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Topic: Wavetable synthesis

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	Types of Synthesis - The Sonic Spot
		RM synthesis is used by Vocoders which are often used to effect a human voice's sound signal to create a "robotic" sounding variation.
		Wavetable Synthesis is carried out by simply playing segments of digital audio to produce a realistic instrument or synthetic sound.
		Wavetable synthesis in the form of envelopes and modulators are often combined with AM synthesis to add some variation to otherwise repetitive sounding output.
	www.sonicspot.com /guide/synthesistypes.html (983 words)

	Wavetable synthesis - Wikipedia, the free encyclopedia
		Upon playback, these wavetables are used for sample "lookup" in the same manner as in a Numerically-controlled oscillator (or a Digitally controlled oscillator) but in wavetable synthesis, the output waveform is not normally static and evolves slowly in time as one wavetable is mixed with another, creating a changing waveform.
		A common misdefinition of the term "wavetable synthesis" is that of any one of many sample based playback devices in popular soundcards and sampling keyboards.
		The difference between straight-through sample playback and wavetable synthesis as defined here is that the wave is not kept as a single PCM recording, but as a series of single-cycle waves (or, on later equipment like the Roland D-50, very short PCM samples) that can be played in any order or even omitted.
	en.wikipedia.org /wiki/Wavetable_synthesis (858 words)

	Sonic Network MIDI Synthesis
		Wavetable based MIDI synthesis is at its simplest the playback of digitally recorded instrument samples to emulate the sound of real musical instruments.
		The other main component of an audio synthesis solution, not often associated with the synthesizer itself is a MIDI parser or player.
		Its parameters are specified in the Articulation section of the wavetable being utilized.
	www.sonicnetworkinc.com /wavetablesynthesis.htm (945 words)

	Wavetable synthesis -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-24)
		Wavetable synthesis is used in digital (Any of various devices or contrivances that can be used to produce musical tones or sounds) musical instruments (((music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments) synthesizers) to produce natural tone-like sounds.
		Special effects can be achieved by selecting a wavetable at random or in a special pattern from the table on a tempo-tick from a ((chemistry) an apparatus that can determine the sequence of monomers in a polymer) sequencer.
		A common misdefinition of the term "wavetable synthesis" is that of any one of many sample based playback devices in popular (Click link for more info and facts about soundcards) soundcards and (Click link for more info and facts about sampling keyboards) sampling keyboards.
	www.absoluteastronomy.com /encyclopedia/w/wa/wavetable_synthesis.htm (819 words)

	My Humble Home - MIDI info page
		Wavetable synthesis is the second method, and is much, much better than FM synthesis.
		Wavetable synthesis works by recording a sound sample of one note (or occasionally a few different notes) from the actual instrument, which is stored (in PCM) in the wavetable's memory.
		If you where listening to a sound reproduced by FM synthesis you might ask, "Was that suppose to be a violin?" While with that same sound reproduced by wavetable synthesis you might ask, "Was that a Stradivarius violin?".
	www.lionking.org /~bornfree/soundroom/midi.html (1229 words)

	The Wavetable Oscillator
		Wavetable oscillators are often used to synthesize sounds with specified, static spectra.
		While direct additive synthesis of complex waveforms, as shown in Chapter 1, is in principle infinitely flexible as a technique for producing time-varying timbres, wavetable synthesis is much less expensive in terms of computation but requires switching wavetables to change the timbre.
		When using this technique to cross-fade between wavetable oscillators, it might be desirable to keep the phases of corresponding partials the same across the wavetables, so that their amplitudes combine additively when they are mixed.
	www.crca.ucsd.edu /~msp/techniques/latest/book-html/node27.html (489 words)

	Microtonal Synthesis Terms and Definitions (Site not responding. Last check: 2007-10-24)
		Be forewarned that many wavetable based synthesizers do not remap the samples properly when the retuned note is out of the sample range of the original sample pitch.
		Usually the synthesis is some form of wavetable synthesis, but physical modeling and other variations are possible.
		Synthesis is normally accomplished through wavetables and more limited in user adjustment than synthesizers.
	www.microtonal-synthesis.com /terms.html (1921 words)

