Exhausted organisers of a city-wide music and film festival say they have been deluged with positive messages - as preparations begin for 2013.

Norwich Sound and Vision (NSV) doubled in size for its third year, with more than 100 bands and 60 speakers taking part in the three-day event, which finished on Saturday.

Liars, Errors, Vuvuvultures and Stuart Braithwaite of Mogwai were among the highlights of an event spread across 12 venues.

NSV festival director Adrian Cooke said: 'We've had lots of emails, tweets, Facebook messages and all from people saying they had a good time. I think people were really amazed at the quality of the bands they hadn't heard of previously and that's what we wanted.

'We had people from Norwich, records companies, people that travelled and it all worked. I think people who may have heard of Norwich Sound and Vision and didn't know what it was are finally getting it - and how big and important it could become.

'We've lots of various meetings with partners and sponsors for next year already set up.

'It's here to stay. It's still not quite as big as we want it to be. We need to have some dedicated staff. We were really stretched and the resources we did have, everyone is tired because of it.'

Mr Cooke said all his expectations had been met - and lessons would be learned from the 'odd hiccup'. Some wristband holders were unable to gain entry to Open, in Bank Plain, to watch Totally Enormous Extinct Dinosaurs last Thursday.

He said: 'We were careful to make sure everything was running smoothly and we got in touch with as many people from Thursday as possible. We will definitely look at that and do what we can and avoid that situation again.'

He added: 'A lot of people have been saying they've been knocked out by the sheer breadth and quality of the festival and proud of the city.'

The University of East Anglia (UEA) helped organise several 'vision' events, including a film festival, bands playing soundtracks to silent movies and a 'make a music video in 50 hours' challenge.

Keith Johnston, a senior Lecturer in film and television at UEA, said the university is in NSV for the long-run, and this year's festival offered a chance to test more events to see what did and didn't worked.

Mr Johnston said: 'One of our biggest events was the Sound of Silents. That was standing room only, 150 people in the church and was a real success. It's definitely something we will be doing again.

'The music video competition was smaller than we expected but still did what we wanted - a couple of teams taking part and a couple of good videos, one was particularly good.

'Adrian asked as to do a lot more vision stuff, we threw a few things together - more conference panels, which went well, and a film-maker Q&A that went quite well.'

Singer-songwriter Mary Epworth, who performed at Norwich Arts Centre on day two and was a panelist on day three, said this year's event felt like it had moved forward compared to 2011.

She said: 'Definitely the bands on the bill felt like a step-up in profile. It looked more like an international event this year, especially with getting Liars to play. I am hoping the festival gets more and more on the map. It's a real gem.'