Digitech DSP Pdf User Manuals. View online or download Digitech DSP Owner’s Manual. Digitech DSP Plus, Music Technology, May The manual claims the abbreviations are printed on the top of the unit – but they weren’t on the review. Digitech DSP Plus, Sound On Sound, Apr There’s no indication in the DSP Plus manual of just how the signal is routed from one effects section .

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As the range of effects is dependant entirely upon digitecu algorithms, I’ll list them here: The optional footswitches can initiate program shift, bypass and delay hold functions.

Any of 14 algorithms see ‘Effect Algorithms’ box can be chosen as the basis for an effects program, and each of the algorithms specifies which of the effects digitecg are utilised, exactly what type of effect is produced by each, and how audio signals are routed between them.

I found manuall a good deal of tweaking was often required with this algorithm to remove or minimise unexpected background ringing, and simply to find the best balance of Diffusion and Delay parameters.

The effects produced by the DSP Digitrch emanate from four processing sections: The flange, on the other hand, has a good deal more bite: There are never any problems with the signal getting ‘lost’ anywhere because you forgot to set a particular mix level: Independent initial delay times up to 1.

Put the lot together – in any one of a number of permutations – and you can produce some very clever effects indeed.

Two further algorithms place a two-band parametric EQ in line before a chorus or flange, and full mono delay up to 1. Other software features include a self-test mode what happens when self-test procedures go wrong? SOUNDING OFF Running through the factory programs, the unit sounds very good, though there’s not actually a huge variety of effects on offer – my initial impressions were of an inordinate number of variations on fairly straightforward reverb and delay combinations.

I knew you were going to ask that – go back and read the rest of the review. You can send us a note about this article, or let us know of a problem – select the type from the menu above. Some of the more interesting factory programs feature heavily flanged echoes, a combination of delay and reverse or gated reverb effects ranging from the subtle to the bizarre, and a good number of pure reverb programs.


Tone them down a little for a honky tonk piano and use just a touch for a warm chorus or a subtle flange. The Plus is capable of producing four. I began this review by outlining the way in which our perceptions of new products are radically affected by what has come before. If you value this resource, you can support this project – it really helps!

Digitech DSP Plus (SOS Apr 89)

The Ultimate Reverb algorithm allows huge scope for creating your own reverb effects, but it does take a little time and experimentation to get the best out of it.

Not particularly friendly, to my way of thinking. Interestingly, a large number of the programs seemed especially suitable for guitar – lots of slapback echo and reverb. In a live situation, it’s possible that the DSP would hang up.

DIGITECH DSP-128 Owner’s Manual

Flange, Multi-tap Delay mxnual. Whereas the Normalised Reflectivity parameter controls the reflectivity of all frequencies equally, dP damping allows the relative decay rates of high and maanual frequency components to be balanced – the simulated environment can therefore 12 made to sound more or less bright.

Examples to fit this scenario can be ddsp in the fields of synthesizers, samplers and effects, and on a shorter time scale, it often seems that a few months can make all the difference between something being perceived as ‘excitingly new and different’ or just one of ‘a recent trend’ for units of a certain kind. The standards by which we judge the worth of new technology change at an alarming manuxl This control is limited to continuous controllers so note velocity, aftertouch and the like are not digitecch for.

The three digitexh programs – small, medium and large rooms – offer maximum reverb decay times of 1. Having checked out the presets I began to investigate the algorithms dp lie behind them, and just what kind of effects are available within each.

Next article in this issue New Order – Technique. One aspect of these algorithms that is common to other MSEPs is that there is a trade-off between the number and complexity of effects used. Music Technology – May Providing manuals and documentation for 10 years!

The LED display can be varied so that as you change parameters they scroll into the display area or pop into it. Its relative weaknesses are that it does not offer quite the flexibility or programming ease of either of its main rivals. Also, the pages which manial have contained details of the factory presets were totally blank so the uses to which some of the presets could be put were not always obvious.


It admits as much in the introduction and says that the DSP software was still being developed while the manual was being written. I found the first six algorithms ideal for thickening sounds. Sound quality is excellent – although I’ve just suggested that this unit has been designed with the guitarist in mind, it’s definitely a studio quality effects processor. These are global assignments allowing you to control pre-delay, reverb time or any of the other parameters – there are ssp in all – in real time from a master keyboard or from a sequencer, for example, by recording the controller data onto a spare track.

High values tend to produce a metallic, ringing sound, and low values produce a grainy, fluttery sound: The manual claims the abbreviations are printed on the top of the unit – but they weren’t on the review model.

The next algorithms I tried were the two containing the multi-tap delays, which provide stereo repeat echoes. If that was the greatest noise source in my setup, I’d be a very happy man.

Searchable archive of old, out-of-print music production magazines. Digitech’s Quad 4, like its predecessor, can treat up to four signals independently, parcelling out its processing power according to your requirements. Overall, the reverb did seem to be slightly ‘dirtier’ sounding than that available in the first six algorithms, though I suspect that’s partly because there’s an awful lot more of it.

DigiTech DSP 128 Plus Digital Signal Processor Vintage Rack

With the unit patched into a mixer and instruments DI’d into it, there were no problems operating the 28 Plus at the dB level. The inevitable consequence of this cleanness is that the output lacks character. Delay time is up to ms, and the EQ is a simple lowpass filter.

Having been suitably impressed by the multi-tap delay functions, the next thing to grab me about the DSP Plus was its Ultimate Reverb algorithm. Large room, Delay, Flange, Filter 3. The digiteech supplied with the review unit was a temporary manual. All programming functions on the unit are carried out with the cursor and parameter buttons, and the four-digit LED display provides modest visual feedback.

The display will also show changes made to a a parameter’s values from a MIDI controller – a dlgitech function.