WINCE6.0 Audio CODEC Driver

Hello All,

I am working on the Audio CODEC driver. Once the driver gets loaded, at the
bootup time it will try to play the startup.wav audio. After this, i am
getting an error message as,

SwMixer: WaitForBuffer failed. Audio driver missed interrupt?

I tried to comment the SWMixer registry entry also. but, still i am getting
the same error.

Does anyone faced this similar problem, kindly reply.

Thanks in advance...

Anwar
Wed Sep 26 23:07:38 CDT 2007

On Sep 27, 8:44 am, SPARK <SP...@discussions.microsoft.com> wrote:
> Hello All,
>
> I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> bootup time it will try to play the startup.wav audio. After this, i am
> getting an error message as,
>
> SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
>
> I tried to comment the SWMixer registry entry also. but, still i am getting
> the same error.
>
> Does anyone faced this similar problem, kindly reply.
>
> Thanks in advance...


Hi Spark,
Add this following line to your platform.reg file
[HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
"SampleRate"=dword: 0

Regards
Anwar

SPARK
Thu Sep 27 00:31:00 CDT 2007

Hi Anwar,

Thankyou for your reply. I will do this. Do u have any idea about what are
catalog items needed for the Audio Codec Driver?

I am using Wavedev.dll. I selected this. But, in my log message i am getting
an msg as Could not Activate waveapi.dll. Do u ever faced similar kind of
problem.

Thanks in advance.

"Anwar" wrote:

> On Sep 27, 8:44 am, SPARK <SP...@discussions.microsoft.com> wrote:
> > Hello All,
> >
> > I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> > bootup time it will try to play the startup.wav audio. After this, i am
> > getting an error message as,
> >
> > SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
> >
> > I tried to comment the SWMixer registry entry also. but, still i am getting
> > the same error.
> >
> > Does anyone faced this similar problem, kindly reply.
> >
> > Thanks in advance...
>
>
> Hi Spark,
> Add this following line to your platform.reg file
> [HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
> "SampleRate"=dword: 0
>
> Regards
> Anwar
>
>

Anwar
Thu Sep 27 23:06:21 CDT 2007

On Sep 27, 10:31 am, SPARK <SP...@discussions.microsoft.com> wrote:
> Hi Anwar,
>
> Thankyou for your reply. I will do this. Do u have any idea about what are
> catalog items needed for the Audio Codec Driver?
>
> I am using Wavedev.dll. I selected this. But, in my log message i am getting
> an msg as Could not Activate waveapi.dll. Do u ever faced similar kind of
> problem.
>
> Thanks in advance.
>
>
>
> "Anwar" wrote:
> > On Sep 27, 8:44 am, SPARK <SP...@discussions.microsoft.com> wrote:
> > > Hello All,
>
> > > I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> > > bootup time it will try to play the startup.wav audio. After this, i am
> > > getting an error message as,
>
> > > SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
>
> > > I tried to comment the SWMixer registry entry also. but, still i am getting
> > > the same error.
>
> > > Does anyone faced this similar problem, kindly reply.
>
> > > Thanks in advance...
>
> > Hi Spark,
> > Add this following line to your platform.reg file
> > [HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
> > "SampleRate"=dword: 0
>
> > Regards
> > Anwar- Hide quoted text -
>
> - Show quoted text -

The catalog item I included was SYSGEN_AUDIO
Try that

Regards
Anwar

SPARK
Fri Sep 28 03:23:03 CDT 2007

Hi,

I included that catalog item. Whether the SW Mixer is really needed for
Audio Codec?
i commented the SWMixer, then i tried to open the Media player songs, it is
saying the error message as "no mixer found". Can u tell me wht are
components u have selected for Aduio codec?

"Anwar" wrote:

> On Sep 27, 10:31 am, SPARK <SP...@discussions.microsoft.com> wrote:
> > Hi Anwar,
> >
> > Thankyou for your reply. I will do this. Do u have any idea about what are
> > catalog items needed for the Audio Codec Driver?
> >
> > I am using Wavedev.dll. I selected this. But, in my log message i am getting
> > an msg as Could not Activate waveapi.dll. Do u ever faced similar kind of
> > problem.
> >
> > Thanks in advance.
> >
> >
> >
> > "Anwar" wrote:
> > > On Sep 27, 8:44 am, SPARK <SP...@discussions.microsoft.com> wrote:
> > > > Hello All,
> >
> > > > I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> > > > bootup time it will try to play the startup.wav audio. After this, i am
> > > > getting an error message as,
> >
> > > > SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
> >
> > > > I tried to comment the SWMixer registry entry also. but, still i am getting
> > > > the same error.
> >
> > > > Does anyone faced this similar problem, kindly reply.
> >
> > > > Thanks in advance...
> >
> > > Hi Spark,
> > > Add this following line to your platform.reg file
> > > [HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
> > > "SampleRate"=dword: 0
> >
> > > Regards
> > > Anwar- Hide quoted text -
> >
> > - Show quoted text -
>
> The catalog item I included was SYSGEN_AUDIO
> Try that
>
> Regards
> Anwar
>
>

Vicky
Sun Sep 30 09:09:55 CDT 2007

On Sep 27, 12:44 pm, SPARK <SP...@discussions.microsoft.com> wrote:
> Hello All,
>
> I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> bootup time it will try to play the startup.wav audio. After this, i am
> getting an error message as,
>
> SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
>
> I tried to comment the SWMixer registry entry also. but, still i am getting
> the same error.
>
> Does anyone faced this similar problem, kindly reply.
>
> Thanks in advance...

Hi Spark,

[HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
"SampleRate"=dword:0
"Buffers"=dword:4
"BufferSize"=dword:1000
"EnableLowPassFilter"=dword:1
"Priority 256"=dword:dc

as shown above set the SampleRate from AC44 to 0,
This will disable the swmixer.... nJoy

SPARK
Sun Sep 30 23:37:01 CDT 2007

Hi All,

I solved all those issues. Now, i want to ensure that the PDD functions
provided by Microsoft such as private_AudioFillBuffer_Generic( ),
private_AudioComplete( ) need any modifications? or it will work perfectly?
Do u did any modifcations apart from processor register dependency code?

In my case, only H/W is not responding? Apart from that, whenever i press
select the song and play it on media player, the code is executing from MDD
to pDD. If anyone faced similar problem, kindly reply.......

Thanks a lot in advance.........

"Vicky" wrote:

> On Sep 27, 12:44 pm, SPARK <SP...@discussions.microsoft.com> wrote:
> > Hello All,
> >
> > I am working on the Audio CODEC driver. Once the driver gets loaded, at the
> > bootup time it will try to play the startup.wav audio. After this, i am
> > getting an error message as,
> >
> > SwMixer: WaitForBuffer failed. Audio driver missed interrupt?
> >
> > I tried to comment the SWMixer registry entry also. but, still i am getting
> > the same error.
> >
> > Does anyone faced this similar problem, kindly reply.
> >
> > Thanks in advance...
>
> Hi Spark,
>
> [HKEY_LOCAL_MACHINE\Audio\SoftwareMixer]
> "SampleRate"=dword:0
> "Buffers"=dword:4
> "BufferSize"=dword:1000
> "EnableLowPassFilter"=dword:1
> "Priority 256"=dword:dc
>
> as shown above set the SampleRate from AC44 to 0,
> This will disable the swmixer.... nJoy
>
>
>