A stellar speckle spectrometer with increased performance and flexibil
ity has been newly developed. In this new spectrometer two synchronize
d detectors are used to observe a dispersed speckle pattern and a spec
klegram. A reflection grating is employed as a disperser. We obtained
a stellar spectrum with the diffraction-limited spatial resolution of
a telescope by referring to specklegrams that are simultaneously recor
ded with dispersed speckle patterns. A preliminary observational resul
t is also shown.