Wrist-band inspections and festival entry points are the focus of the security upgrade which intends to "preserve the integrity" of the renowned event.

The new measures come as the festival enjoys record ticket sales and boasts a line-up of acclaimed international and local artists.

Ticketing manager Ian Wood said while the changes were only minor, they would have a big impact on detecting fraudulent activity.

"We have the ability to detect fraud and every year we continue to improve the gate procedure," he explained.

"This year there will be closer visual inspection to improve security and we have made minor changes in identification and presentation of wristbands."

Mr Wood said the operation of the Campbell Street and Southcombe Park entrance gates would be altered.

He said festival patrons would enter the gates in single file and security guards would individually scan each wrist band.

"In the past we have just had introductory points where groups could just walk through, so we have changed that a little bit," Mr Wood said.

"It will be more organised and controlled so people can file through areas.

"It won't cause any inconvenience and it won't slow the process down."

Mr Wood said the measures aimed to maintain the festival's reputation. "We need to preserve the integrity of the bands, performances, and the festival ? it has a good family image."

With only a month to go before the festival, Mr Wood said ticket sales were booming.

He said the inclusion of 22 international artists in the line-up had boosted the festival's appeal.

"Tickets have nearly sold out," Mr Wood said.

"A significant amount always sells out in the first weeks, but there are only a few left."

He said the festival, now in its 34th year, lured at least 27,000 visitors annually.