noise of the camen (a term that's quite uncommon and may not have a specific meaning in English)

कैमेन की आवाज

English Usage: The mechanic couldn't figure out the bruit de camen coming from the engine.

Hindi Usage: मैकेनिक इंजन से आ रही कैमेन की आवाज को समझ नहीं पा रहा था।