  In this paper we study the family of embeddings $\Phi_t$ of a compact
$RCD^*(K,N)$ space $(X,d,m)$ into $L^2(X,m)$ via eigenmaps. Extending part of
the classical results by B\'erard, B\'erard-Besson-Gallot, known for closed
Riemannian manifolds, we prove convergence as $t\downarrow 0$ of the rescaled
pull-back metrics $\Phi_t^*g_{L^2}$ in $L^2(X,m)$ induced by $\Phi_t$. Moreover
we discuss the behavior of $\Phi_t^*g_{L^2}$ with respect to measured
Gromov-Hausdorff convergence and $t$. Applications include the quantitative
$L^p$-convergence in the noncollapsed setting for all $p<\infty$, a result new
even for closed Riemannian manifolds and Alexandrov spaces.
