Records, for instance, manufactured discs designed to operate at a constant linear velocity, regulated by an auxiliary speed governor patented by Noel Pemberton Billing.
Acoustic Recording Techniques
Initial recordings relied exclusively on acoustic methods, wherein sound waves were captured by a horn and directed to a diaphragm, which in turn vibrated the cutting stylus. This process resulted in limited sensitivity and a narrow, irregular frequency response, imparting a distinctive tonal quality to acoustic recordings. Performers, particularly vocalists, were often required to position themselves in close proximity to the recording horn. One technique employed to mitigate resonance involved wrapping the recording horn with tape.
Even instruments like drums could be effectively captured and reproduced in early jazz and military band recordings, provided they were strategically arranged and positioned. Louder instruments, such as drums and trumpets, were typically placed at a greater distance from the sound-collecting horn. Lillian Hardin Armstrong, a member of King Oliver's Creole Jazz Band, recounted an incident during their 1923 recording session at Gennett Records. She recalled that initially, Oliver and his second trumpeter, Louis Armstrong, stood side-by-side, rendering Oliver's trumpet inaudible. Consequently, Armstrong was repositioned approximately fifteen feet away in a corner, appearing disheartened.
Electrical Recording Technology
In the early 1920s, engineers at Western Electric, alongside independent innovators like Orlando Marsh, pioneered technologies for sound capture via microphones, subsequent amplification using vacuum tubes (referred to as valves in the UK), and the application of this amplified signal to power an electromechanical recording head. These advancements by Western Electric yielded a significantly broader and more consistent frequency response, leading to recordings that were notably richer, more distinct, and acoustically authentic. Previously unrecordable subtle or remote audio elements became readily capturable. Recording volume was subsequently constrained solely by the physical groove spacing on the disc and the amplification capabilities of the playback equipment. Victor and Columbia subsequently licensed Western Electric's novel electrical system, producing the inaugural electrical discs in the spring of 1925. The initial electrically recorded Victor Red Seal release featured Chopin's "Impromptus" and Schubert's "Litanei," performed by pianist Alfred Cortot at Victor's Camden, New Jersey, studios.
A 1926 advertisement from Wanamaker's, published in The New York Times, promoted records produced "by the latest Victor process of electrical recording." This innovation was widely acknowledged as a significant breakthrough; by 1930, a music critic for the Times articulated:
... the time has come for serious musical criticism to take account of performances of great music reproduced by means of the records. To claim that the records have succeeded in exact and complete reproduction of all details of symphonic or operatic performances ... would be extravagant ... [but] the article of today is so far in advance of the old machines as hardly to admit classification under the same name. Electrical recording and reproduction have combined to retain vitality and color in recitals by proxy.
The Orthophonic Victrola incorporated an internal folded exponential horn, a sophisticated design predicated on impedance-matching and transmission-line theories, engineered to deliver a comparatively flat frequency response. Victor's inaugural public demonstration of the Orthophonic Victrola, held on October 6, 1925, at the Waldorf-Astoria Hotel, garnered front-page coverage in The New York Times, which subsequently reported:
The audience broke into applause ... John Philip Sousa [said]: '[Gentlemen], that is a band. This is the first time I have ever heard music with any soul to it produced by a mechanical talking machine' ... The new instrument is a feat of mathematics and physics. It is not the result of innumerable experiments, but was worked out on paper in advance of being built in the laboratory ... The new machine has a range of from 100 to 5,000 [cycles per second], or five and a half octaves ... The 'phonograph tone' is eliminated by the new recording and reproducing process.
During the initial years of the Great Depression in the 1930s, record sales experienced a dramatic decline, nearly leading to the collapse of the entire American recording industry. In 1932, RCA Victor launched the Duo Jr., a fundamental and economical turntable engineered for integration with their existing radio receivers. Edward Wallerstein, then general manager of the RCA Victor Division, credited this device as "instrumental in revitalizing the industry."
Materials for 78 rpm Records
Shellac records remained in production throughout the 78 rpm era, which extended until 1948 in industrialized countries.
During World War II, the United States Armed Forces manufactured thousands of 12-inch vinyl 78 rpm V-Discs for distribution to troops stationed abroad. Post-war, vinyl became a more viable material due to the widespread adoption of new record players featuring lightweight crystal pickups and precision-ground styli composed of sapphire or specialized osmium alloys. By late 1945, RCA Victor commenced offering "De Luxe" transparent red vinylite pressings of select Red Seal classical 78s, priced at a de luxe premium. Subsequently, Decca Records launched vinyl Deccalite 78s, and other record labels utilized diverse vinyl formulations marketed under trademarks such as Metrolite, Merco Plastic, and Sav-o-flex. These alternative formulations were primarily employed for manufacturing "unbreakable" children's records and specialized thin vinyl pressings for radio station DJs.
