The leader of the main independence campaign group has said he is convinced of success despite the lack of any major shift in recent polls.
With about 21 months to go before decision day, Blair Jenkins, chief executive of Yes Scotland, said there is plenty of time to win the argument.
"People have been turned off completely by the relentless negativity of the No campaign, the absence of any kind of vision for what Scotland could or should be, and I think that trend is likely to continue," he said from the Yes group's new headquarters in Glasgow, which opens to the public on Monday.
"There is just a great energy out there and I think there is a great level of enthusiasm for independence which, as this year develops and we develop the case for independence and more people tune into the debate, I think we'll see the campaign shift heavily in our favour.
"I think that will be reflected in the polls. I won't tell you how quickly or by how much, but I don't think the polls will be where they are by the end of the year."
A survey of social attitudes published last week, based on research from last year, put support for independence at just 23% - a return to a previous low point in 2010.
A more recent snapshot by polling company TNS BMRB found a 5% drop in people who intend to vote No and a corresponding 5% rise in those who are undecided. That poll put support for independence largely unchanged at 28% with support for remaining in the UK at 48%.
Mr Jenkins said "few" people he has spoken to are firmly decided against independence, preferring instead to keep an open mind. He said; "I'm in no doubt that people will move along that line from undecided to Yes."
Mr Jenkins, a former head of news at the BBC, was reluctant to offer policy views on the direction of an independent Scotland, except to predict a "social democrat" government along the lines of Scandinavian countries. But he conceded that voters are not so keen to pay higher taxes for better services.
"I think people will want to see policies that address the problem of economic inequality and health inequality in Scotland," he said.