[wdmaudiodev] Re: Why USB Audio Class

  • From: swarna jakka <swarna.jakka@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 15 Jan 2010 16:10:23 +0530

Thanks Clemens, for your reply.
Is there any clarity or any further advantages compared to jack supported
audio devices?
USB supports more number of channels. One more question i would like to ask,
is there any comply test for USB audio Class device.

Thanks & Regards,
Swarna.

On Fri, Jan 15, 2010 at 3:59 PM, Clemens Ladisch <clemens@xxxxxxxxxx> wrote:

> swarna jakka wrote:
> > what is the main purpose and Advantages of USB Audio class over audio
> line (
> > jack supported speakers).
>
> Jack-supported speakers can also be connected to USB devices that
> implement the USB Audio class specification, and there are USB speakers
> that also have analog inputs, so your question is somewhat meaningless.
>
> If you want to compare analog speakers with USB speakers, the main
> difference is that analog speakers require the computer to have analog
> output jacks, while USB speakers can be connected to any computer with
> a free USB port.  This allows upgrading (with more outputs and/or better
> quality) the existing sound output, if any, especially on laptops where
> adding a sound card is not possible.
>
> USB speakers have the disadvantage that they work only with a computer.
>
> Why are you asking this question?
>
>
> Regards,
> Clemens
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