Are you the publisher? Claim or contact us about this channel


Embed this content in your HTML

Search

Report adult content:

click to rate:

Account: (login)

More Channels


Channel Catalog


Channel Description:

Archive of posts for wdmaudiodev at FreeLists

(Page 1) | 2 | 3 | .... | 73 | newer

    0 0

    Hi Eugene, For your beautiful eyes I've changed the name of my Driver in VB-CABLE ! I was not obliged to do it, but I can understand that the VB-VAC name could bring problem and confusing, but you can't prevent people (me or other possible competitors) to present it as a Virtual Audio Cable because it is the obvious description of the product, its concept, its representative image, its function. Like Multi-track Recorder, Graphic Equalizer etc... and tomorrow you will hear about virtual mixing console... ...

    0 0

    Hi, For a miniport driver i will be allocating a buffer and create corresponding MDL by using function *AllocatePagesForMdl*. This method always allocates an integral number of pages from nonpaged pool. Does this mean that if i call *MmGetMdlByteOffset* with this MDL as i/p , the byte offset returned by *MmGetMdlByteOffset* will always be zero? Is there any possibility of getting non zero offset indicating that even though buffer is of say n pages the valid data starts at some non zero ...

    0 0

    Hi Matthew: The KSPROPSETID_BtAudio works for virtual driver A. But after I porting the function to another virtual driver, PropertyHandler_TopoFilter don't get called with GUID KSPROPSETID_BtAudio. If the KSPROPSETID_BtAudio is sent and TYPE is BASICSUPPORT, it will be handled. KSPROPERTY_JACK_DESCRIPTION and KSPROPERTY_JACK_DESCRIPTION2 will be sent and handled successfully though. Here is the code added to support KSPROPSETID_BtAudio: ...

    0 0

    The KsStudio log of driver A and driver B looks the same. Machine Name = TEST KS Studio started at 11:03:52 on 11/22/2012 ------------------------------ Enumerating devices via Setup APIs Enumerating class KSCATEGORY_AUDIO: Enumerated [HD Audio Microphone mixer] \\?\hdaudio#func_01ven_10ecdev_0269subsys_10280400rev_1001#4dd1b1a00001#{6994ad04-93ef-11d0-a3cc-00a0c9223196}\emicintopo ...

    0 0

    I will be allocating a buffer and create corresponding MDL by using function *AllocatePagesForMdl This method always allocates an integral number of pages from nonpaged pool. It does not. It allocates physical memory, not virtual memory or pool. Even if at some point you will get virtual addresses for them, that will not be charged against nonpaged pool. ...

    0 0

    Thanks Daniel. Regards, Surabhi On Thu, Nov 22, 2012 at 11:51 AM, daniel@xxxxxxxxxxxxxxxx wrote: I will be allocating a buffer and create corresponding MDL by using function *AllocatePagesForMdl This method always allocates an integral number of pages from nonpaged pool. ...

    0 0

    When I open the KS Studio, select the FailedDriverEndpoint, then *Attach KS Monitor*. and the *connect* *disconnect* menu can be displayed in Playback device. Buf when KS Studio is closed, or NOT *Attach KS Monitor*, the menu won't show up in Playback. What did *Attach KS Monitor* do? ...

    0 0

    Hi all, I've run into a problem with Nvidia drivers, the behavior is as follows: I setup the HDMI audio output for 7.1, and I can verify in sound control panel that all channels sound correctly. However, if I open the Portaudio WDMKS device (WaveRT) with 8 channels, I can only get sound for channels 1,2,3,4 and 7,8. I.e channels 5 6 are silent (!) Any idea what might cause this discrepancy ? ...

    0 0

    What channel mask are you specifying in your WAVEFORMATEXTENSIBLE? From: wdmaudiodev-bounce@xxxxxxxxxxxxx [] On Behalf Of Bielik, Robert Sent: Monday, December 17, 2012 4:56 AM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Nvidia drivers portaudio wdmks issue Hi all, ...

    0 0

    Hi Matthew, What channel mask are you specifying in your WAVEFORMATEXTENSIBLE? PA initializes the mask of an 8 channel output device default to PAWIN_SPEAKER_7POINT1. Regards, /Rob ...

    0 0

    Hi, It seems that PAWIN_SPEAKER_7POINT1 do not fit the default 7.1 surround configuration. It is better to use PAWIN_SPEAKER_7POINT1_SURROUND as default. Regards, On Wed, Dec 19, 2012 at 8:30 AM, Bielik, Robert Robert.Bielik@xxxxxxxxxwrote: Hi Matthew, ...

    0 0

    It seems that PAWIN_SPEAKER_7POINT1 do not fit the default 7.1 surround configuration. It is better to use PAWIN_SPEAKER_7POINT1_SURROUND as default. Yes, you are most probably correct. I don't think default 7.1 configs have PAWIN_SPEAKER_FRONT_*_OF_CENTER speakers. Testing it tonight. Regards, /Rob ****************** ...

    0 0

    Bielik, Robert skrev 2012-12-19 14:35: It seems that PAWIN_SPEAKER_7POINT1 do not fit the default 7.1 surround configuration. It is better to use PAWIN_SPEAKER_7POINT1_SURROUND as default. Yes, you are most probably correct. I don't think default 7.1 configs have PAWIN_SPEAKER_FRONT_*_OF_CENTER speakers. Testing it tonight. ...

    0 0

    I have an AVStream virtual audio driver, based originally on the avsamp sample but almost completely rewritten. I serve exactly one format at a time, usually 22050-M-16. The only properties I support are the two jack descriptors. If I connect directly to the device in graphedt under the WDM Streaming Capture Devices category, audio plays fine. But if I build a graph using the instance under Audio Capture Sources, it appears that the system audio engine gets involved. One minor side effect is that the pin always says 44100-S-16, even though I don't support that format. The audio does play, however (so someone is converting). ...

    0 0

    What version of Windows are you running on? See the chart here: (v=vs.85).aspx From: wdmaudiodev-bounce@xxxxxxxxxxxxx [] On Behalf Of Tim Roberts Sent: Wednesday, December 19, 2012 2:35 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Audio AGC? ...

    0 0

    Matthew van Eerde wrote: What version of Windows are you running on? See the chart here: (v=vs.85).aspx ...

    0 0

    Yes, that would cause Windows to use your KSPROPERTY_AUDIO_VOLUMELEVEL instead of injecting a software volume APO, yes. You would then control the default volume, as well as the min/max/step size. This is usually used to control a hardware amplifier below the driver; it is not meant to enable kernel-mode digital signal processing, which is risky and entails floating-point state recovery etc. Perhaps a simpler option is to change your pin category to something non-microphone-ish. ...

    0 0

    Matthew wrote: The article says “Of course, the INF file that installs an audio adapter driver can override the operating system's default volume settings with its own default settings” but I don’t know details, or even whether that is still true. ...

    0 0

    Hi all, I am trying to write a WaveRT driver for HDMI on window7. I need to report my data range according to the HDMI sink device (Ex: monitor, amplifier, ...). When I attached the amplifier which can support 8 channel, The control panel will show the information ...

    0 0

    Since you support more than two channels, you also need to override the default data intersection handler. (v=vs.85).aspx The current implementation of the port driver's default handler is limited in the types of data ranges that it can handle: * Only PCM data formats ...

(Page 1) | 2 | 3 | .... | 73 | newer