Recording Duration for 78 rpm Records
The duration of a phonograph record's playback is directly proportional to the available groove length, which is then divided by the turntable speed. The total groove length, in turn, is determined by the spacing of the grooves and the record's diameter. In the early 20th century, initial disc recordings offered a two-minute playback duration, mirroring that of cylinder records. Victor's introduction of the 12-inch disc in 1903 extended playback time to three and a half minutes. Consequently, the standard 10-inch, 78 rpm record, capable of holding approximately three minutes of audio per side, imposed this duration limit on most popular recordings. For instance, in 1923, when King Oliver's Creole Jazz Band, featuring Louis Armstrong in his inaugural recordings, produced 13 sides at Gennett Records in Richmond, Indiana, one side measured 2:09, while four others ranged from 2:52 to 2:59.
In January 1938, Milt Gabler commenced recording for Commodore Records, utilizing 12-inch discs to accommodate extended continuous performances. Eddie Condon elucidated, stating, "Gabler recognized the necessity for developmental space within a jam session." Initially, the first two 12-inch recordings did not fully exploit their extended capacity: "Carnegie Drag" lasted 3 minutes 15 seconds, and "Carnegie Jump" was 2 minutes 41 seconds. However, during the subsequent session on April 30, the two 12-inch recordings demonstrated greater length: "Embraceable You" extended to 4 minutes 05 seconds, and "Serenade to a Shylock" reached 4 minutes 32 seconds. An alternative method to circumvent the temporal constraint involved releasing a selection that spanned both sides of a single record. In 1922, vaudeville performers Gallagher and Shean recorded "Mr. Gallagher and Mr. Shean," a composition attributed to themselves or, purportedly, Bryan Foy, as a two-sided 10-inch 78 rpm record for Victor. More extensive musical compositions were subsequently issued as multi-record sets. In 1903, The Gramophone Company in England produced the inaugural complete operatic recording, Verdi's Ernani, distributed across 40 single-sided discs.
In 1940, Commodore Records issued Eddie Condon and his Band's rendition of "A Good Man Is Hard to Find" in four segments, distributed across both sides of two 12-inch 78 rpm records. The inherent temporal limitation of recordings endured from their inception until the advent of the LP record in 1948. Within popular music, the approximate 3+§34§⁄§56§-minute time constraint imposed by a 10-inch, 78 rpm record typically precluded vocalists from recording extended compositions. A notable exception is Frank Sinatra's recording of Rodgers and Hammerstein's "Soliloquy," from Carousel, produced on May 28, 1946. Given its duration of 7 minutes 57 seconds, which exceeded the capacity of both sides of a standard 78 rpm 10-inch record, it was released by Columbia's Masterwork label (their classical division) as a two-sided 12-inch record.
During the 78 rpm era, classical music and spoken-word content were typically issued on the larger 12-inch 78 rpm discs, offering approximately 4–5 minutes of playback per side. For instance, on June 10, 1924, four months subsequent to the February 12 premiere of Rhapsody in Blue, George Gershwin recorded an abridged rendition of the seventeen-minute composition alongside Paul Whiteman and His Orchestra. This recording was released on both sides of Victor 55225, with a total duration of 8 minutes 59 seconds.
Record Albums
Initially, "record albums" referred to booklets that housed collections of multiple disc records featuring related content, deriving their nomenclature from photograph or scrap albums. The German record company Odeon pioneered the album format in 1909 by releasing Tchaikovsky's Nutcracker Suite on four double-sided discs within a custom-designed package. It was not until the advent of the LP era that a complete album's worth of material could be contained on a single record.
78 rpm Releases in the Microgroove Era
In 1968, amidst a resurgence of Jazz Age music, influenced by the successful film Thoroughly Modern Millie, Reprise Records intended to launch a series of 78 rpm singles from its artists, designated as the Reprise Speed Series. However, only one disc was ultimately released: Randy Newman's "I Think It's Going to Rain Today," a track from his eponymous debut album, with "The Beehive State" featured on the B-side. Reprise subsequently discontinued the series, citing insufficient sales for the single and a general absence of interest in the concept.
In 1978, guitarist and vocalist Leon Redbone issued a promotional 78 rpm single comprising two tracks, "Alabama Jubilee" and "Please Don't Talk About Me When I'm Gone," both sourced from his Champagne Charlie album.
