Image from Flickr converted to bitmap then opened in Cool Edit as 32-bit (Float), further processed in Wavelab 6 with the usual toys. <a href="https://www.flickr.com/photos/krazydad/4909968/in/gallery-venus_oak-72157622403260388/" rel="nofollow"><img src="https://farm1.staticflickr.com/4/4909968_8e3872ad6f.jpg" height="271" alt="Flickr Mosaic:These are not pipes." /></a><br/>Flickr Mosaic - 這不是Drone.wav<br/>聲道：2<br/>類型：wav<br/>minimal、chime、mysterious、ambient、background、music、drone、mood<br/>最小、鐘、神秘、周圍、背景、音樂、無人駕駛飛機、心情<br/>資料來源：freesound ( https://freesound.org )