Audible EcoSystemics n. 3a (Background Noise Study) (2003) by Agostina Di Scipio:
Der tönende See (2000) by Kirsten Reese
Kirsten Reese has also made an online documentation of Der tönende See, which allow you to hear the sound of several bowls by moving your computer mouse on them.
A documentation on Eliane Radigue. She mentions how she places loudspeakers in the concert hall at 9’55”:
Berliner Lautsprecher Orchester (since 2013) developed by Wolfgang Heiniger. This orchestra has not a symmetrical set-up, in contrary to the Acousmonium.