Similar to other Tin Pan Alley revivals, R. Crumb & His Cheap Suit Serenaders released several 78 rpm singles under their Blue Goose record label. Among these, the most recognized release is likely R. Crumb & His Cheap Suit Serenaders' Party Record (1980), which was issued as a "Red Goose" 12-inch single and featured the double-entendre track "My Girl's Pussy" on side A and the X-rated "Christopher Columbus" on side B.
During the 1990s, Rhino Records produced a collection of boxed sets containing 78 rpm reissues of early rock and roll successes, specifically targeting owners of vintage jukeboxes. However, these reissued records were manufactured from vinyl, whereas some older 78 rpm jukeboxes and record players (those predating World War II) were engineered with heavy tone arms designed for the rigid, slate-impregnated shellac records prevalent at that time. Consequently, the softer vinyl Rhino 78s were susceptible to damage from these older playback devices but performed optimally on contemporary 78-compatible turntables equipped with lightweight tone arms and jewel needles.
For Record Store Day in 2011, Capitol Records issued a special re-release of The Beach Boys' single "Good Vibrations" as a 10-inch 78 rpm record, with "Heroes and Villains" on the B-side. Subsequently, The Reverend Peyton's Big Damn Band launched their homage to blues guitarist Charley Patton, titled Peyton on Patton, available in both 12-inch LP and 10-inch 78 rpm formats.
Post-World War II Developments in Record Sizes and Materials
CBS Laboratories had been engaged in extensive research for Columbia Records, aiming to engineer a phonograph record capable of accommodating a minimum of 20 minutes of audio per side.
Initiated in 1939, this research was paused during World War II and recommenced in 1945. Columbia Records formally introduced the LP at a press conference held at the Waldorf-Astoria on June 21, 1948. The LP was presented in two distinct diameters: 10 inches (25 centimeters), which corresponded to the size of 78 rpm singles, and 12 inches (30 centimeters).
In February 1949, RCA Victor, declining to adopt and license Columbia's system, launched its inaugural 45 rpm single, characterized by a 7-inch diameter and a prominent center hole. The accompanying 45 rpm player incorporated a changing mechanism that facilitated the stacking of multiple discs, similar to how traditional changers managed 78s. Analogous to 78s, the limited playback duration of a single 45 rpm side necessitated the distribution of extensive compositions, such as symphonies and operas, across multiple 45s rather than a single LP. Nevertheless, RCA Victor asserted that its innovative high-speed changer minimized side breaks to an insignificant extent. Initial 45 rpm records were fabricated from either vinyl or polystyrene and offered an eight-minute playing time.
Initially, these two distinct systems were commercially promoted in direct competition, a period colloquially termed "The War of the Speeds".
Playback Speeds
The Shellac Era
The 78 rpm format, despite its age, continued to be mass-produced, albeit in diminishing quantities, alongside newer formats utilizing modern materials. This production persisted in the U.S. until the summer of 1958 and extended into the late 1960s in certain nations, including the Philippines and India, both of which released Beatles recordings on 78s. For instance, Columbia Records' final reissue of Frank Sinatra's songs on 78 rpm records was the album titled Young at Heart, released in November 1954.
The Microgroove and Vinyl Era
Both Columbia and RCA Victor conducted their respective research and development efforts with considerable secrecy.
The intense commercial competition between RCA Victor and Columbia Records culminated in RCA Victor's launch of the 7-inch (175 mm) 45 rpm vinyl disc, featuring a significantly larger center hole, which was conceived as a rival format. Between 1948 and 1950, a two-year period, both record manufacturers and consumers experienced considerable ambiguity regarding which format would ultimately dominate, a conflict famously dubbed the "War of the Speeds." By 1949, Capitol and Decca had embraced the new LP format, prompting RCA Victor to concede and release its first LP in January 1950. Concurrently, the 45 rpm format also experienced increasing popularity, leading Columbia to issue its initial 45s in February 1951. By 1954, sales of 45 rpm records had reached 200 million units.
Ultimately, the 12-inch (300 mm) 33+§34§⁄§56§ rpm LP emerged as the primary format for musical albums, leading to the discontinuation of 10-inch LP releases. Columbia Records' final reissue of Frank Sinatra's songs on a 10-inch LP was the album Hall of Fame, catalog number CL 2600, released on October 26, 1956. This album featured six tracks, with one contribution each from Tony Bennett, Rosemary Clooney, Johnnie Ray, Frank Sinatra, Doris Day, and Frankie Laine.
