[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
Hello Dylan, endpoint info and re-populate everything from scratch? Unfortunately, the only reliable way is to uninstall and reinstall the device. A less reliable way is to restart Windows. The caching...
View Article[wdmaudiodev] Re: USB MIDI multi-client driver creation
The problem is that the current generic windows MIDI driver does not provide multi-client capability so I decided to try and create mine ...
View Article[wdmaudiodev] Re: USB MIDI multi-client driver creation
The problem is that the current generic windows MIDI driver does not provide multi-client capability so I decided to try and create mine Στις Τετ 8 Νοε 2023 στις 5:04 μ.μ., ο/η Radosław Pietrzyk...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Audio driver issues, No speakers or...
If you are developing a driver and swap out the driver binary without going through an uninstall and reinstall process, then the mmdevice cache can go out of sync with the driver capabilities. The...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Audio driver issues, No speakers or...
Fantastic information, thank you! I did manually uninstall and reinstall the device many times, but it was leaving all of the keys under MMDevices\Audio\Render related to it regardless. The PNP device...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
Before going too far on the legacy MIDI implementation, you should be aware of where MIDI is going on Windows. For MIDI 2.0 we are collaborating with AMEI and AmeNote on developing a new USB MIDI 2.0...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
From what I've read, Foobar2000 has included KS support built-in since 2009. In the output devices, I can select mine in exclusive mode which I assume is directly connecting to the KS pin? There are no...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
[heart] Pete Brown (WINDOWS) reacted to your message: ________________________________ From: wdmaudiodev-bounce@xxxxxxxxxxxxx wdmaudiodev-bounce@xxxxxxxxxxxxx on behalf of Gary Daniels...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Audio driver issues, No speakers or...
Ahh, yes. Uninstalling will delete the mmdevice keys for every endpoint type but HDMI and DisplayPort. AudioEndpointBuilder deletes the audio endpoint data when the PNP interface is removed from the...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
Could you provide me with some instructions on how to implement the driver in order to have multi-client capability? Is there any video? I already have Test Signing on on my machine Στις Τετ 8 Νοε 2023...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
It looks to me that you have no bloody idea what you are trying cope with... śr., 8 lis 2023 o 20:44 Nikos Terzis nikosterzis08@xxxxxxxxx napisał(a): in order to have multi-client capability? Is there...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Audio driver issues, No speakers or...
That makes a lot of sense, since yes this is presenting as an HDMI audio output. I'll actually try changing it to be standard speakers, maybe there's something going on between the fact that there's a...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
Well, can you help me? Provide me with some links to read on how to start maybe? Στις Τετ 8 Νοε 2023 στις 9:51 μ.μ., ο/η Radosław Pietrzyk radoslaw.pietrzyk@xxxxxxxxx έγραψε: with... śr., 8 lis 2023 o...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
Are you guys confusing this board with an instant messaging service? Well, can you help me? Provide me with some links to read on how to start maybe? Στις Τετ 8 Νοε 2023 στις 9:51 μ.μ., ο/η Radosław...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
No, I just asked about where to start that is it. Why would we use it as an instant messaging service? Στις Τετ 8 Νοε 2023 στις 9:57 μ.μ., ο/η Harasemiuc Andrei andrei.harasemiuc@xxxxxxxxx έγραψε: On 8...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
At this point, are you still asking about writing a new driver, or are you asking how to install the upcoming Windows MIDI Services MIDI 2.0 driver and service? If the latter, please understand that...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
On Wed, 8 Nov 2023 at 17:43, Dylan Barrie dylan.barrie@xxxxxxxxx wrote: In the output devices, I can select mine in exclusive mode which I assume is directly connecting to the KS pin? There are no...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: USB MIDI multi-client driver creation
Nikos Terzis wrote: No, I just asked about where to start that is it. Why would we use it as an instant messaging service? He was being sarcastic, because you have had 9 messages in one day. Did you...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
Ah, gotcha. Sorry, I was clearly being quite dense there! I'm now using that Virtual Audio Cable tool by the guy who made Audio Repeater KS, and coupled with an audio player that lets me target the...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
Hello Dylan, 2009. Maybe KS plugin was included in some distribution packages, but now it isn't added to the standard package. To use KS, you need to download the plugin (component): ...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
Hi Eugene, that's exactly what I'm doing now (see the details of the last email I sent to the thread), and it is working! When I use Audio Repeater KS plus a virtual audio cable (great tools, by the...
