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College Work: Digital Audio & Synthesis: The History of the Sampler

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News: 15.03.02

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The History and Development
of the Sampler
Research Essay
Digital Audio Unit

Kieran McAtamney-Sanders
Rose Bruford College
Sound & Image Design BA (Hons), Year 2

Brief:

Research the history and development of the Sampler.
Discuss within the report the following areas:

  • The beginnings of the sampler, including a history of the significant progressions up to the Akai S1100.
  • The AD\DA conversion systems typically found in samplers.

Conclude with vision to the future of sampling systems

Deliverables:

An essay of 1500 to 2000 words.

Chapter 1: Introduction

The Sampler is an increasingly important tool for the modern music-maker, with developments in technology rendering it increasingly powerful. It is thus important to understand not only the current state of Sampler technology (which is almost entirely digital and increasingly computer based), but the original technologies which led to this point, and which, to a large extent current samplers still attempt to mimic in their operation. It will also be necessary to delve somewhat into the realms of sound synthesis, as there is a degree of common ground between the Synth and the Sampler. Indeed, the modern “sample based” Synthesizer is essentially a Sampler without the ability to record new samples.

In order to investigate their beginnings, It is necessary to define what is meant by a Sampler; A piece of equipment which plays back a pre-recorded audio clip (or “sample”) on demand, commonly at the press of a key on a keyboard. This definition is particularly important since the name “sampler” is also used to denote a component in the Analogue to Digital conversion process. To avoid confusion, I will refer in this essay to the former as a Sampler (capitalized) and the latter as a sampler.

Chapter 2: Sampler History

In the loosest sense of the word, a sampler is defined as any piece of equipment which can Record, Store and Replay a sound. Thus, the first recording device (Thomas Edison’s Phonograph, 1877) can also be said to be the first Sampler. This rather open definition also includes such equipment as the Tape recorder, Mini-Disc, DAT tape and a myriad of other devices. It is more appropriate, therefore to restrict our definition to the more common usage of the term; a device designed to record, store and replay sounds on demand as part of the recording/performance process.

One spur for the development of sampler technology was the development of music based on “Real-World” sounds, dubbed “Musique Concrete” by Schaeffer in 1948. However, at this time the only method for creating such music was by manual editing and tape splicing. An early instance of a live performance making use of pre-recorded material as an intrinsic part of the composition was Mauricio Kagel’s “Transicion II” , and involved two pianists, and two tape recorder operators who played a combination of pre-recorded material and material recorded during the concert itself.

Among the earliest “true” samplers was the Mellotron. This was a tape-based system, with each key press activating a short section of tape for playback. Recording new samples, however, was not an easy task, since each key required a separate recorded tape.
“Recording user Samples for such a machine requires time, patience and attention to detail… Because of the difficulty of recording your own sounds onto a tape, these tape samplers can almost be regarded as being sample replay instruments rather than true samplers.”

The early Samplers were of limited flexibility, as described above, due to their analogue nature - they were dependant on physical tape playback, which not only made importing / creating new samples laborious, but also sorely limited the flexibility of the user as to what they could do with the samples once they were loaded. Even such seemingly simple tasks as looping a sample became difficult, since each keystroke started a separate tape, created great difficulty in synchronising start-points. The possible length of samples was also limited by the difficulties associated with storing and playing lengthy tape loops without tangling them.

All this was to change with the advent of Digital technology in the music industry - The introduction of RAM storage removed the limitations on sample looping (which has since become one of the most useful features of the Sampler to the modern musician), since Random Access means that a sample can be started at any point in the recording, and re-started almost instantaneously. Digital Sampler, however, did not so quickly remove the limitations on the length of samples,, since the cost of RAM remained high for some time. Even today, most samplers are still limited to an average of 16MB of ram (around 96 seconds of samples in total).

The first commercial Digital Sampler was the Fairlight Computer Music Instrument (CMI), released in 1979. The Fairlight began life as the QUASAR M8 in 1978, and was designed by Australian engineers Peter Vogel and Kim Ryrie. The Fairlight was limited to 32k of memory, and 16khz, 8-bit sampling. Despite these seemingly meagre specifications, the Fairlight was a revolutionary piece of machinery, demonstrating for the first time the full range of possibilities offered by samplers, as well as including sequencing and synthesis capabilities.
“I was amazed at how rough that cello sample sounded. But, the fact remains that it is still unmistakably a cello rather than a synthesised copy, and that's what made the Fairlight so desirable. It sounded like a bad recording, rather than a good imitation.”