The 45 rpm discs were also produced in an extended play (EP) format, which offered playback durations of 10–15 minutes, achieved by attenuating and potentially compressing the audio to minimize groove width requirements. EP discs were more economical to manufacture and served purposes such as targeting niche markets with limited sales potential or reissuing LP album content in a compact format for users possessing only 45 rpm turntables. Consumers could acquire LP album content incrementally, with each EP containing four tracks, or as a complete boxed set comprising three EPs, totaling twelve tracks. The distinctive large center hole of 45 rpm records facilitated their operation within jukebox systems. By the late 1950s, the EP format largely ceased production in the U.S., coinciding with the widespread adoption of multi-speed (three- and four-speed) record players, which superseded single-speed 45 rpm units. A notable indicator of the 45 rpm EP's decline is the final Columbia Records reissue of Frank Sinatra's songs in this format, titled Frank Sinatra (Columbia B-2641), released on December 7, 1959.
The Seeburg Corporation launched the Seeburg Background Music System in 1959, which utilized a 9-inch record operating at 16+§34§⁄§56§ rpm and featuring a 2-inch center hole. These records provided 40 minutes of audio per side, characterized by a high groove density of 420 grooves per inch.
During the mid-1950s to the 1960s in the U.S., typical home record players, often referred to as "stereos" following the advent of stereo recording, commonly incorporated several key features: These included a multi-speed turntable supporting three or four rotational velocities (78, 45, 33+§34§⁄§56§, and occasionally 16+§1112§⁄§1314§ rpm). Additionally, a record changer mechanism featured a tall spindle capable of accommodating multiple records, automatically dropping a subsequent disc onto the platter once the preceding one concluded playback. A versatile cartridge integrated both 78 rpm and microgroove styli, allowing users to switch between them. Furthermore, an adapter was provided to facilitate the playback of 45 rpm records, which possessed a larger center hole. These adapters typically manifested as either a small, solid circular insert placed at the base of the spindle, enabling single 45 rpm record playback, or a larger unit designed to fit over the entire spindle, thereby allowing for sequential playback of multiple 45 rpm records.
RCA Victor 45 rpm records could also be adapted for use on LP players, which featured a smaller spindle, through the use of a plastic snap-in insert commonly termed a "45 rpm adapter." These adapters were commissioned by RCA president David Sarnoff and developed by Thomas Hutchison.
Capacitance Electronic Discs (CEDs), an RCA invention, were videodiscs that employed mechanically tracked ultra-microgrooves (9541 grooves per inch) on a 12-inch conductive vinyl substrate.
High fidelity
The designation "high fidelity" originated in the 1920s among certain manufacturers of radio receivers and phonographs, who utilized it to distinguish their superior-sounding products, which purported to offer "perfect" sound reproduction. This terminology subsequently gained traction among audio engineers and consumers throughout the 1930s and 1940s. Post-1949, numerous advancements in recording and playback technologies, particularly the widespread availability of stereo recordings by 1958, significantly bolstered the "hi-fi" product category. This surge led to increased sales of discrete home audio components, including amplifiers, loudspeakers, phonographs, and tape players. Magazines such as High Fidelity and Audio served as resources for hi-fi enthusiasts and engineers, providing reviews of playback equipment and recordings.
Stereophonic sound
A stereophonic phonograph system delivers two distinct audio channels, designated as left and right. This capability is realized by incorporating a vertical dimension of stylus movement, augmenting the conventional horizontal motion. Consequently, the stylus articulates both laterally and vertically. However, due to differing sensitivities to vibration across these two dimensions, equalization is necessary. This is accomplished by orienting the channels 45 degrees from the horizontal, allowing each channel to derive half of its information from each directional component.
Through the application of a 45-degree channel rotation and vector addition principles, it can be demonstrated that the resulting new horizontal and vertical directional components correspond to the sum and difference of the two audio channels, respectively. Manufacturers of phonograph records typically configure these directions such that the conventional horizontal modulation encodes the sum of the channels. Consequently, a standard monophonic disc is accurately interpreted as having "no difference between channels," and a monophonic player can reproduce the sum of a stereophonic recording with minimal information loss.
In 1957, the inaugural commercial stereo two-channel records were initially released by Audio Fidelity, followed by a translucent blue vinyl offering from Bel Canto Records. The latter notably included a multi-colored vinyl sampler that featured "A Stereo Tour of Los Angeles," narrated by Jack Wagner, on one side, with a compilation of tracks from various Bel Canto albums on the reverse.
