Re: DirectSound Focus Problem

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#515

From: Alec Yu
Date: Thu, 27 Nov 2003 13:34

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Francesco Fabrini wrote:
>  using direct sound  form my real time application.
> 
> I load input samples to a circular buffer and pass them
> to streming sound secondary buffer via notification
> method (notification separated thread).
> 
> Deriving my code from streming data Microsoft example, I
> can listen quite good sound form audio card from input
> signal at 4096 or 8192 sample rate.
> 
> For my scope I'm using a stay on top form, but when I
> change focus to other application or move form I have
> this 2 problem:
> 
> 1) Play Notification events lost constancy in timing
> versus input samples flow stays constant.
> 
> 2) a strange noise is random introduced in audio, mixed
> to my audio signal. How can I understand if this is
> caused from kmixer mixing disturb from other aplications
> audio, or strange interaction in my load input sample
> function.
> 
> Thanks
> 
> Regard
> Francesco
> 
>

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