New hybrid violin/cello, cello and violin bundle

Friday, 08 February 2019.   We are pleased to announce an amazing bundle of unique IRs, which includes 25 hybrid violin/cello IRs, 5 cello IRs and 5 violin IRs. All free to use with the vsound pedal. You're welcome! Visit the downloads page or click here.

Signal Wizard Systems at the NAMM Show, January 2019

Wednesday, 30 January 2019.   From setting up on the morning of the 23rd to the last demonstration on the evening of Saturday 26th, the show was crazy, exhausting, exhilarating and downright bizarre! Take a look at this slide show to see what we mean!

prev next

Version 2.3 of vsound software released

Tuesday, 01 January 2019. Signal Wizard Systems is proud to announce the release of version 2.3 of the software for vsound 2. The new-look version includes a number of refinements that make it even more intuitive to use. These include:

  • Floating control windows, and sizeable plots for IRs and frequency responses, making the spectrum editor even simpler to use.
  • Improved button layout, with single-click buttons for commonly used functions.
  • Spectrum editor, introduced in version 2.2, now completely replaces the older EQ functions.
  • User-scalable vertical axis on the frequency display, enabling precise comparisons of spectrum editing (before and after).
  • Improved helpfile (context sensitive and stand-alone PDF).

Signal Wizard Systems to showcase vsound at NAMM 2019, January 24-27, Anaheim, California

Monday, 10 December, 2018. Signal Wizard Systems will be showcasing vsound at this year’s NAMM exhibition, which is taking place at the Anaheim Convention Centre, Anaheim, California, from January 24 – 27. We will be bringing along our latest products, so if you are at the show, we’d love to see you there! We will be located at booth 9151. 

Our visit has been made possible by the generosity of the United Kingdom's Department for Trade and Industry Trade Access programme (TAP).

Click here to find us

Hans Johannsson delivers TEDx on the essence of the violin sound


Thursday, 15 November 2018. Hans Johannsson, the renowned violin maker and major research partner to Signal Wizard Systems, explores a fascinating juxtaposition of an age-old traditional craft on the one hand and the pursuit of science and technology on the other. The development of electric bowed string instruments through digital signal analysis sheds light on the knowledge that has hitherto been solely characterized by tacit intuitive methods, with the aim of expanding classical instrument making. Hans Johannsson has made classical stringed instruments since the late seventies. 

He has lectured on violin acoustics in Europe, Asia, Africa and the Americas, taken part in design exhibitions, produced and participated in television documentaries on violin making and a BBC radio programme documenting the use of technology in traditional violin making. From his workshop in Reykjavik, Hans characterizes and provides many of the impulse responses used in the vsound system, including his own high quality instruments and those of Old Italian heritage.

Version 2.2 of vsound software released

Tuesday, 30 October 2018. Signal Wizard Systems is proud to announce the release of version 2.2 of the software for vsound 2. The new version boasts a number of new features which make the system even more flexible for optimizing impulse responses. These include:

  • A Spectrum Editor -  a  unique and very powerful feature introduced in vsound version 2.2. It allows the frequency response to be modified directly in the frequency domain with exceptional precision, generating a new impulse response that can then be saved or downloaded to the hardware unit in the usual manner. Unlike the graphic and arbitrary equalizers, the Spectrum Editor introduces zero latency in the modified impulse response
  • Improved zoom/unzoom control for frequency responses
  • New cello impulse responses
  • New violin impulse responses
  • Hybrid cello/violin impulse response
  • Improved helpfile (context sensitive and stand-alone PDF)

Spectrum editor example. Click on the left image. The lower plot shows the frequency response of a Stradivarius violin. It contains a notch at 310 Hz. Now click on the right image. The notch has been completely removed. This operation is really simple to achieve. Simply highlight the region of interest with the mouse, select a gain and press "Filter". The system applies the gain and generates a new impulse response. Note the absence of any latency in the new impulse response.


Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam porttitor augue a turpis porttitor maximus. Nulla luctus elementum felis, sit amet condimentum lectus rutrum eget.