Noise Reduction Systems
Another comparable system, targeting the high-end audiophile market and achieving a noise reduction of approximately 20 to 25 dB(A), was the Telefunken/Nakamichi High-Com II noise reduction system, adapted for vinyl in 1979. Although a decoder was commercially available, only a single demonstration record is documented to have been produced in this format.
Additional noise-reduction systems developed for vinyl records included dbx and CX.
Furthermore, the UC compander system represented another noise reduction solution for vinyl records, developed by Zentrum Wissenschaft und Technik (ZWT) of Kombinat Rundfunk und Fernsehen (RFT). This system deliberately reduced disk noise by 10 to 12 dB(A), designed to remain virtually free of discernible acoustical artifacts even during playback without an UC expander. Despite being undocumented, the system was introduced to the market by several East-German record labels starting in 1983. More than 500 UC-encoded titles were produced, yet no expander was made available to the public. The sole UC expander was integrated into a turntable produced by Phonotechnik Pirna/Zittau.
The production and availability of encoded discs in these formats ceased in the mid-1980s.
Formats
Types of Records
EP records typically feature spindle holes with a diameter of 0.286 inches (7.26 mm).
In both the United States and the United Kingdom, record dimensions are typically expressed in inches; for instance, 7-inch records commonly operate at 45 rpm. Initially, LPs were produced as 10-inch discs, though the 12-inch format rapidly emerged as the predominant standard. While 78 rpm records were generally 10 inches, variations including 12-inch, 7-inch, and even smaller formats, colloquially known as "little wonders," were also manufactured.
Standard Formats
- Notes:
Less Common Formats
Flexi discs, characterized by their thin and flexible nature, were distributed as inserts with magazines and as promotional items between the 1960s and the 1980s.
Concurrently with RCA Victor's introduction of the 45 rpm format in March 1949, Columbia launched several hundred 7-inch, 33+§34§⁄§56§ rpm singles featuring small spindle holes. This particular format was subsequently discontinued as the RCA Victor 45 rpm single and the Columbia 12-inch LP emerged as the preferred choices for singles and albums, respectively. The initial release of the 45 rpm record was distinguished by seven color variations, each corresponding to a specific musical genre: black (47-xxxx popular series), yellow (47-xxxx juvenile series), green/teal (48-xxxx country series), deep red (49-xxxx classical series), bright red/cerise (50-xxxx blues/spiritual series), light blue (51-xxxx international series), and dark blue (52-xxxx light classics). Due to production challenges, most of these colors were soon phased out in favor of black. Nevertheless, yellow and deep red continued to be produced until approximately 1952. The inaugural 45 rpm record produced for commercial sale was "PeeWee the Piccolo" (RCA Victor 47-0147), pressed in yellow translucent vinyl at the Sherman Avenue plant in Indianapolis on December 7, 1948, under the supervision of plant manager R. O. Price.
During the 1950s and 1960s, "Ribs" emerged in Soviet Union countries as a direct consequence of cultural censorship. These illicit recordings featured prohibited music, pressed onto scavenged x-ray films obtained from hospital waste.
During the 1970s, the Bhutanese government issued postage stamps that were also playable vinyl mini-discs, which have since become highly collectible.
Recent Developments
In 2018, the Austrian startup Rebeat Innovation GmbH secured US$4.8 million in funding to advance the development of high-definition vinyl records, which are claimed to offer extended playback durations, increased volume levels, and superior fidelity compared to traditional vinyl LPs. Rebeat Innovation, under the leadership of CEO Günter Loibl, has designated this format 'HD Vinyl'. The HD process involves converting audio into a digital 3D topographical map, which is subsequently inscribed onto the vinyl stamper using lasers, thereby minimizing information loss. However, numerous critics have voiced skepticism concerning the economic viability and audio quality of HD records.
In May 2019, during the Making Vinyl conference held in Berlin, Loibl introduced "Perfect Groove," a software designed for generating 3D topographic audio data files. This software functions as a blueprint for the laser-engraving process used in producing HD Vinyl stampers. The development of this audio engineering software involved collaboration with mastering engineers Scott Hull and Darcy Proper, a recipient of four Grammy Awards. The event featured initial simulations demonstrating the anticipated sound quality of HD Vinyl records, preceding their physical production. Loibl presented "Perfect Groove" in a session titled "Vinyl 4.0 The next generation of making records," followed by practical demonstrations for the attendees.
In 2025, Tiny Vinyl, based in Nashville, Tennessee, initiated a collaboration with Target for the retail distribution of 4-inch vinyl records, which were priced more affordably than standard full-size records. Nevertheless, Jesse Mann, a former AC Entertainment executive who partnered with toy industry executive Neil Kohler, acknowledged that the audio fidelity of these smaller records was compromised. These records had been manufactured for several years by GZ Media, also located in Nashville.
