Possible Clues:

• Increase of volume
• One of those increasingly loud types gets credit for making scene at party
• Gradually becoming louder
• Time to leave street party — it's getting noisier
• Row cut short in belief of increasing noise level
• Gradual build-up at soccer end again
• Cut short street party building to a climax
• Increasing noise in rowing clubs censored
• Soprano's increase
• Peak of intensity