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High speed Schlieren video and pressure trace analyses were used to study the turbulence effects on burning velocities in a constant volume combustion chamber. Propane-air and methane-air mixtures of equivalence ratios between 0.75 and 0.96 were ignited at 101 kPa and 296 K. Schlieren images of flame growth were recorded on video at 2000 frames per second while combustion chamber pressure was simultaneously recorded. Turbulence at ignition was up to 7 m/s intensity with 2 mm or 8 mm integral scale, produced by pulling a perforated plate across the chamber prior to ignition. In the analysis, the turbulence parameters during combustion were adjusted for the effect of decay and rapid distortion in a closed chamber. Results of both video and pressure trace analyses show a linear relationship between turbulent burning velocity and turbulence intensity as expected.