Chinese traders are still on holiday, but fall in commodity prices is putting extra pressure on Aussie. On Monday, gold fell below $1200, which could be a further drag for Aussie, though Aussie was not pushed higher when commodity prices were up indicating general weakness in the pair.
Pair is likely to find support around 0.7720 and resistance above 0.78 handle during today's session. Later today, markets will be focused on Janet Yellens testimony and CB Consumer Confidence figures.