Waldorf Wave

Analogue/Digital Dynamic Spectrum Wave Table Synthesizer

Published in SOS July 1994
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Reviews : Keyboard

Waldorf's dream machine is finally off the drawing board and in the real world, and looks sure to set synth players' hearts beating a little faster. In this exclusive review, DAVID CROMBIE reveals why he's falling in love again...

 

For those of you new to the Wave story, there was once a company in Germany called PPG, who were so far ahead of the game that few people understood what they were doing. PPG were probably the first company to develop a commercial hard disk recording system that semi-worked. However their big claim to fame was the PPG Wave 2.2, and the subsequent Wave 2.3. The Wave 2.2 appeared around 1982/3 and was the answer to those who weren't too impressed by the way synthesizers were going -- i.e. digital.

The Wave 2.2 and 2.3 utilised digital oscillators to generate sound, but processed it using analogue filters, which gave the instruments more guts. The Waves were pretty big news in Europe -- especially, of course, in Germany. With cute-sounding Japanese synthesizers becoming the order of the day, the analogue/digital hybrid was one of the ways in which specialist synthesizer manufacturers could carve out a niche for themselves. Bands like Ultravox employed PPGs for a big sound, to distinguish themselves from the new pop synth bands of the day, who were busy using the presets on their digital synths.

PPG, alas, went west (and we're not talking travel), and from the ashes arose Waldorf Electronics. Waldorf has been closely involved with Steinberg for many years helping in the design and manufacture of some of their hardware.

In 1989 Waldorf released the Microwave; they took the PPG Wave concept and redesigned and repackaged it into a handy 2U rack. Although 'Microwave' was a catchy name, I felt that having the 'Micro-' diminutive was like saying "here's a cut-down version of the old Wave 2s". In fact, the Microwave was in many ways more than a Wave -- it was a whole lot more reliable, that's for sure.

The Microwave was/is successful enough, however, for Waldorf to invest in producing the new Wave, which really is something... to see, to hear, to play... to lift.

THE WAVE PHILOSOPHY

Imagine you are a synthesizer designer; you have a brief to design an instrument that people will want to pay an inordinately large amount of money for: what do you do? Waldorf realised that if you are going to build a top-flight instrument it needs to have a great sound, and you need to be able to program it with relative ease. With this kind of a price tag, the Wave seems to be aimed at the studio owner, the hire company and the richer musician, most of whom have grown up with the analogue way of constructing sound; Waldorf have therefore constructed the Wave so that it will seem pretty familiar to the Prophet 5 generation. In addition, they've tried to move away from the 'Data Entry' method of programming to a system that provides as many active knobs and switches as possible, for ease of use.

The Wave is a 16-voice polyphonic, 8-part multitimbral synthesizer that has an excellent and highly intuitive user interface. It's a digital/analogue hybrid with analogue filtering, to give that powerful, rich quality, and it has Dynamic Spectral Wavetable Synthesis for creating its own unique sounds. (Unique is an over-used word when it comes to synthesizers, but here it is justified.) Add to all this a comprehensive range of true master keyboard functions -- and you've scratched the Wave's surface. But perhaps more importantly... there's no drum samples and no on-board effects.

PHYSICAL APPEARANCE

The Wave is one impressive-looking piece of hardware. Walking around this year's Frankfurt Music Fair, I came across the Waldorf/TSI stand and there was the Wave. And although the stand wasn't the last bastion of hi-tech design, like those of the Yamahas and Rolands of this world, the Wave leapt out to grab the attention of every passer-by strolling down that aisle. I hung around the stand for a few moments watching peoples' reactions when they saw the Wave for the first time. Those who were obviously into synths would stop, their jaws would drop (metaphorically) and then a smile would creep across their faces. I was just the same.

It's a large, heavy instrument -- so much so that I was loath to trust it to my 'scissor' keyboard stand. The casework, however, is very nicely styled, with lacquered wooden end cheeks sandwiching a metallic chassis, onto which are attached grey vacuum-formed panels. The main control panel is hinged, so that it can tilt up for ease of access and viewing. This panel is big -- the width of the instrument, and over 12 inches deep -- and it's heavy, so much so that the mechanism for tilting requires the use of two shock absorbers. As the manual states, "don't be afraid to use your muscles." Mine hadn't recovered from carrying it up the stairs and getting it out of the box. It's funny that the last time we saw a tilting panel such as this was on one of the very early synthesizers, the Minimoog, some 25 years ago.

