  We consider the regularity question of solutions for the dynamic
initial-boundary value problem for the linear relaxed micromorphic model. This
generalized continuum model couples a wave-type equation for the displacement
with a generalized Maxwell-type wave equation for the micro-distortion.
Naturally solutions are found in ${\rm H}^1$ for the displacement $u$ and ${\rm
H}({\rm Curl})$ for the microdistortion $P$. Using energy estimates for
difference quotients, we improve this regularity. We show ${\rm H}^1_{\rm
loc}$-regularity for the displacement field, ${\rm H}^1_{\rm loc}$-regularity
for the micro-distortion tensor $P$ and that ${\rm Curl}\,P$ is ${\rm
H}^1$-regular if the data is sufficiently smooth.
