Empty bottle of water in a sink, recorded using a self written app on my samsung galaxy phone, converted from mpeg v4 to mp3 using online-audio-converter. Com.
Kitchen sink faucet opening, washing a cup, closing faucet. Recorded in mono mp3 mode on a zoom h2. The recorder then created a 2-track file (and i assume both tracks are identical). Compressed and normalized to -3. 1 db in audacity. Exported in flac mode.