The overall look of the instrument is good. Located in its centre is a large, square, grey panel which houses the display section, the main element of which is a large, 680 x 64 pixel (225 x 35mm) back-lit LCD display, used in conjunction with the eight display faders and eight display buttons to select and edit key voice functions (more later), and claimed by Waldorf to be "the largest display implemented in a musical instrument to date." It's a little difficult to read in anything but fairly low ambient lighting, but Waldorf say they are going to fix this.

The actual location of all the controls is similar to that of the old analogue instruments and maps out the basic signal path. All the Oscillator waveform/wavetable, pitch and modulation controls are to be found on the left-hand side of the display panel, the Sound Generator section. On the right of the central display panel is the Sound Modification section, where you'll find modules that change the actual character of the sound -- filters, amplifiers, and envelope generators. Also located here is the Manager, a set of buttons akin to a programmer, used to select and store sounds and to perform general data-management functions

To the left of the keyboard is a performance control panel, beneath which is a floppy disk drive, and just above the keyboard are a set of Sequencer Controls -- currently for remotely controlling external sequencers, but there's talk of incorporating an on-board MIDI sequencer in future releases of the operating system.

Waldorf have created a suite of control buttons for the Wave, which have a very distinct and attractive style to them. In isolation, each button appears enormous when compared with most of today's synths, but set within the context of the Wave's control panel they look perfectly normal in size. These buttons are mostly round, although the Edit select buttons are rectangular with rounded ends. Very small colour-switchable LEDs are used throughout the instrument to show certain status settings; however, I found the LEDs above the Display buttons very difficult to see, which is a bit of a nuisance because these lights are crucial in the programming of the Wave.

Many of the knobs are continuous -- you just keep turning them and the Wave increments the associated value accordingly. These knobs are also notched for more accurately setting up the instrument. The large red wheel is used like an alpha dial to set up wavetable data.

POWER UP

Like most computers, the Wave's operating system has to be loaded in every time the instrument is turned on. As there is no internal hard drive -- there's really no need for one -- the synth is booted from a floppy. Advantages: it's easy to install the latest operating system which, hopefully, will be continually updated by Waldorf, incorporating new features. Disadvantages: it takes 15 seconds or so to boot up and you're absolutely sunk if you lose or corrupt the boot disk. So the first thing to do once you've booted up is to make a copy. Waldorf will offer to provide the operating system in ROM if you'd like. This is more than just a good idea -- they should do this as a matter of course, as it ensures you can at least get the Wave going in emergencies such as losing your disk or total disk drive failure. You would still be able to override the ROM with a more recent operating system if you have a boot disk in the drive on power-up.

THE DISPLAY SECTION

The Display Section is the Wave's central workspace. A row of eight large blue buttons is rather nicely positioned on the edge of the display panel, and these are used to select the Wave's various Operating Modes. The Wave's primary operating state is Performance, and it defaults to this on power-up.

The other Operating Modes are:

Instrument Edit, which gives you access to all the data that is used to construct a Sound.

External Edit, for setting up external parameters of a Performance.

Wave Edit, for constructing waves and wavetables.

Option, for future updates, and not currently selectable.

Sequencer, for future updates, and not currently selectable.

Global Edit, for determining parameters that apply to all areas of the Wave, such as Tunings, Base MIDI Channels, SysEx, Velocity Curves, Local on/off etc.

Quick Edit, which utilises pre-defined macros to perform simultaneous editing of several parameters related to a Sound.

So, we're in Performance. The Wave is always in this multi-mode; there is no single mode as such -- every Performance consists of up to eight Sounds (or Instruments). The main page of the Performance display window features a status line across the middle detailing the name of the Performance, its location, whether it is an edited version of the saved Performance, and which of the Performance Pages you are looking at. Above the status line are four button labels which define the first four of the eight display buttons (the other four aren't used on this page) -- you can select Master Parameter; Perform Controls; Fader Parameters; or Assign Faders. Below the status line are eight Fader labels which, as you would expect, determine what effect moving the respective faders will have. And just below the Fader labels are a set of values for that fader -- these may be numerical values or the fader might have been set to select a function, in which case the display will identify this function.

