Recording of a passenger car petrol engine running at idle. Relatively smooth engine sound with noticeable high-frequency squealing side noise. Recorded outdoors in Finland using an iPhone 11 …
December 22nd, 2025
Recording of a passenger car diesel engine running at idle. The sound features a steady low-frequency rumble with noticeable amplitude fluctuations typical of diesel engines. Recorded outdoors in …
December 22nd, 2025