  We report the measurement of the time-of-flight of ~17 GeV muon neutrinos on
the CNGS baseline (732 km) with the Large Volume Detector (LVD) at the Gran
Sasso Laboratory. The CERN-SPS accelerator has been operated from May 10th to
May 24th 2012, with a tightly bunched-beam structure to allow the velocity of
neutrinos to be accurately measured on an event-by-event basis. LVD has
detected 48 neutrino events, associated to the beam, with a high absolute time
accuracy. These events allow to establish the following limit on the difference
between the neutrino speed and the light velocity: -3.8 x 10-6 < (v-c)/c < 3.1
x 10-6 (at 99% C.L.). This value is an order of magnitude lower than previous
direct measurements.
