Possible Clues:

• Confused babble
• Uproar, tumult
• Noisy commotion and din
• It's very sound to be in the middle of the revolution to start with
• There's a lot of it, by the sound of it
• Mild uproar
• Clamour to give spouse year's unemployment benefit initially
• A lot of noise
• Noisy disturbance
• Sound of many voices