As part of the project WITHIN, Tarek Atoui has developed nine new instruments and a sound massage kit which expanded notions of hearing, beyond orality and are activated on the occasion of concerts and exhibitions.

The Sub-ink is a set of four units with a single subwoofer each on which the performer sits in contact with the sound. By touching an ink drawing the musician previously prepares, he / she plays a basic synthesizer in rhythmic or melodic ways. The Sub-Ink is a modular instrument that can be used to control other device such as computers and synthesizers, and to connect and synchronize musicians with different hearing abilities. ¹