Manchester United are trying to crank up the atmosphere inside Old Trafford following complaints by supporters that the stadium is too quiet on match days, having appointed an acoustic engineer to assess the problem.
As revealed by the Manchester Evening News and confirmed by the club, a sound specialist will report back to club officials on the volume inside the ground after attending the Premier League game against Liverpool in January.
The engineer will attend further matches before the end of the season and then submit findings on how the atmosphere can be improved inside the 75,000-capacity venue.
A club source told the Manchester Evening News: "There were supporters in the Stretford End who thought they had made a lot of noise only for friends in different parts of the ground to say they couldn't hear them."
United, who play rivals Manchester City in the league on Monday, had previously attempted to set up a dedicated singing section inside the stadium but those plans have been abandoned. A scheme to relocate away supporters from their current location has also been shelved, following a trial when Aston Villa played at Old Trafford last season.
Despite being the largest Premier League ground, Old Trafford has often been lambasted for having a poor atmosphere and the recent complaints came from fans in the more vocal Stretford End.
The former United midfielder Roy Keane famously criticised the noise in 2000. He said: "Away from home our fans are fantastic, I'd call them the hardcore fans. But at home they have a few drinks and probably the prawn sandwiches, and they don't realise what's going on out on the pitch."