The Fairlight was followed by the first wholly dedicated Digital Sampler in 1981, the Emulator from E-Mu Systems. Both were, by today’s standards, extremely basic, but were embraced by artists such as Peter Gabriel and Kate Bush, and used to great effect. One of the major limitations of this “First Generation” of Digital Samplers was the lack of significant multisampling (mapping different samples to different keys), as well as their tiny memory capacities, which limited the length of samples severely. This was improved on greatly in 1984 by the Emulator II, which had 512kb of memory, allowing for far longer samples.

In 1985 the company which has since come to dominate the Sampler market made its first foray into the area; The AKAI S612. This was capable of 12-bit sampling at any rate from 4khz to 32khz. At the lowest sample rate it allowed 8 seconds of samples to be stored. The S612 was also among the first samplers to make use of the new MIDI system, allowing the sampler to be separated from the keyboard. It also included filtering, allowing the user to tailor samples once they had been recorded. In the next few years, Sampler memories continued to grow, until, in 1990 the AKAI S1100, which had 2MB upgradeable to 32MB. With this increased memory, the S1100 was capable of CD-Quality samples. The S1100 was also the first commercially available Sampler with an internal hard disk.

Since the S1100, the advances in samplers have been in their audio processing capabilities, up to today’s samplers, which include a large range of digital effects, and software compatibility allowing samples t be edited on the computer and then quickly and easily imported to the sampler.

Chapter 3: Possible Futures

From its origins in the analogue world the Sampler has, along with much of the paraphernalia of the recording studio, become an increasingly Digital animal. This has led to a vast increase in the quantity of samples that can be held in a single machine. It is now common, at least in the more professionally created sample sets for a single keystroke to activate one of a range of samples depending on, among other things, the speed and pressure with which the key is pressed.

Increasingly, software is becoming available which provides a direct interface between the Personal Computer and the Hardware Sampler. This not only puts a more flexible front-end on the “little grey box”, but allows easy access to the myriad hard disk editing packages available to fine-tune samples.

This development is in turn set to be overshadowed by the rapidly increasing possibilities offered by Software only Samplers. With the advent of Software Samplers, it is likely that this variety and quantity of samples available simultaneously will continue to grow, and one can easily envisage a time when the Software Sampler, limited only by available hard drive space, will have a library of hundreds of thousands, even millions of samples all available at a few milliseconds notice.

The possibility of longer and greater quality samples may also serve to shake the Sampler out of its current niche as a mere playback device for pilfered drum loops. It is to be hoped that as the technology becomes more flexible so will more of its users; the Sampler is an immensely powerful and versatile tool for both the recording and live artist, and, when used to its full potential can achieve astounding results. It is therefore a pity that a large proportion of musicians still see it as a glorified drum machine, and one can only hope that this will change as the technology continues to mature.

Bibliography:

Books:

Bartlett, B & J; 1998; Practical recording Techniques, Second Edition; Focal Press; UK

Russ, M; 1996; Sound Synthesis & Sampling; Focal Press; UK

Watkinson, J; 1994; An Introduction to Digital Audio; Focal Press; UK

Internet Resources:

A History of Sampling, Website, accessed 13th October, Available at
http://www.fortunecity.com/emachines/e11/86/synth7.html

AKAI Professional Audio Products, Website, accessed 13th October, Available at http://www.akaipro.com/

Dartmouth University, Website, accessed 13th October, Available at
http://music.dartmouth.edu/~wowem/electronmedia/music/eamhistory.html

E-Mu / ENSONIQ, Website, accessed 13th October, Available at
http://www.emu.com/

Obsolete.com, Website, accessed 13th October, Available at
http://www.obsolete.com/120_years/

Acknowledgements:

Thanks to Dane Ramshaw for the loan of his books, and collection of URL’s to get me headed in the right direction.