The acetylene absorption spectrum has been recorded between 1.10 and 1.05 mum by Fourier Transform Spectroscopy (FTS) and Intracavity Laser Absorption Spectroscopy (ICLAS) based on a Vertical external Cavity Surface Emitting Laser (VeCSEL). Eleven bands of (C2H2)-C-12 were detected, six of them being newly reported. The spectroscopic parameters retrieved from the rovibrational analyses improve significantly the accuracy of parameter values available in the literature. One additional band is assigned to the (CCH2)-C-13-C-12 isotopologue, present in natural abundance in the sample. Finally, three bands newly detected near 12 300 cm(-1) by ICLAS based on a Ti:Sapphire are also reported. The vibrational upper states are unambiguously assigned on the basis of the effective Hamiltonian model and the observed and predicted vibrational term values are found in good agreement. (C) 2005 Elsevier B.V. All rights reserved.