Dolby Audio Drivers

DolbyAPO {Audio Processing Object} 3.30508.581.0 {05/17/2023} driver from MS Update
catalog.s.download.windowsupdate.com/d/msdownload/update/driver/drvs/2023/07/9e5cc7d7-f9cb-42d4-b5e8-f112d76ed814_ae1a1e7bcaf4156833ffe3180708f5fd4d73d247.cab

DolbyAPO {Audio Processing Object} 3.30509.592.0 {07/31/2023} driver from MS Update
catalog.s.download.windowsupdate.com/d/msdownload/update/driver/drvs/2023/11/15873073-6ebf-46cf-be92-9cf0701a5ddb_deceb611962156c9ed7bbbb0d6043bc2053ef879.cab

DolbyAPO {Audio Processing Object} 3.30510.602.0 {09/14/2023} driver from MS Update
catalog.s.download.windowsupdate.com/c/msdownload/update/driver/drvs/2023/10/2ba63462-ff25-45c4-95f3-90c47a23873c_559ac2d77b5efc9d3153d4b714fddd644750216c.cab
 

DolbyAPO {Audio Processing Object} 3.30511.612.0 {11/06/2023} driver from MS Update
catalog.s.download.windowsupdate.com/c/msdownload/update/driver/drvs/2023/12/fbda7a5f-2af1-4fa2-9165-19b68e7cddce_d56bc6769bb7c06de150cc94f6de31f664622c94.cab

DolbyAPO {Audio Processing Object} 3.30600.623.0 {9/20/2023} driver from MS Update
catalog.s.download.windowsupdate.com/c/msdownload/update/driver/drvs/2023/12/df3d55d1-7af1-4816-967a-b9ea7b3ceed4_0e5441e1d29187f05db8bc9d3ed2bfbef1a3dac5.cab

note: this version of the Dolby APO driver requires at least either recent Win10 version or Win11 22H2 version (build 22621)
use older 3.0.30511.612.0 or earlier APO driver if running Win11 RTM/21H2 build 22000