Help with audio application on Dell Axim

For the past two months I have been trying to resolve a problem that
occurs only on the new Dell Axim (A05 ROM version). I have a sound
application that listens to the microphone continuously and displays
an analysis of that sound. While my application is running, if the
"power" is turned off and back on, the stream of audio buffers to my
application stops. Sometimes it starts up again at an apparent sample
rate of 10% lower than normal. Usually it takes a soft reset to clear
the condition. This problem can also be verified by interrupting a
recording in the Pocket Notes program.

What I would like to know is does anyone have a solution? I have
written a minimal "Hello, world" applicaiton that demonstrates the
problem by simply counting input buffers as they are returned. I
would desparately like to know if anyone has written a continous-input
sound application that can gracefully survive a power-cycle on the new
Dell Axim. (This is supposedly after the "fix" that was disseminated
by Dell in late July.)


-Robert Scott
Ypsilanti, Michigan
(Reply through newsgroups, not by direct e-mail, as automatic reply address is fake.)

Almon
Thu Oct 16 04:03:30 CDT 2003

Hi,

Have you tried using CeSetUserNotificationEx() with
NOTIFICATION_EVENT_WAKEUP in your app so you can
detect a resume and maybe try to close and reopen waveIn?

I'd be interested to know what you've tried so far that does not work.

Almon B. Strowger
KOOK Pocket Software

"Robert Scott" <no-one@nowhere-q7x.com> wrote in message
news:3f8d8b6e.22909395@news.wwnet.net...
> For the past two months I have been trying to resolve a problem that
> occurs only on the new Dell Axim (A05 ROM version). I have a sound
> application that listens to the microphone continuously and displays
> an analysis of that sound. While my application is running, if the
> "power" is turned off and back on, the stream of audio buffers to my
> application stops. Sometimes it starts up again at an apparent sample
> rate of 10% lower than normal. Usually it takes a soft reset to clear
> the condition. This problem can also be verified by interrupting a
> recording in the Pocket Notes program.
>
> What I would like to know is does anyone have a solution? I have
> written a minimal "Hello, world" applicaiton that demonstrates the
> problem by simply counting input buffers as they are returned. I
> would desparately like to know if anyone has written a continous-input
> sound application that can gracefully survive a power-cycle on the new
> Dell Axim. (This is supposedly after the "fix" that was disseminated
> by Dell in late July.)
>
>
> -Robert Scott
> Ypsilanti, Michigan
> (Reply through newsgroups, not by direct e-mail, as automatic reply
address is fake.)
>

no-one
Thu Oct 16 05:58:51 CDT 2003

On Thu, 16 Oct 2003 02:03:30 -0700, "Almon B. Strowger"
<strowger@NOSPAM.kook.com> wrote:


> Have you tried using CeSetUserNotificationEx() with
>NOTIFICATION_EVENT_WAKEUP in your app so you can
>detect a resume and maybe try to close and reopen waveIn?

Yes, I've done exactly that, and it doesn't help. Apparently the
damage is already done by the time the wakeup occurs. There is a
Windows CE function to get notification of the power-down before it
occurs, but that function is not in the Pocket PC.

Maybe it's impossible, and only a fix from Dell will work. That's why
I'm asking if anyone else has succeeded at writing a continous-input
sound application that can gracefully survive a power-cycle on the new
Dell Axim.



-Robert Scott
Ypsilanti, Michigan
(Reply through newsgroups, not by direct e-mail, as automatic reply address is fake.)