	[No title]
		Wavetable synthesis addons for computers are slightly more recent and the same hardware companies that have been the major manufacturers of electronic music keyboards for musicians: Roland, Yamaha, Ensoniq and Emu, have been major players (along with new entries such as Turtle Beach).
		Turtle Beach originally used wavetable technology from Emu, until shortly after the latter was acquired by Creative Labs, a Singapore based PC card manufacturer best known for its SoundBlaster soundcards, as Creative added wavetable capabilities to some of their cards.
		More recently, they have introduced external wavetable modules, wavetable chip sets, and very recently their own wavetable cards and "daughterboards", designed to mount on the side of pc sound cards which have the right connector.
	www.duluth.umn.edu /~dcole/synthrev.htm (3104 words)

	ipedia.com: Frequency modulation synthesis Article (Site not responding. Last check: 2007-10-24)
		Frequency modulation synthesis (or FM synthesis) is a form of audio synthesis where the timbre of a simple waveform is changed by frequency modulating it with a modulating frequency that is also in the audio range, resulting in a more complex waveform and a different-sounding tone.
		As a result, FM synthesis was the basis of some of the early generations of digital synthesizers from Yamaha, with Yamaha's flagship DX-7 synthesizer being ubiquitous throughout the 1980s.
		With the expiration of the Stanford University FM patent in 1995, FM synthesis is now part of the synthesis repertoire of most modern synthesizers, usually in conjunction with additive, subtractive and sometimes sampling techniques.
	www.ipedia.com /frequency_modulation_synthesis.html (419 words)

	Physical Modeling Synthesis (Site not responding. Last check: 2007-10-24)
		The most costly part of a wavetable synth still is its ROM (the main reason why you only get a few high-quality patches on a digital piano).
		Wavetable gives you a very good sound quality when you play one of the recorded waves back.
		Wavetable synthesis is still the best way to go (without tons of money) for all percussion or piano-like instruments.
	www.esat.kuleuven.ac.be /~nackaert/iwsa.html (1124 words)

	Advanced Sound-Synthesis in OSW
		In wavetable synthesis, a small waveform is stored in a table, which in OSW can be either a Table or SampleBuffer, and treated as a single period of a repeating waveform.
		In the context of wavetable synthesis, frequency-modulation can be seen as the application of a modulator to a phasor, as illustrated in the FM tutorial patch.
		Granular synthesis is an alternative to additive synthesis that is based on a theory developed by Gabor [Roads 1988].
	osw.sourceforge.net /manual/advanced.html (2572 words)

	VOGONS :: View topic - Okay, what exactly is LA synthesis?
		LA Synthesis is half analogue synthesis (subtractive synthesis using sawtooth and square waves) and half PCM synthesis.
		Wavetable synthesis normally has multiple frequency samples of an instrument's attack, loop and decay.
		FM synthesis is considered additive synthesis where waveforms (operators) are added together to make a complex, rich sound.
	vogons.zetafleet.com /viewtopic.php?t=3901 (495 words)

	wavetable from FOLDOC (Site not responding. Last check: 2007-10-24)
		A recorded wavetable sound may be edited and enhanced by various effects (reverb, chorus) and layered with other waveforms before writing it to ROM or RAM.
		A wavetable generator is typically controlled by MIDI input.
		The more realistic wavetable sounds have all but replaced the earlier synthetic FM (frequency modulation) sound generation in sound cards but to ensure compatibility with older games etc., an FM part is usually included.
	www.instantweb.com /foldoc/foldoc.cgi?wavetable+synthesis (222 words)

	A Tutorial on MIDI and Wavetable Music Synthesis
		Digital sample-based synthesis systems may employ a variety of special techniques, such as sample looping, pitch shifting, mathematical interpolation, and polyphonic digital filtering, in order to reduce the amount of memory required to store the sound samples (or to get more types of sounds from a given amount of memory).
		These sample-based synthesis systems are often called "wavetable" synthesizers (the sample memory in these systems contains a large number of sampled sound segments, and can be thought of as a "table" of sound waveforms which may be looked up and utilized when needed).
		Wavetable Synthesis Techniques Looping and Envelope Generation One of the primary techniques used in wavetable synthesizers to conserve sample memory space is the looping of sampled sound segments.
	cara.gsu.edu /courses/MIDI/waveart.html (10588 words)

	DMX512.com - Wavetable Sythesis Based Sound Effects (Site not responding. Last check: 2007-10-24)
		Wavetable Synthesis is good because of the digital playback of digital samples.
		However the real neat thing about Wavetable Synthesis is that the soundcard has the ability to "loop" a short sample, hence making a long running sample.
		Many of the earlier wavetable soundcards had memory on the card that was dedicated for holding the loaded samples, and there was usually only a small amount of this memory present, or on some cards, no user writable memory at all (ie all the samples were held in ROM).
	www.dmx512.com /web/audio/sblive (1237 words)

	Generations of Musical Synthesis
		Analog synthesis has a sound that is often described as "fat" or "warm." It's main disadvantage is that because available analog waveforms tend to be simple, while the sounds they are simulating tend to be complex, it takes a lot of analog circuitry to accurately mimic sounds, especially during transients like key strikes.
		Wavetable sythesis takes a similar approach, but tends to use the sampled instrument as more of a starting point, mixing several timbres together, or cross-fading one sound into another.
		FM synthesis is based on the fact that when a frequency is modulated by another frequency, the result contains elements of both frequencies, plus new harmonics that are related to the mathematical relationship between the original frequencies.
	music.ashbysolutions.com /modsynth/generatn.html (838 words)