View Article[wdmaudiodev] Re: Audio driver issues, No speakers or headphones are plugged in.
Hello Dylan, register any notification events For some reason I don't understand, PortCls restricts the maximum value of NotificationCount (the number of packets) to 2, returning an error for greater...
View Article[wdmaudiodev] Virtual microphone driver which receives audio data from user...
Hello?? I want to develop a virtual microphone driver which receives audio data from my user mode app. The virtual microphone can be used by video conferencing app like Teams. I reference a github...
View Article[wdmaudiodev] Default Audio Format after Driver Installation ?
Hello, This year, we have built new audio driver for Win10/11 from the SYSVAD example, and when we install it 1. The default format for the playback device is 48kHz 24 bit Stereo ...
View Article[wdmaudiodev] Re: Default Audio Format after Driver Installation ?
Hi Vincent, All is done in the PKEY_AudioEngine_OEMFormat which can be set in the .INF file as : ;; Default Format : S24_LE@48kHz/STEREO. HKR, EP\\0 , %PKEY_AudioEngine_OEMFormat%,...
View Article[wdmaudiodev] Re: Default Audio Format after Driver Installation ?
Of course we have tried this, but it does not work. The default format is always 44.1kHz for recording pin after installation. Also in the driver code, we are already defining default format, but it’s...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Default Audio Format after Driver...
It's ultimately up to the Windows audio engine what format it chooses as the default, but there are various things a driver developer can do to influence that choice. The most foolproof method to force...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Default Audio Format after Driver...
Is there any publication for the algorithm used by the audio engine? ...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Default Audio Format after Driver...
Hello Vincent, Colleagues, in accordance to investigations I did previously under Win 11 you may need also to implement getter for KSPROPSETID_Pin / KSPROPERTY_PIN_PROPOSEDATAFORMAT (in addition to...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Default Audio Format after Driver...
Hello, Thanks all for your different replies… We have implemented the KSPROPERTY_PIN_PROPOSEDATAFORMAT2 (will see if it brings some benefit…). ...
View Article[wdmaudiodev] Re: [EXTERNAL] Re: Default Audio Format after Driver...
Yes, that’s correct, PKEY_AudioEngine_OEMFormat is {E4870E26-3CC5-4CD2-BA46-CA0A9A70ED04},3 and setting it in the .inf is a supported way for audio driver vendors to influence the default format...
View Article[wdmaudiodev] VAD Loopback Pin ignored by Audio Engine
Hello, I added loopback pin in a simple Virtual Audio Device wave filter, and it works as expected when client applications are capturing the speaker endpoint data using basic WASAPI's...
View Article[wdmaudiodev] Re: [EXTERNAL] VAD Loopback Pin ignored by Audio Engine
Application loopback grabs the sound played by a particular application. There's also speaker loopback which is the mixed sound played by all applications, and the system itself, to a particular...
View Article[wdmaudiodev] Re: [EXTERNAL] VAD Loopback Pin ignored by Audio Engine
Thanks for the feedback, Matthew!Does it mean that audio device can't have any control on its endpoint's application loopback by design? Even if it has implemented...
View Article[wdmaudiodev] Re: [EXTERNAL] VAD Loopback Pin ignored by Audio Engine
What do you want to do with the loopback? From: wdmaudiodev-bounce@xxxxxxxxxxxxx wdmaudiodev-bounce@xxxxxxxxxxxxx On Behalf Of Sedrak Arakelyan Sent: Tuesday, January 23, 2024 9:12 AM To:...
