The BBC is considering filtering out crowd noise from its World Cup broadcasts following a deluge of complaints about the vuvuzelas.

By Tuesday morning, the BBC had received 545 complaints from viewers about the constant buzzing sound of the plastic horns used by fans in South Africa.

In a statement, the BBC said it has already taken steps to reduce the noise and that it is looking at "other options."

The broadcaster is considering offering viewers the possibility of muting most ambient noise while maintaining game commentary through the "red button" digital service.

Viewers would push the red button on their remote control to receive the quieter broadcast on a separate channel.

On Monday, FIFA president Sepp Blatter defended the vuvuzela.

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