[wdmaudiodev] Re: Re : Re: Re : Re: USB Audio/WASAPI channel limits?
- From: Florian Schirmer <florian.schirmer@xxxxxxxxxxxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 13 Feb 2014 19:33:00 +0100
Having a USB 2 audio class driver won't solve the problem for professional use.
Vendors still need to ship ASIO drivers and i'm not sure if there is a
reasonable way to plug those into the usb class driver. So unless we also see
an audio API fully supporting the professional use case (comparable to ASIO or
CoreAudio) there is probably limited benefit of having an USB 2 audio class
driver.
Best,
Florian
On 13.02.2014, at 19:07, robert.bielik <robert.bielik@xxxxxxxx> wrote:
> Touche, but.. how many USB *audio* class specs are there?
> Without USB 2 audio, professional applications using WDM are out of the
> question. But ok, fair enough, there's always ASIO...
> /Rob
>
> ------ Ursprungligt meddelande ------
> Från: Tim Roberts
> Datum: 2014-02-13 18:51
> Till: wdmaudiodev@xxxxxxxxxxxxx;
> Ämne:[wdmaudiodev] Re: Re : Re: USB Audio/WASAPI channel limits?
>
> robert.bielik wrote:
>> Hmm... USB Audio 2 class is a standardized specification. I would've assumed
>> that Microsoft generally would be keen on standards compliance?
>
> The nice thing about standards is that there are so many to choose from.
>
> There are a number of USB class specs that do not have generic in-the-box
> drivers from Microsoft. There has to be a business case to justify the
> considerable development and testing expense. Standards are only interesting
> if they are used. If USB Audio 2 is a niche standard that is only
> interesting to a tiny fraction of the market (and the current evidence
> suggests that is the case), then it doesn't make sense to develop a class
> driver. To four decimal places, Audio Class 1.0 satisfies 100% of the
> Windows users in the world.
>
> As a point of comparison, remember that Visual C++ STILL does not support the
> C99 ISO standard, and there are a lot more C99 developers than there are USB
> Audio 2 devices.
> --
> Tim Roberts, timr@xxxxxxxxx
> Providenza & Boekelheide, Inc.
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