It seems complicated, but it isn't, being basically a straightforward, menu-driven, soft-keying system that makes controlling a wide range of functions both straightforward and visually responsive.

The second of the Performance pages -- Instruments -- is the most important. Here you see: i) the Sound that has been selected for that channel; ii) that Sound's program number; iii) a flag that indicates whether you are listening to the saved Sound or an edited version of that Sound, and iv) the set MIDI Channel. The faders are set up as assignable MIDI controllers for the Wave's own Instruments or for external MIDI equipment.

Performance mode is the mode in which you are going to use the Wave, and it is fairly simple to master.

THE SOUND MODULES

At this stage, it's worth going down to ground level and looking at the basic sound modules that are used to construct the Wave's unique and powerful sound.

As stated, the Wave is a 16-voice instrument (expandable up to 48 voices). Each voice consists of two oscillators and a noise generator. The oscillators drive the waveshapers, and it is these that actually produce the 'sound', the oscillators themselves providing the pitch reference. Signals from a noise generator and from the analogue input socket are then fed to the mixer, the output of which is directed to the filter, after which the signal is further modified by the amplifier and finally passed on to a panning module, which sends the signal to the relevant stereo outputs. That's the basic system -- with the addition of a host of modulators to shape and manipulate the various sound modules.

If you look at the various sound modules (oscillator 1, wave 1, etc.), you will see on the control panel a large, angled button marked Edit. Pressing this activates that module, and the display then indicates all the related parameters. Rotating knobs alters values on the display, and the display faders are used to select routing, modulation and other options/signal amounts. This is a very intuitive and intelligent piece of design.

DYNAMIC SPECTRAL WAVETABLE SYNTHESIS

The Wave sounds good for two reasons: firstly, it uses analogue filters; and secondly, it uses Dynamic Spectral Wavetable Synthesis. We'll deal with the filters shortly, but at this stage, let's consider PPG and Waldorf Wavetable Synthesis technology.

Just as in nature there is no such thing as a straight line, there is also no naturally-generated sound that consists of a single, constantly-repeating waveshape. That is to say, all natural sounds, and those produced by acoustic/electric (not electronic) instruments, have a constantly changing harmonic structure. That's why synthesizers producing, say, triangle and square waveforms, need some form of animation to bring them to life. This animation can take the form of detuning the oscillators, introducing vibrato, or adding effects such as chorus and/or reverb. But these solutions are really of the 'closing the door after the horse has bolted' variety.

Another characteristic of acoustic/electric instruments is that when they are played louder or harder, their harmonic content tends to become fuller. Consider, for example, an oboe: this produces a mellow, smooth tone when played softly, but when the oboist gets cooking the sound becomes richer and brighter. It's the same with most instruments. Non-FM synthesizers do emulate this; responding to increased key velocity, the sound naturally becomes louder, and by opening up the low-pass filter in proportion to the key velocity, sounds appear brighter and richer in harmonics. This works, but is a bit of a cop-out.

The Wave synthesizers tackle the problem at source and try to create waveforms which aren't static, but which have a constantly changing harmonic spectrum. How? By using wavetables.

A wavetable is a collection of 64 waves. Each wave can be considered as a waveform with a specific harmonic content. Most wavetables are designed so that there is a harmonic relationship between adjacent waves. The system is comparable to sampling an instrument that is played at different volume levels and then assigning each sample to a different key velocity. However, with wavetables, you're dealing with single waves, not complete samples. More important, though, is the way in which the waves are utilised. The Wave uses modulation to sweep through up to 64 waves, thus producing a sound that has a constantly changing harmonic structure; a processor interpolates between waves so that the transition from wave to wave is smooth.

There are four sources of modulation which can be used to sweep the wavetable, these sources being selectable from an incredible range of sources -- see next section. If no modulation is applied the waveform is static, like a traditional synthesizer. Each wavetable includes standard square, sawtooth and triangle waves, but you can opt to use any of the other 61 waves in the 128 wavetables as a static waveform, should you so desire. Modulation is the key to the rich sound. By sweeping through a range of waves, the output from the oscillator/waveshape is animated to give real depth and a timbral quality that can't be beaten.

