[wdmaudiodev] Re: Audio stream and LFX
- From: Wayne <brocean@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 19 Feb 2009 11:01:02 +0800
Thanks for all your responses.
For there is no GFX in capture endpoints, 3rd part Efx must be moved to LFX.
But multiple LFX's will take more calculation, and more CPU usage. So stream
specific properties are needed to restrain the calculation in one LFX.
On 2/18/09, Larry Osterman <Larry.Osterman@xxxxxxxxxxxxx> wrote:
> Nope, Tim's right - there's no solid connection back to the application.
> While it's true that LFX's are per-stream, they're applied to all streams
> from all applications. There's no effective way of tracking the origin of
> the samples you're processing.
>
>
>
> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of timr@xxxxxxxxx
> Sent: Saturday, February 14, 2009 8:10 PM
> To: wdmaudiodev@xxxxxxxxxxxxx
> Cc: Tim Roberts
> Subject: [wdmaudiodev] Re: Audio stream and LFX
>
> On Sat, Feb 14, 2009 at 11:58:40PM +0800, Wayne wrote:
>>
>> Seemingly that GFX APO works system-wide. As to LFX APO, each stream
>> has its own LFX APO instance, doesn't it?
>
> Well, yes, but it runs in a separate context in the audio engine process.
> There's no solid connection back to the application, as far as I know.
> Perhaps I have missed something.
> --
> Tim Roberts, timr@xxxxxxxxx
> Providenza & Boeklheide, Inc.
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