[wdmaudiodev] Re: help with virtual audio driver.

  • From: admin@xxxxxxxxxxxxxxxxx
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Tue, 11 May 2004 10:44:58 +0800 (CST)

Thanks for the reply.

Actually
I want to make it a virtual audio driver. It don't need a specific hardware. It 
uses the sound
card to play or record. But it acts like a true audio device there. So apps 
that use it can work
normally, but I can have control on the data stream in this driver now.

I have looked at MSVAD driver in WINXP DDK. It writes the data to disk. I 
wonder how to send the
data to another true sourd device at the same time.





> If your driver is writing to the actual sound card, then how can you call 
> that as virtual audio
> driver
> ? If you want a sample of real aduio driver then, micro soft provides ac97 
> sources.
>
> -Esha
>
> admin@xxxxxxxxxxxxxxxxx wrote:
>
>> Hi, All:
>>
>> I am newbie in driver developing.
>> I want to implement a virtual audio driver working under win9x and nt base 
>> system such as
>> win2000,
>> windows xp.
>>
>> 1. Can the msvad example in XP ddk be used in win9x? It seems to be a wdm 
>> driver.
>>
>> 2. The virtual driver need to be transparent, it will send the data to an 
>> actural sound card.
>> How can I do this in the driver?
>>
>> Thanks
>>
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