  We prove that for the mixed $q$-Gaussian algebra $\Gamma_{Q}(H_{\mathbb{R}})$
associated to a real Hilbert space $H_{\mathbb{R}}$ and a real symmetric matrix
$Q=(q_{ij})$ with $\sup|q_{ij}|<1$, the generator subalgebra is singular.

Operator Algebras;Functional Analysis