I want to know if the lv1 can be used as USB Interface for computers
Hi @Danieltorresmera28 and welcome to Waves Forum
eMotion LV1 is a digital mixing console software for front-of-house, monitor and broadcast engineers, which is based on Waves SoundGrid technology and is designed to work in a SoundGrid network environment.
It is not an audio I/O or audio interface device.
In most cases it will require additional equipment to run along with, examples of which you can find here.