Hi, MS will send down the volume levels for channel 0 and channel 1 only. channel 0 indicates all the left side channels, (front left, surround left and etc). and channel 1 indicates all the right side channels. The reason why you get the same level for both is because you change the volume which will apply for the both channels. If you change the pan, you will see the difference. R. Geller >>Hello, >>does anyone know about volumelevel support in a WDM >>mixerdriver? >>I added KSPROPERTY_VOLUMELEVEL in my driver, but >>channels 0 and 1 canot >>be controlled independed from each other. They have >>allways the same >>level. Why? >>What values should the basicsuporthandler return >>thanks, >>Uwe __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/