	Karplus-Strong Plucked-String Synthesis Algorithm or How To Create String Instruments Out Of Noise (Site not responding. Last check: 2007-10-24)
		In wavetable synthesis, a buffer is fill with samples that are then read by a pointer that circulate from the beginning of the table to the end and back to the beginning, thus creating a periodic sound.
		Wavetable synthesis is very simple but unfortunately also very dull because the sound doesn't present any variation over time.
		Most synthesis techniques remedy to this situation by modifying the sound after it is read from the wavetable.
	www.music.mcgill.ca /~amburns/physique/original.html (187 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		Synthesis is one of the more misunderstood aspects of modern music technology.
		Subtractive synthesis works by taking a source that is rich in harmonics, such as a 'sawtooth', square or pulse wave and selectively attenuating or removing these harmonics to obtain the desired timbre.
		Wavetable synthesis use digital tables of sounds, frequently sampled, to provide the initial source, usually for subtractive synthesis.
	www.ronlebar.com /synthesi.htm (2933 words)

	PC Sound Update
		Sure, many better sound cards still have 2-op FM synthesis onboard (to remain compatible with SB specs), but the name of the game today is 'wavetable synthesis'.
		Also, wavetable synthesis cards have become much more affordable in the past year with mass-production of the key processor chips.
		Wavetable cards have become much more affordable in the past year with the mass-production of low-cost synthesizer chips.
	www.monitor.ca /monitor/issues/vol2iss7/feature1.html (1607 words)

	poll: what, exactly, is "Wavetable Synthesis" (Site not responding. Last check: 2007-10-24)
		In one extreme limit, "wavetables" > could just be grains triggered in a granular synthesis method, but i would call this "granular synthesis" or perhaps "wavelet synthesis" but not "wavetable synthesis".
		granular synthesis is "better" (more powerful) but more expensive than wavetable synthesis, especially when the number of possibly overlapping grains is large.
		Andrew Horner did research in using genetic algorithms to reduce the data set (number of wavetables) but, like the Prophet VS, he mixes more than two wavetables at a time (so it's likely that none of the wavetables stored in memory match the sound at any one time) which increases real-time computation.
	shoko.calarts.edu /pipermail/music-dsp/1997-July/019636.html (651 words)

	Project 1: Wavetable Synthesis
		Wavetable synthesis uses short audio recordings consisting of one or a few waveforms of a sound.
		Many wavetable synthesizers will have a wave for the attack, then a wave that will be repeated for the sustain.
		In all cases for a wavetable synthesis component you will need to be able to fade the sound at the end over several milliseconds to avoid a "pop".
	www.cse.msu.edu /~cse471/p1wave.html (670 words)

	[No title]
		Wavetable synthesis addons for computers are slightly more recent and the same hardware companies that have been the major manufacturers of electronic music keyboards for musicians: Roland, Yamaha, Ensoniq and Emu, have been major players (along with new entries such as Turtle Beach).
		Turtle Beach originally used wavetable technology from Emu, until shortly after the latter was acquired by Creative Labs, a Singapore based PC card manufacturer best known for its SoundBlaster soundcards, as Creative added wavetable capabilities to some of their cards.
		More recently, they have introduced external wavetable modules, wavetable chip sets, and very recently their own wavetable cards and "daughterboards", designed to mount on the side of pc sound cards which have the right connector.
	www.d.umn.edu /~dcole/synthrev.htm (3104 words)

	The MusicKit MKSynthPatch Subclasses
		The delay memory is looped and filtered, causing the initial noise burst to gradually become more harmonic as the spectral energy subsides towards the fundamental, emulating the strike-and-fade characteristics of a real plucked string.
		Wavetable synthesis is a technique in which a length of memory is filled with one or more periods of a waveform; the memory is then looped during playback to produce a continuous signal.
		While wavetable synthesis is extremely easy to use―no messy formulas are needed to create a musical timbre―it's somewhat limited to the extent that you don't have control over the individual elements that create the timbre (which you do with techniques such as frequency modulation).
	musickit.sourceforge.net /MusicKitConcepts/themusickitmksynthpatchsubclasses.html (464 words)

	Sound, synthesis and audio reproduction: Sound synthesis
		Synthesis products are invariably used by people with little technical background and even with such knowledge, people lack interest in tinkering with obscure settings for hours to produce the instrument they want.
		Traditional wavetables still crop up, however, but not in the context of sampling synthesis—namely, they are used in additive and subtractive synths to provide the basic waveforms.
		When implementing wavetable playback, one needs to start with a sampled sound and play it at a different speed, but still result in a data stream that is constant in rate.
	www.helsinki.fi /~ssyreeni/dsound/dsound-c-07 (11269 words)

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