WMA recorder

Hi,

I am looking at a requirement to possibly record voice on my device in
wma format.... but dont seem to be getting anywhere, probably due to
lack of experience in Audio!

I went thru the waverec sample, which basically records in .wav
format. Is there a way to convert the .wav file to wma? Better-off, I
would like to directly sample and create the wma file.

Does anyone have some experience on this?

Thanks
- TaN

Dean
Wed Apr 30 12:57:46 PDT 2008

I don't have any experience doing that, but it's likely to be a lot more
complex than what you're hoping. You should be able to set up some kind of
DirectShow filter to do this, but you'll need a WMA encoder (which MS
doesn't provide). You'll then have to write your application as a
DirectShow application.

The problem is WMA is not a native audio format, .wav is. You'll start with
.wav and then encode it to WMA. That is a complex, cpu intensive operation.

--
Dean Ramsier - eMVP
BSQUARE Corporation


"Tarun" <tarun.nigam@gmail.com> wrote in message
news:ae8f77f6-c548-409a-ab96-8db390a19a91@v26g2000prm.googlegroups.com...
> Hi,
>
> I am looking at a requirement to possibly record voice on my device in
> wma format.... but dont seem to be getting anywhere, probably due to
> lack of experience in Audio!
>
> I went thru the waverec sample, which basically records in .wav
> format. Is there a way to convert the .wav file to wma? Better-off, I
> would like to directly sample and create the wma file.
>
> Does anyone have some experience on this?
>
> Thanks
> - TaN

Rob
Mon May 05 06:20:00 PDT 2008

wma (vs wav) hardly seems like a sensible requirement on its own.
what is the underlying requirement / reason ?
maybe it's compression ? or compatibility with something?
perhaps there are other options, besides staring yourself blind on WMA.

Greetings,
Rob.






"Tarun" wrote:

> Hi,
>
> I am looking at a requirement to possibly record voice on my device in
> wma format.... but dont seem to be getting anywhere, probably due to
> lack of experience in Audio!
>
> I went thru the waverec sample, which basically records in .wav
> format. Is there a way to convert the .wav file to wma? Better-off, I
> would like to directly sample and create the wma file.
>
> Does anyone have some experience on this?
>
> Thanks
> - TaN
>

Graeme
Thu May 08 04:08:44 PDT 2008

If it helps PocketPC notes application records to wav but it is compressed
to GSM610, this codec is supported in Windows CE as well (if you've added
it!) via the ACM interface, its pretty easy to write a WAV with this in or
get a a dshow render to support this using an ACM wrapper as the input type
to the ASF writer.

--
--
GraemeW
Web - http://www.bytesnap.co.uk
Blog - http://ce4all.blogspot.com

"Tarun" <tarun.nigam@gmail.com> wrote in message
news:ae8f77f6-c548-409a-ab96-8db390a19a91@v26g2000prm.googlegroups.com...
> Hi,
>
> I am looking at a requirement to possibly record voice on my device in
> wma format.... but dont seem to be getting anywhere, probably due to
> lack of experience in Audio!
>
> I went thru the waverec sample, which basically records in .wav
> format. Is there a way to convert the .wav file to wma? Better-off, I
> would like to directly sample and create the wma file.
>
> Does anyone have some experience on this?
>
> Thanks
> - TaN