The devices are our own range of sound cards (http://www.innescorp.com.au/categories/72_professional_pci_sound_cards) and radio broadcast capture cards (http://www.innescorp.com.au/categories/73_radio_capture_cards). The peak meter nodes support the KSPROPERTY_AUDIO_PEAKMETER and KSPROPERTY_AUDIO_CPU_RESOURCES requests as per the WDK documentation and, as I said, work fine on the earlier versions of Windows. Jeff -----Original Message----- From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Cheng-mean Liu (SOCCER) Sent: Friday, 2 March 2012 12:28 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Re: Are hardware peak meters supported on Windows 8? That sounds like a bug to me. What audio device are you using? -----Original Message----- From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Pages Sent: Thursday, March 01, 2012 4:21 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Are hardware peak meters supported on Windows 8? Most of our cards have hardware peak meters in their topology, which work fine on XP, Vista and Windows 7, but on the Windows 8 Consumer Preview they are ignored, with IAudioMeterInformation::QueryHardwareSupport not setting the ENDPOINT_HARDWARE_SUPPORT_METER bit. Is this by design, a bug, or is there some trick to making them work? Jeff ****************** 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.com/ ****************** 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.com/ ****************** 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.com/