clicking sound in msvad

NTDEV
1

Hi,

Has anyone noticed some clicking sound (I don’t know
what else to call it) in the wave files that are saved
by the msvad driver. All the audio data is correctly
saved except this clicking sound in the background. It
occurs at regular intervals.

And can anyone suggest what might be causing this and
how to fix it.

Thanks in advance

Mudeem

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2

Nice bug report for the MSVAD driver. But do you have a question concerning
driver or kernel development that might assist you in removing the errant
code that is causing this noxious clicking?

–
The personal opinion of
Gary G. Little

“mudeem siddiqui” wrote in message news:xxxxx@ntdev…
> Hi,
>
> Has anyone noticed some clicking sound (I don’t know
> what else to call it) in the wave files that are saved
> by the msvad driver. All the audio data is correctly
> saved except this clicking sound in the background. It
> occurs at regular intervals.
>
> And can anyone suggest what might be causing this and
> how to fix it.
>
> Thanks in advance
>
> Mudeem
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>

3

I think it is being caused by the capturing part of
the msvad. either these clicks are inseted after each
call to CMiniportWaveCyclicStreamMSVAD::CopyTo
function or after call to SaveFrame (i.e after 16K
chunk) I have a hunch that this code might be inseting
the clicks.

I also wanted to know if anyone else has seen this
problem as well

Regards

Mudeem

— “Gary G. Little” wrote:

> Nice bug report for the MSVAD driver. But do you
> have a question concerning
> driver or kernel development that might assist you
> in removing the errant
> code that is causing this noxious clicking?
>
> –
> The personal opinion of
> Gary G. Little
>
> “mudeem siddiqui” wrote in
> message news:xxxxx@ntdev…
> > Hi,
> >
> > Has anyone noticed some clicking sound (I don’t
> know
> > what else to call it) in the wave files that are
> saved
> > by the msvad driver. All the audio data is
> correctly
> > saved except this clicking sound in the
> background. It
> > occurs at regular intervals.
> >
> > And can anyone suggest what might be causing this
> and
> > how to fix it.
> >
> > Thanks in advance
> >
> > Mudeem
> >
> >
> > Do You Yahoo!?
> > Tired of spam? Yahoo! Mail has the best spam
> protection around
> > http://mail.yahoo.com
> >
>
>
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as:
> xxxxx@yahoo.com
> To unsubscribe send a blank email to
> xxxxx@lists.osr.com
>

__
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4

Although I don’t have an answer for you, the most likely reason for clicks in audio is either
dropped packets (due to performance problems or memory shortage problems, for instance) or
incorrect time stamps.

– Max.

-----Original Message-----
From: xxxxx@lists.osr.com [mailto:bounce-214174-
xxxxx@lists.osr.com] On Behalf Of mudeem siddiqui
Sent: Friday, July 15, 2005 2:11 PM
To: Windows System Software Devs Interest List
Subject: Re:[ntdev] clicking sound in msvad

I think it is being caused by the capturing part of
the msvad. either these clicks are inseted after each
call to CMiniportWaveCyclicStreamMSVAD::CopyTo
function or after call to SaveFrame (i.e after 16K
chunk) I have a hunch that this code might be inseting
the clicks.

I also wanted to know if anyone else has seen this
problem as well

Regards

Mudeem

— “Gary G. Little” wrote:
>
> > Nice bug report for the MSVAD driver. But do you
> > have a question concerning
> > driver or kernel development that might assist you
> > in removing the errant
> > code that is causing this noxious clicking?
> >
> > –
> > The personal opinion of
> > Gary G. Little
> >
> > “mudeem siddiqui” wrote in
> > message news:xxxxx@ntdev…
> > > Hi,
> > >
> > > Has anyone noticed some clicking sound (I don’t
> > know
> > > what else to call it) in the wave files that are
> > saved
> > > by the msvad driver. All the audio data is
> > correctly
> > > saved except this clicking sound in the
> > background. It
> > > occurs at regular intervals.
> > >
> > > And can anyone suggest what might be causing this
> > and
> > > how to fix it.
> > >
> > > Thanks in advance
> > >
> > > Mudeem
> > >
> > >
> > > Do You Yahoo!?
> > > Tired of spam? Yahoo! Mail has the best spam
> > protection around
> > > http://mail.yahoo.com
> > >
> >
> >
> >
> > —
> > Questions? First check the Kernel Driver FAQ at
> > http://www.osronline.com/article.cfm?id=256
> >
> > You are currently subscribed to ntdev as:
> > xxxxx@yahoo.com
> > To unsubscribe send a blank email to
> > xxxxx@lists.osr.com
> >
>
>
>
>
>__
> Start your day with Yahoo! - make it your home page
> http://www.yahoo.com/r/hs
>
>
> —
> Questions? First check the Kernel Driver FAQ at
> http://www.osronline.com/article.cfm?id=256
>
> You are currently subscribed to ntdev as: xxxxx@yahoo.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com