A big red knob, which many will recognise from the Microwave, is used to select one of the 128 wavetables. Of these, 64 wavetables are factory presets, which are given names that can be relevant to their applications -- for example, 'Robotic', 'Perc. Organ', 'Strong Harmonics', 'Resonant Harmonics', 'Bellish', 'Electric', and so on. There are many ways of using the waves. For example, '2 Echoes' is a wavetable that starts with a set of mellow waves that get brighter as you step through them, then suddenly jump back to a mellow wave; the structure is then repeated. So if you sweep through the waves using an LFO, you get an echo effect.

The outputs from the waveshapers are fed to a mixer, along with a basic noise source. It's funny that Waldorf made the mixer level controls so coarse at this stage -- there being just eight levels, although each audio source can be further modulated by any modifier from the Modifier Table. The output of the mixer is combined (if so desired) with up to four analogue inputs. If you were using an external sampler keyboard, you could feed the audio output into the Wave, trigger the envelopes and relevant modifiers via MIDI and process the sampler's sound through the Wave's analogue filters, amplifiers, and panning facilities. Neat.

MODULATION

A review could be written on the Wave's modulation facilities alone. To economise on space, I will say that most of the Wave's parameters can be modulated from a vast selection of sources combined together under the title 'Modifier Table'. It is, however, worth listing the contents of this table, as it really gives an ideaof the scope of this instrument:
• LFO 1
• LFO2
• Amplifier Envelope
• Filter Envelope
• Wave Envelope
• Free Envelope
• Control Ramp
• Control Mixer
• Control Delay
• Control Shaper
• Control Sample & Hold
• Control Comparator
• Keytrack (a signal proportional to the key being played)
• Velocity
• Released Velocity
• Aftertouch
• Poly Pressure (external MIDI modifier)
• Playspeed (a value dependent on the time between notes)
• More Keys (measures the number of keys being played)
• Less Keys (the inverse of More Keys)
• Pitchbend
• Modulation Wheel
• Free Wheels
• Sustain
• Pedals 1 and 2
• Buttons 1&2...
• ... plus the complete array of MIDI modifiers.

In addition, at many locations the modifier signal (the Source) itself can be cross-modulated by another signal from the Modifier Table (the Control). Modulation pays a vital role in the sound structure of the Wave, and Waldorf have managed to make it easy -- well, as easy as would be possible -- to create a programming environment that can handle such a vast array of modulation sources and control facilities.

THE FILTER

The analogue filter is the second major contributing factor to the Wave Sound. An analogue filter introduces a degree of distortion to the sound which, it seems, cannot be effectively simulated digitally -- hence the timbral quality. There are, in fact, two filters for each voice: a 4-pole 24dB/octave low pass (the type that typified the fat, warm sound of the old Moogs and Oberheims) and a 12dB/octave high pass filter. By combining these filters, it is possible to construct four filter modes: Low Pass, High Pass, Band Pass, and Dual mode. Selecting the Edit button brings up a comprehensive page on the display. The filter has all the usual analogue parameters -- cut-off frequency, resonance, and its own envelope generator. The display shows all the relevant settings and draws a graph to show what the filter is doing to the sound.

OUTPUT STAGE

An amplifier stage in conjunction with an envelope generator is used to contour each note before passing on to the panning section This defines the position of a sound within the stereo image. There are three sets of audio outputs -- Main, Sub 1, or Sub 2 -- and the panning facility can be applied to any of them. In addition, the panning facility can be modulated by virtually any source. There's also an Aux Send facility, which is akin to that of a mixing desk, but instead of just sending a straight signal to an external effects processor, say, you can modulate this signal, thus opening up a whole new range of creative options.

KEYBOARD & PERFORMANCE CONTROLS

A fairly large performance control panel sits next to the five-octave, C-to-C keyboard. This keyboard is a bit of a weak link; for an instrument of this nature, a six-octave compass would be desirable, especially considering its master keyboard facilities -- but that would make the Wave even bigger. However, Waldorf do offer a 76-note Wave as an option "on demand". Polyphonic aftertouch would have been nice, and I should mention that the black notes clunk on the panel above (if only to cue Waldorf to fix this). Some might expect a fully-weighted keyboard on an instrument of this stature, but personally I don't think it's really necessary.

