to Midi Converters without the Hassle
Sponsored by Sonuus — Music Products
Designed in the UK
Sonuus is a UK based firm producing an innovative
line of audio to midi products for different applications.
This article will be looking into a
trio of products that use their own pitch-detection algorithms
that provide low latency and accurate tracking from audio
input to midi signals.
We start with the G2M, which stands
for Guitar to Midi. The G2M takes your guitar audio and convert
it to digital midi signals which, can then be transmitted
to a tone module or synthesizer, allowing you to trigger any
of the sounds available to these.
The device is monophonic (can play one
note at a time) so is best suited to replicating instruments
such as solo brass, flute, and in fact any other sound where
a lead line or riff needs to played.
To use the G2M you simply plug in your
guitar to the device, and then through to your midi module
or synth using a standard MIDI 5 pin cable.
This means that there is no need to
install anything on or modify your instrument. Simply plug
I tried the G2M with a Korg Micro Korg XL Synth, and instantly I was playing synth
sounds from my guitar with ease. The Micro Korg
has a varied palette of sounds with many retro synth
sounds which suit the monophonic capabilities of the G2M.
Tracking is accurate and practically
I also found the unit to be small and
light and so can easily be carried in any guitar case or gigbag,
also as it is battery powered there is no need to carry cumbersome
Also note the unit carries an onboard
This is the bass version of the G2M
designed to handle the low note of a bass guitar. Again this
was test and found to work well. Especially
suitable for playing synth bass, double bass and similar patches.
The I2M is the USB version of the trio
and is a general all rounder. It provides a class compliant
(no need for special drivers) USB connection to your PC or
MAC which will only Guitar, Bass and other instruments to
be converted into midi for use with your favourite sequencer
or VST instruments.
Something I found on all the units is
that certain sounds worked better than others. For example
brass, woodwinds, guitars, basses and even organs seem to
work well, pads and long string sounds were more difficult
to control however. Also very important the driving instrument
must be well tuned and intonated and one has to play cleanly
and muting unwanted notes etc for the best results.
A great trio of convertors
which can each be applied to specific applications.
For more info and to order please visit
By Ernest H Slade