Talks between the two sides for the Spain left-back are claimed to have reached an impasse, with the Liga runners-up not prepared to meet Los Che's asking price
It had been claimed that Tottenham ace Gareth Bale topped the Blaugrana's wishlist for a new left-sided player, but his €45m price has forced the Catalans into looking elsewhere for an alternative.
Alba's name has consequently cropped up, and he is reportedly keen to make the move back to Barca where he started his youth career, while he has no desire to extend his contract with Los Che.
However, a transfer fee for the versatile left-back may prove to be a sticking point. The 23-year-old's buy-out clause is valued at €40m, but Valencia could be willing to do business at €15m.
Nonetheless, the Spain international's deal expires in 12 months' time, and, as a result, Barca are not prepared to pay more than €12m for his services, despite being in an advantageous negotiating position.
Alba, who made 50 appearances in all competitions for Valencia during 2011-12, is currently with the Spain squad preparing for Euro 2012 in what will be his first senior major international championship.