The Wave's performance controls are intelligently designed, offering a wide variety of options. In addition to the standard pitchbend (centre sprung) and mod wheel, there is a Free Wheel, which can be routed to virtually any destination, and two assignable buttons (seen on the new Ensoniq TS machines and elsewhere). Octave up/down buttons are also on hand, as are the glide controls. Comment should be made about the master volume control, which can be set to send out MIDI Volume commands to all connected instruments for total 'System Volume' control.

Above the keyboard are a set of sequencer transport controls -- the Wave doesn't have an on-board sequencer (yet) but these buttons are used to control external sequencers, in a way that is biased, by the look of them, towards Cubase, but perfectly usable with any software sequencer with a MIDI remote control facility. This is a great idea.

CONCLUSIONS

A synth of this nature marks an incredible investment for a company the size of Waldorf Electronics. But I'm sure they've done their homework -- and they're going to sell a fair few of these instruments.

Waldorf have said we need an instrument that has a good user interface -- one that synthesizer players can easily relate to, that uses wavetable technology for harmonically rich sound, and that employs analogue filters to add the warmth lacking from digital instruments. They've done very well in all these departments. As mentioned elsewhere in this review, they've failed to come up with a set of factory presets that say "buy me" (just as they did when they launched the Microwave), and they've produced the instrument at what I think is quite a high price. Personally, I think they should have aimed for the £3999 mark (ex VAT), and perhaps economised on certain features -- although I must admit that it's hard to see what they could have left out without compromising what is a very high-quality and prestigious instrument.

This isn't the sort of synth you're going to buy just on the strength of the presets. A closer look and listen to the instrument reveals its true nature and character. Put the Wave alongside an S&S synthesizer, switch off the effects section of the latter and play. The Wave will blow virtually everything else out of the water (though I haven't yet had the opportunity to try the new Yamaha VL1, reviewed by Martin Russ elsewhere in this issue). The Wave, as I've explained, forgoes the temporary gloss of on-board effects and gets back to the actual waveforms to create depth. Consequently it has a sound that, for me, cannot be matched.

 

WAVE ANALYSIS

A mention should be made of the wave analysis facility. The Wave will take a sampled sound and extract a wavetable full of spectrums from that sample. You can then edit the wavetable, and utilise it accordingly. It sounds complicated, but all the fancy footwork is done by the Wave, so you don't really have to think too hard.

I took a note from a track I'd created using Mac Sound Tools and saved it in Sound Designer I format. I then formatted a floppy in the Wave, transferred the SDI file onto this disk using Apple File Exchange, then loaded the file into the Wave. After 20 to 30 seconds I was presented with a complete wavetable, and although it initially sounded rather raspy, with a bit of judicious harmonic editing and smoothing I was able to create a wavetable that had the characteristic quality of that sound (a big string sound). I could then use the rest of the Wave's technology to make that wavetable really come alive. At this stage we're running out of space, but I'm sure you get the idea.

Wavetable Synthesis is a remarkable system, and Waldorf have gone to extraordinary lengths to make constructing your own wavetables as simple and as intuitive as possible. The facility to process existing samples in this way is a revolution and will lead to a whole host of new sounds, I'm sure. A complex, fiddly business has been made relatively effortless, and the end results are truly rewarding.

 

FEATURE SUMMARY

• Dynamic Spectral Wavetable Synthesis.

• Analogue multi-mode filter.

• Sample Analysis for user-generated wavetables.

• Dynamic panning.

• Real-time just intonation.

• Master keyboard facilities to control up to 32 external MIDI devices.

• MS-DOS floppy disk drive, HD and DD, for data storage and Sound database functions.

• Software Expandable.

• Hardware Expandable (up to 48 voices).

 

WAVE TECHNICAL STRUCTURE

The Wave is based on a multi-processor system, with an open hardware architecture in order to facilitate future hardware updates. This is similar to the way in which computers allow cards to be plugged into their internal bussing system.

• The main CPU is a Motorola 68000 running at 16MHz. Each additional voice board has its own 68000.

• 512Kb of S-RAM (with battery back-up) and 1Mb of workspace RAM are provided. At present, there is no additional ROM except a small boot ROM for controlling the loading of the system from disk.

• Digital tone generation is achieved using two ASICs per voice board. Each ASIC corresponds to the digital tone generation board of one PPG Wave 2.2 or 2.3.

