[en] New experimental results on local H-vibrations in transition metals are examined selecting three examples: 1) high resolution measurements of the fundamental vibrations of the H-isotopes are reviewed. In combination with the also observed higher harmonics they led to an evaluation of the anharmonic H-potential in Nb and Ta. Its knowledge is of particular importance in connection with the fast H-diffusion mechanism in these metals. 2) Spectroscopic observations of H-trapping are surveyed. The measurements revealed detailed microscopic information, e.g. on the symmetry of the trapping sites and their degree of disturbance. Interstitial oxygen and nitrogen impurities as well as substitutional titanium in Nb were found to be strong traps which suppress the precipitation of hydride phases at low temperature, whereas Cr is a shallow trap which cannot prevent phase separation. 3) Recent results on the higher harmonics and the isotope shifts of the H-vibrations in PdH/sub x/ are discussed in view of the anomalous isotope effect of the superconducting transition temperature T/sub c/ in Pd-hydride. These measurements revealed an anharmonic but identical potential for H and D and show that anharmonicity and not an isotope dependent electronic environment causes the T/sub c/-anomaly in PdH(D)