Structure
From the early 20th century onward, and almost universally since the 1920s, both surfaces of a record have been utilized for embedding audio grooves. Despite this convention, some records have occasionally been released with content recorded on only one side.
During the 1980s, Columbia Records briefly introduced a collection of more economical, single-sided 45 rpm singles.
Since their establishment in 1948, vinyl record manufacturing standards within the United States have adhered to the specifications set forth by the Recording Industry Association of America (RIAA).
Vinyl Weight
The playback stability of a vinyl record is considerably influenced by its material weight. Standard 12-inch (30 cm) 33 rpm LP records typically range from 80 to 200 grams, varying with material composition and thickness, though approximately 180 grams is generally regarded as optimal. For 7-inch (18 cm) 45 rpm singles, a weight of 50 grams is commonly preferred.
To enhance the stability of lighter records on a turntable, accessories such as record clamps or record weights can be employed. A record clamp secures the record by screwing down for a positive lock, while a record weight is a disc-shaped object that rests directly on the record's center spindle.
Vinyl Quality
The precise composition of vinyl utilized in record pressing, typically a blend of polyvinyl chloride and polyvinyl acetate, has undergone significant variations throughout history. While virgin vinyl is generally favored, the energy crisis of the 1970s prompted many manufacturers to reduce the thickness and overall quality of vinyl in mass production as a cost-saving measure. This reduction adversely affected sound quality, leading to a proliferation of ticks, pops, and other surface disturbances. RCA Records, for instance, promoted its lightweight LPs under the Dynaflex brand, a product widely perceived as inferior by numerous record collectors during that era.
The adoption of recycled vinyl became a widespread practice. Currently, new or "virgin" heavy/heavyweight vinyl (ranging from 180 to 220 grams) is frequently employed for contemporary audiophile releases across various musical genres. A significant number of collectors express a preference for heavyweight vinyl albums, which are often reported to deliver superior sound fidelity compared to standard vinyl due to their enhanced resistance to deformation resulting from regular playback.
Subsequent to the resurgence of vinyl in the 21st century, certain manufacturers have begun utilizing bioplastic-based records, driven by environmental concerns regarding the extensive use of polyvinyl chloride (PVC).
Limitations
Shellac
A significant limitation of shellac was the tendency for its discs to be larger, primarily because groove density was restricted to 80–100 grooves per inch (3.1–3.9 grooves/mm) to prevent groove collapse at higher densities. In contrast, vinyl could accommodate up to 260 grooves per inch (10 grooves/mm) while preserving the medium's structural integrity.
Vinyl
While vinyl records possess considerable strength and resistance to breakage, the material's inherent softness renders it susceptible to scratches that can severely degrade the record. Vinyl also readily accumulates a static charge, which attracts dust particles that are challenging to eliminate entirely. Both dust and scratches manifest as audible clicks and pops during audio playback. In severe instances, these imperfections can cause the stylus to skip across multiple grooves or to jump backward, resulting in a "locked groove" that produces repetitive audio. This phenomenon is the etymological source of the idioms "like a broken record" or "like a scratched record," which metaphorically describe persistent repetition by an individual or entity.
A significant limitation of the gramophone record is the degradation of fidelity as playback progresses. This phenomenon occurs because a greater length of vinyl per second is available for precise high-frequency reproduction at the larger-diameter beginning of the groove compared to the smaller diameters near the end of the side. Specifically, at the commencement of an LP groove, the stylus traverses 510 mm of vinyl per second, whereas this rate decreases to 200–210 mm per second by the groove's conclusion, representing less than half the initial linear resolution.
The comparative sound quality between compact disc (CD) and LP formats, particularly when the latter is evaluated under optimal conditions, remains a subject of ongoing debate. A notable technical advantage of vinyl is its potential for extended longevity; if handled and stored correctly, records can remain playable for decades, possibly centuries, a duration that may exceed the lifespan of certain optical CD versions. To ensure long-term playability, vinyl records require meticulous care and proper storage. Recommended guidelines for appropriate vinyl storage include avoiding stacking records, protecting them from heat or direct sunlight, and maintaining them in a temperature-controlled environment to prevent warping. Collectors commonly utilize various storage solutions, such as specialized boxes, cubes, shelves, and racks.