• Each voice has its own D/A converter, followed by a Curtis filter chip (this includes 24dB/octave and 12dB/octave filter networks). The signal is finally routed to the three stereo output pairs.

 

COOKING WITH THE MICROWAVE

Launched in 1989 (see review in the December 1989 issue of SOS), and a rare example of an instrument with staying power, Waldorf's MicroWave offered a compact (2U rackmounting), more reliable, easier to use and (importantly) cheaper redeployment of the legendary and rather expensive PPG Wave range of instruments. Both families of instrument feature a form of wavetable synthesis, and share a 'family' sound. The MicroWave produces its sounds by manipulating a wavetable that is processed through a comprehensive range of subtractive synthesis-type parameters.The resulting sounds can be almost impossible to obtain with traditional subtractive analogue synthesis or the sample + synthesis instruments that are most prevalent today. The general consensus on Waldorf's signature sound is that adjectives such as industrial, heavy and metallic apply. The instrument is capable of rich sounds with a lot of depth and movement -- a side effect of producing sound by sweeping through a wavetable and utilising the MicroWave's extensive modulation possibilities to the full. Note that Richard Norris and Dave Ball of The Grid use a MicroWave with a selection of voice cards and wouldn't be without it! See the interview with The Grid elsewhere in this issue.

The MicroWave's basic spec is as follows:

• Two oscillators per voice with three modulation inputs, each driving a wavetable memory with four modulation inputs per oscillator.

• 30 factory wavetables make up a wave memory of nearly 2000 waveforms.

• Built-in mixer for wave and noise sources, with four modulation inputs.

• True analogue filter with four modulation inputs and resonance.

• Three assignable envelopes -- one ADSR, one ADSR plus delay, one loopable modular envelope with eight time and level parameters.

• Two LFOs, each featuring four waveforms.

• 8-part multitimbrality.

• Stereo output, with four assignable individual outs.

• Real-time parameter access over MIDI.

The MicroWave is still available new (priced at £999) and is distributed in the UK by Turnkey Studio Systems; you can find contact details at the end of the main Wave review. Derek Johnson

 

THE SOUNDS

The Factory sounds supplied with the Wave I reviewed are, I'm told, the same as those that will ship with the instrument. Obviously, programming sounds for a new instrument comes right at the end when all the sales team and accountants are hassling the production team to get the thing out there. Consequently it's a little bit unfair to judge them too harshly. Having said that, when you get an instrument to appraise as a reviewer, or if you're in a shop or at an exhibition, the first thing you do is try the presets -- it's inevitable. You don't reach for the manual and start programming, do you? You sit down, maybe stick on a pair of headphones, and go through the factory sounds. If you did this with the Wave you might initially be disappointed, doubly disappointed if you were simultaneously looking at the price tag. So preset sounds can be important, especially in creating a good first impression.

Over the next few months, I'm sure that Waldorf will improve on the Wave's presets. Although programming is made easy by the design of the machine, getting a collection of good sounds does take time. One point to consider is that the Wave, being a top-flight, pro instrument, isn't going to sell in huge numbers, therefore there won't be a large user-base coming up with new sounds and circulating them -- so Waldorf have to make sure that they themselves have a good base of sounds for the Wave.

So what do we have at present?

There are two Banks (A and B) of 128 Performances, each Performance consisting of up to eight Sounds, though for the most part the Waldorf programmers have only used one or two Sounds.

'WaveStrings' and 'SynStrings1' are superb string sounds. I don't think I've ever heard such a good synthesized string sound as 'WaveString'; its got everything -- and that's dry, with no effects. There's depth and space and movement here, all in one, and that's pretty typical of a lot of the sounds, many of which explore the possibilities the Wave offers, and provide ideas for programming. For example, a Performance labelled '1-2-3-4-5' utilises a wave analysis of someone counting to five and processes this in a startling manner. With the exception of the strings, don't expect great imitations of other instruments from the Wave's sound banks -- that's not what the Wave is about.

Where the Wave really stands out is with pads, and although some don't sound too special when you play them, stick them into a track and they'll sit there doing their job beautifully -- they don't get in the way, but add an air of expensiveness and quality. I was recording a couple of library music tracks when reviewing the Wave, and luckily discovered this in time to take advantage of it!

