10. Digital Products

Put simply, digital designs allow for much greater versatility, as we shall now discover. Digital pedals do not employ discrete analogue components at their hearts, but instead use DSP (Digital Signal Processing) technology to ‘physically model’ the most popular units of yesteryear. But how does physical modelling work?

In order to ‘model’ the sound of a classic pedal, the first thing the design engineer needs is a complete understanding of the inner workings of the original unit. He’ll take it to bits and examine every component within the circuit. He’ll then spend hours taking detailed electronic and acoustic measurements and performing listening tests, until he has eventually built up a complete profile of the device and understands how it works, both electrically and mechanically.

Now it is his job to try to represent these characteristics using a mathematical model that can be stored in digital circuitry and used in real-time to ‘flavour’ your guitar signal, in exactly the same way as the original ‘classic’ wah would have done. This of course is easier said than done! With the sheer number of variables involved, and the huge amount of interaction that inevitably goes on between the various components, trying to come up with a workable global mathematical model like this is very difficult to say the least. So the model is usually built up from smaller pieces - each piece is a mathematical equation or ‘algorithm’ which describes the working of just one part of the original circuit’s function – perhaps a representation of how a transistor works, or maybe the resistors and capacitors comprising the filter section.

Provided that each component has been modelled properly, and under all extremes of operation, the ‘virtual’ components can be assembled – just like building the real thing – into a ‘composite object’ which will then run like a computer program inside the host, mirroring the characteristics of the original wah-wah with all of its nuances and interactivity. As the pedal is effectively a small computer processor running a program, it is possible to imagine selecting from a list of alternative built-in programs using a simple control knob, calling up different models of well known wah-wah pedals, and this is in fact exactly what digital pedals offer. Note that digital units use ADC (Analogue to Digital Conversion) at the input and DAC (Digital to Analogue Conversion) at the output. When the unit is bypassed, even though the effect is disabled, the signal still goes through ADC and DAC, and some claim that they can hear this. With modern conversion techniques this is unlikely – a quick test with your own gear should put your mind at rest.

The Boss PW-10 – a digital pedal

A good example of a digital pedal is the Boss PW-10 (V-wah), which offers faithful emulation of Crybaby, Vox, Morley, and many more. In addition, the pedal operation is ideally suited for controlling other effects, and so rotary speaker, Roto-Vibe and talkbox emulation (as made famous by Peter Frampton) are also provided. Some digital pedals also have the provision to store a selection of favourite sounds and settings in internal memory – three in the case of the PW-10, whose stored sounds can be recalled by using an innovative heel operated switch under the back of the pedal.

Your Contacts
Phone: +49-9546-9223-20
FAX: +49-9546-9223-24

Wah Pedals overview

Native Instruments Traktor S4 MK3 Akai MPK miniplay Nux B3 microphone wireless system Zoom H3-VR M-Audio M-Track 8x4M Korg nanoKONTROL 2 Limited Orange Behringer MX882 V2 Behringer NX3000 Freeway Switch 5B5-01 Black & White Tip Native Instruments Traktor S2 MK3 XVive U3 Microphone Wireless System Emerson Custom ST 5-Way 500K Prewired Kit
(1)
Recommended
Native Instruments Traktor S4 MK3

4-Channel DJ controller and audio interface HAPTIC DRIVE: motorised jog wheels with haptic feedback for a new way of mixing, RGB LED ring around each jogwheel for visual feedback, High-resolution colour displays, Deck FX & Mixer FX, Pro mixer...

to the product
€888
Recommended
Akai MPK miniplay

Akai MPK miniplay; Standalone Mini USB Keyboard Controller; ultra-compact keyboard controller for travelling musicians; 25 synth-action mini keys; 8 red backlit drum pads with Note Repeat and Full Level function (x2 banks, 16 total); 4 knobs edit sounds or send...

to the product
€125
(1)
Recommended
Nux B3 microphone wireless system

Wireless Transmission System 2.4 GHz plug-on system for dynamic microphones, Ready-to-use set of transmitter and receiver, 2.4 GHz band suitable for worldwide license-free operation, 32-Bit / 48 kHz high-resolution audio quality, 6 Channels, Range: Up to 30 m, Latency...

to the product
€177
Recommended
Zoom H3-VR

Multi-Channel Mobile Recorder Allows easy creation of spatial audio recordings, Recording and processing of 360 ° audio material for VR, AR and mixed reality content, 4 Integrated microphones in Ambisonics arrangement, 3 Recording modes: Ambisonics, Stereo Binaural or Standard...

to the product
€369
Recommended
M-Audio M-Track 8x4M

USB Audio Interface High-quality converters with 24-bit / 192 kHz resolution, Hi-Speed ​​USB-C connection, Direct monitoring, Central large volume control, +48V Phantom power for channels 1-4, 4x Microphone / line input (XLR / TRS combo socket), 2x Instrument input...

to the product
€308
Recommended
Korg nanoKONTROL 2 Limited Orange

USB MIDI Controller 8 Faders, 8 Knobs, Solo / Mute / Record per channel, Transport button: Rew / FF / Stop / Play / Rec, Cycle button, Marker button, Track button, Connection: USB mini, Power supply via USB (less...

to the product
€55
Recommended
Behringer MX882 V2

Behringer MX882 V2, 8-channel splitter / mixer, 8 in / 2 out line mixer and 2 in / 8 out line splitter, each channel can operate independently in mixer or splitter mode, usable as 6 in / 6 out level...

to the product
€79
(1)
Recommended
Behringer NX3000

Power Amplifier Lightweight 2-channel Class D amplifier, Power: 2x 900 W at 4 Ωs, 2x 1500 W at 2 Ωs, Inputs: Jack and XLR, Outputs: Speaker Twist, Integrated crossover, Integrated limiter, Mains, signal and limit LEDs, Design: 19" /...

to the product
€179
Recommended
Freeway Switch 5B5-01 Black & White Tip

Freeway 5B5-01 Black & White Tip, 10-way blade switch, direct replacement for ST-Style switches, no modification necessary, 2 banks, the lower bank provides the normal switching functions of a conventional 5-way switch, the upper bank delivers parallel combinations such as...

to the product
€43
Recommended
Native Instruments Traktor S2 MK3

DJ controller and audio interface with Traktor Pro 3 software DJ performance system with 2 channels and a sample deck channel, 3-Band EQ per channel, Hot cue buttons, 14 cm Precision jog wheels, 16 RGB pads, Pro mixer layout,...

to the product
€289
(4)
Recommended
XVive U3 Microphone Wireless System

Digital Wireless Microphone Transceiver System Works without battery or mains power, For use with dynamic microphones, Integrated rechargeable lithium battery, Range up to 20 m / 70 ft (without obstacles), Frequency bandwidth: 20 Hz - 20 kHz, Latency: <5...

to the product
€199
Recommended
Emerson Custom ST 5-Way 500K Prewired Kit

Prewired Electronics Exchange Set For ST style guitars, Hand-crafted with hand-selected premium audio quality parts for improved pickup clarity and response, It also helps "warm up" the sound or tame the shrill and sterile sound of some factory electronics,...

to the product
€77
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.

Please leave a comment. Please enter your e-mail address.