Audio Fidelity
Upon the introduction of the compact disc (CD) in 1982, the vinyl stereo LP continued to exhibit several inherent limitations:
The stereo image was not composed of entirely discrete left and right channels; each channel's signal output from the cartridge contained a minor component of the signal from the opposing channel, with crosstalk intensifying at higher frequencies. While high-quality disc cutting equipment could produce a master disc with 30–40 dB of stereo separation at 1,000 Hz, playback cartridges typically demonstrated inferior performance, achieving approximately 20–30 dB of separation at 1,000 Hz. This separation further diminished with increasing frequency, reaching only about 10–15 dB at 12 kHz. A prevalent modern perspective suggests that greater stereo isolation is requisite for establishing an accurate stereo soundstage. However, tests conducted by the BBC in the 1950s determined that 20–25 dB was sufficient to create the perception of full stereo separation.
The design of thin, closely spaced spiral grooves, which facilitates extended playing times on a 33+§34§⁄§56§ rpm microgroove LP, can lead to an audible pre-echo phenomenon preceding loud passages. This occurs because the cutting stylus inadvertently imprints a portion of the subsequent groove wall's impulse signal onto the preceding groove wall. While some listeners may detect this throughout specific recordings, it becomes particularly noticeable as a faint pre-echo, occurring approximately 1.8 seconds prior, when a quiet segment is immediately followed by a loud sound.
LP Versus CD Comparison
Since the introduction of the digital compact disc, audiophiles have maintained divergent opinions regarding the comparative merits of LPs and CDs. Theoretically, digital sampling possesses the capacity to fully replicate a sound wave across a specified frequency range, provided an adequate sampling rate is employed. Conversely, vinyl records present several disadvantages, including inherent surface noise, reduced resolution attributable to a narrower dynamic range, and heightened susceptibility to handling damage. However, advancements in digital recording, such as contemporary anti-aliasing filters and oversampling systems, have effectively mitigated issues perceived in early CD player designs.
A theoretical assertion posits that vinyl records are capable of audibly representing higher frequencies than compact discs, although a significant portion of this output constitutes noise largely irrelevant to human auditory perception. According to Red Book specifications, compact discs exhibit a frequency response ranging from 20 Hz to 22,050 Hz, with most CD players demonstrating a flat response, within a fraction of a decibel, from at least 0 Hz to 20 kHz at full output. Conversely, the inherent spacing requirements between grooves preclude LPs from reproducing frequencies as low as those achievable by CDs. While turntable rumble and acoustic feedback tend to obscure the low-frequency limit of vinyl, its upper-frequency response, when utilizing certain cartridges, can remain reasonably flat within a few decibels up to 30 kHz, followed by a gradual roll-off. Notably, carrier signals for Quad LPs, prevalent in the 1970s, were positioned at 30 kHz to remain beyond the typical range of human hearing. The average human auditory system is sensitive to frequencies spanning approximately 20 Hz to 20,000 Hz, though these upper and lower limits exhibit individual variability. Furthermore, high-frequency sensitivity diminishes with age, a condition known as presbycusis.
Preservation
Gramophone records undergo gradual degradation with each playback, necessitating their preservation through transfer to alternative media and minimal physical interaction. Optimal preservation requires vertical storage and environmental conditions conducive to human comfort. The longevity and performance of vinyl records can be enhanced through specific accessories and cleaning regimens. Slipmats, for instance, offer a soft, cushioned interface between the record and the turntable platter, thereby mitigating friction and potential damage to the vinyl surface.
For older disc recordings deemed to possess artistic or historical significance, particularly those predating the tape era or lacking a tape master, archivists employ specialized equipment to play back the disc and record the output, typically into a digital format. This digital rendition can then be processed to mitigate analog imperfections without inflicting further damage on the original source recording. For example, Nimbus Records utilizes a custom-built horn record player for transferring 78 rpm discs. To ensure accurate transfer, professional archivists meticulously select the appropriate stylus shape and diameter, tracking weight, equalization curve, and other playback parameters, in conjunction with high-quality analog-to-digital converters.
As an alternative to stylus-based playback, a record can be optically scanned and subsequently processed with software to compute an equivalent stylus velocity, facilitating conversion to a digital format. This technique occasionally enables the reconstruction of broken or otherwise compromised discs.
Popularity and Current Status
Groove recordings, initially developed in the final quarter of the 19th century, maintained a predominant market position for nearly a century, successfully resisting competition from formats such as reel-to-reel tape, the 8-track cartridge, and the compact cassette. However, the widespread adoption of Sony's Walkman contributed to a decline in vinyl's usage during the 1980s.