The preset banks include lots of bell-like timbres, which seem to be fillers, but you'll find great sounds dotted all around, amid such fillers. Many strong bass timbres are provided, and PPG 2.3 owners won't be disappointed by some of the recreations of its ancestor -- especially 'Classic PPG', a really full, hard-hitting synth sound.

No matter how good your headphones are, use monitors to check out the Wave's Sounds if you possibly can -- headphones, by their very nature, can't do justice to the Wave.

In short, then, there are some real gems in the preset banks, but there should be more -- the Wave is certainly capable of providing them, and it would be a shame for prospective buyers to be less impressed by this lovely instrument for the want of a few hundred sound-programming hours.

 

DIY WAVETABLES

The wavetable is the Wave's basic timbral foundation. 64 factory preset wavetables are included, and 64 locations are available for creating your own -- a task which is fairly straightforward, and very rewarding.

First select a wavetable to Edit. You can now fill this with existing waves or edited versions of existing waves, or you can create new ones. There are various ways to create and edit waves

• HARMONIC EDITING: lets you specify levels of individual harmonics up to the 64th.

• GRAPHIC EDIT: allows you to draw the waveform using the display faders to edit down to individual wave samples.

• FM SYNTHESIS: lets you create waves by specifying parameters of an 8-operator FM Synthesis algorithm.

Clipping, normally a phenomenon to be avoided at all costs can, in the case of wave production, be gainfully employed to produce striking results. If you add lots of harmonics together, you may get clipping; however, by manipulating the clipping using one of three techniques -- digital clipping, analogue clipping, and inverse clipping -- you can positively utilise the additional harmonics this 'distortion' creates.

Certain macros are available to expand, compress and manipulate harmonic structure for specific effect. New waves can also be created by blending, mixing, multiplying, dividing, and indexing (too complicated to explain here) two or more existing waves.

Once the waves have been constructed/edited, they are then simply positioned within the wavetable. Again, there are various macros to facilitate the filling of the wavetable, and for ensuring (if desired) that adjacent waves sit happily with one another. For example, you might have a series of waves where one has a rogue 23rd Harmonic. A macro will sort this out. Another will look at all the waves in the wavetable and adjust them en masse, to bring out a stronger fundamental frequency, for example.

 

SPECIFICATIONS

• Dimensions: Width 1175mm; Depth 550mm; Height 305mm (display panel up),135mm (panel flat)
• Keyboard: 61-note, C-to-C, velocity sensitive, with channel aftertouch
• Performances: 256 on-board locations, as many as you like on disks
• Sounds: 256 on board
• Wavetables: 128: 64 Factory set, 64 User programmable
• Polyphony: 16-voice
• Multitimbrality: 8-part
• Sequencer: Transport controls above keyboard for controlling external sequencer only
• Floppy Disk Drive: 3.5-inch DD/HD, MS-DOS

CONNECTIONS

AUDIO:
• Main Out (x2)
• Sub Out 1 (x2)
• Sub Out 2 (x2)
• Aux Send
• Aux Return (x2)
• Analogue In (x4)

MIDI:
• In
• Thru
• Out (x2)

OTHER:
• Headphones
• Mains Power In
• Sustain
• Pedal (x2)

 

WALDORF WAVE

OS version reviewed 1.525

PROS
• Good design simplifies programming.
• Wavetable synthesis and analogue filters.
• Easy to update and expand for the future.
• Unrivalled master keyboard facilities.
• No on-board effects.
• No drum samples.
• Awesome sound potential.
• Awesome appearance.

CONS
• Awesome price.
• Factory sounds fail to do justice.
• Big and heavy -- just to impress
• Display can be hard to read -- would benefit from VDU output.
• Operating System not yet in ROM.

SUMMARY
A truly professional instrument. Waldorf have taken most of the best elements found in synthesizers from the past 25 years, added a few new ideas of their own and packed them into one big box. Forget the price -- bear in mind that the factory sounds are just scratching the surface -- and just listen to the instrument sing.

 

info

£ Wave £4995; 16-voice expansion board £1499. Prices exclude VAT.

A Turnkey Studio Systems, 14 Flitcroft Street, London WC2 0DT.

T 071 240 2041.

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