View Article[wdmaudiodev] Re: [EXTERNAL] VAD Loopback Pin ignored by Audio Engine
Let me describe the whole picture in this case. We have implemented VAD device whose endpoints could selected by various meeting applications. Our user mode application captures audio on real...
View Article[wdmaudiodev] Continued issues with No speakers or headphones are plugged in
I posted about this a few months ago, and have been trying to resolve it off-and-on since then. I've gotten to the point where I think I've tried everything I'm able to do, and I'm still quite stuck....
View Article[wdmaudiodev] SYSVAD not compatible with Windows 10 LTSC 1809 or 1909
Hello, It seems Windows 10 LTSC 1809 or 1909 does not support ExAllocatePool2 function !?! But this is not the only problem: When we install our new driver based on ...
View Article[wdmaudiodev] Re: SYSVAD not compatible with Windows 10 LTSC 1809 or 1909
? From: wdmaudiodev-bounce@xxxxxxxxxxxxx wdmaudiodev-bounce@xxxxxxxxxxxxx On Behalf Of VB-Audio Sent: 29 January 2024 09:40 To: wdmaudiodev@xxxxxxxxxxxxx Cc: 'Gary Daniels' Gary.Daniels@xxxxxxxxxxxxx...
View Article[wdmaudiodev] Re: SYSVAD not compatible with Windows 10 LTSC 1809 or 1909
VB-Audio wrote: It seems Windows 10 LTSC 1809 or 1909 does not support ExAllocatePool2 function !?! But this is not the only problem: When we install our new driver based on current SYSVAD example,...
View Article[wdmaudiodev] WaveRT output stream driver architecture
After realizing that the sysvad driver did work correctly and then spending a few days going line-by-line to figure out what was different between it and my driver, I finally realized that mine was...
View Article[wdmaudiodev] HLK - KS Topology Test problem
Hi all, I'm trying to get a virtual audio driver through the HLK process so we can get it WHQL certified. Most of the HLK tests are passing, but we're having problems with the KS Topology test - two...
View Article[wdmaudiodev] Re: HLK - KS Topology Test problem
On 2/10/24 2:31 PM, Andrew Dancy wrote: I'm trying to get a virtual audio driver through the HLK process so we can get it WHQL certified. Why? ...
View Article[wdmaudiodev] Re: SYSVAD not compatible with Windows 10 LTSC 1809 or 1909
OK! All problems disappear if there is no more reference to ExAllocatePool2 in our sys file. Thanks ...
View Article[wdmaudiodev] Re: HLK - KS Topology Test problem
can get it WHQL certified. Why? trying to persuade them it's completely unnecessary but at the moment it's still a requirement. ...
View Article[wdmaudiodev] Re: HLK - KS Topology Test problem
submissions? That's assuming I can even find the download, as MS appear to have scrubbed it from their website. This? ...
View Article[wdmaudiodev] Re: HLK - KS Topology Test problem
On 2/12/24 8:06 AM, Andrew Dancy wrote: I'm trying to get a virtual audio driver through the HLK process so we can get it WHQL certified. Why? ...
View Article[wdmaudiodev] Re: HLK - KS Topology Test problem
That's HLK which is what we're having some issues getting tests to pass - ...
View Article[wdmaudiodev] How to enable Swap APO in SYSVAD sample driver without...
For the past few weeks, we've been working with the SYSVAD sample driver. We cloned the SYSVAD driver and successfully installed it on our target machine. However, we've noticed that it's not a real...
View Article[wdmaudiodev] Re: How to enable Swap APO in SYSVAD sample driver without...
I've worked with sysvad in the past. I needed to build a POC that capture system audio buffers. Thank God the project was dropped. Be ready to lose some good sleeping nights. Only MS engineers and some...
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