By 1988, the compact disc had surpassed the gramophone record in unit sales. Vinyl records experienced a precipitous decline in popularity between 1988 and 1991, primarily due to major label distributors restricting their return policies, upon which retailers had previously relied to manage and exchange inventories of less popular titles. Initially, distributors imposed higher charges on retailers for new products if unsold vinyl was returned; subsequently, they ceased offering any credit for returns. Consequently, retailers, apprehensive of being burdened with unsold stock, limited their orders to only proven, popular titles and allocated increased shelf space to CDs and cassettes. Concurrently, record companies withdrew numerous vinyl titles from production and distribution, further undermining the format's availability and leading to the closure of pressing plants. This rapid reduction in record availability accelerated the format's decline in popularity, a phenomenon some interpret as a deliberate strategy to compel consumers to transition to CDs, which, unlike today, offered greater profitability for record companies.
The more contemporary CD format offered several inherent advantages over records, including enhanced portability, digital audio quality, the elimination of background hiss and surface noise, instant track switching and searching, extended playing time, absence of continuous degradation (a characteristic of most analog formats that wear out with playback), programmability (e.g., shuffle, repeat), and compatibility with personal computers for playback and copying. Despite these perceived flaws, records retained enthusiastic proponents, partly attributable to a preference for their "warmer" sonic characteristics and larger sleeve artwork. Furthermore, records remained the preferred format for disc jockeys in dance clubs throughout the 1990s and 2000s due to their superior mixing capabilities.
Revival Era
A niche resurgence of vinyl records commenced in the late 2000s, primarily among rock enthusiasts. A 2011 study by the Entertainment Retailers Association in the United Kingdom revealed that consumers were willing to pay an average of £16.30 (€19.37, US$25.81) for a single vinyl record, in contrast to £7.82 (€9.30, US$12.38) for a CD and £6.80 (€8.09, US$10.76) for a digital download. This resurgence gained momentum throughout the 2010s, reaching $416 million in U.S. revenue by 2015, marking its highest level since 1988. As of 2017, vinyl accounted for 14% of all physical album sales. According to the RIAA's midyear report in 2020, phonograph record revenues surpassed those of CDs for the first time since the 1980s.
In 2021, Taylor Swift's ninth studio album, Evermore, achieved a record-breaking 102,000 vinyl sales within a single week. This figure surpassed the highest weekly vinyl sales recorded since Nielsen commenced tracking in 1991. The previous record was established in 2014 by Jack White, whose second solo album, Lazaretto, sold 40,000 vinyl copies during its debut week.
As of 2021, global pressing plants collectively produce an estimated 180 million LP records annually.
Current Production Capacity
By 2017, 48 record pressing facilities operated globally. The resurgence in vinyl's popularity has spurred investments in advanced and contemporary record-pressing machinery. At that time, only two manufacturers of lacquer master discs persisted: Apollo Masters, located in California, and MDC, based in Japan. As of 2015, Apollo Masters' future viability was reportedly uncertain. In 2016, Hand Drawn Pressing commenced operations as the world's inaugural fully automated record pressing plant.
Niche Recording Formats
VinylVideo
VinylVideo represents a format designed to store low-resolution black and white video content on a vinyl record, concurrently with encoded audio.
Capacitance Electronic Disc
The Capacitance Electronic Disc serves as another illustration, offering a color video format that marginally surpassed VHS in quality.
Album Cover
- Album cover
- Apollo Masters Corporation Fire
- Capacitance Electronic Disc
- Conservation and Restoration of Vinyl Discs
- Electrical Transcription
- LP Record
- The New Face of Vinyl: Youth's Digital Devolution (Photo Documentary)
- Phonograph Cylinder
- Pocket Disc
- Record Store Day
- Sound Recording and Reproduction
- Uncommon Gramophone Record Types
References
- An explanation of vinyl record functionality.
- Playback equalization for 78 rpm shellac records and early LPs, including EQ curves and an index of record labels, available on the Audacity Wiki.
- A 1942 educational video detailing the manufacturing and production processes of shellac records.
- Information on the reproduction of 78 rpm records, encompassing equalization data for various manufacturers of 78s and LPs.
- The Secret Society of Lathe Trolls, a resource dedicated to comprehensive aspects of gramophone record production.
- A tutorial from Audacity on the digitization of gramophone records.
- A comprehensive list of vinyl pressing plants.
- The Musée des ondes Emile Berliner in Montreal, Canada, serves as a dedicated museum for sound history.
- Smart Vinyl: The First Computerized System
- Semi-Automatic Metadata Extraction from Shellac and Vinyl Discs
- Vinyl Player 2.0