Sampled waveform to mediaplayer

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3 total messages Started by Roelof Steyn Thu, 12 Jun 2003 15:46

#720

Author: Roelof Steyn
Date: Thu, 12 Jun 2003 15:46

17 lines
1324 bytes

Hi

I need to send data from an IO Card (with Analogue-to-Digital ports) to the
PC's sound card. I have sampled analogue data and I have the following
"inputs":
int    NumberOfSamples
double AudioData[NumberOfSamples];
double SampleFrequency;
The sampled data is speech.

How can I play/record this?
Maybe with MediaPlayer?
Alternatively, I could build a wav-file. Does anybody know the format of a
wav-file or where I could get it?

Thanks!
Roelof

Re: Sampled waveform to mediaplayer

#721

Author: Ted Lyngmo
Date: Thu, 12 Jun 2003 16:50

34 lines
1999 bytes

Roelof Steyn wrote:
 > Hi
 >
 > I need to send data from an IO Card (with Analogue-to-Digital ports) to the
 > PC's sound card. I have sampled analogue data and I have the following
 > "inputs":
 > int    NumberOfSamples
 > double AudioData[NumberOfSamples];
 > double SampleFrequency;
 > The sampled data is speech.
 >
 > How can I play/record this?

Take a look at the waveIn* and waveOut* WinAPI functions. If you need a 
wrapper class for the waveOut* functions, you can download my TWaveOut class 
from here:
http://217.215.147.98/software/cppbuilder/

 > Maybe with MediaPlayer?

Don't know...

 > Alternatively, I could build a wav-file. Does anybody know the format of a
 > wav-file or where I could get it?

Just search for  RIFF WAVE file spec  with http://www.Google.com and you'll 
get tons of hits.

Kind regards,
Ted Lyngmo

-- 
Replace MY_FIRST_NAME in my email address with my first name to send a private
email to me.

Re: Sampled waveform to mediaplayer

#724

Author: Ted Lyngmo
Date: Fri, 13 Jun 2003 22:28

16 lines
1528 bytes

Ted Lyngmo wrote:
 >
 > Take a look at the waveIn* and waveOut* WinAPI functions. If you need a
 > wrapper class for the waveOut* functions, you can download my TWaveOut
 > class from here:
 > http://217.215.147.98/software/cppbuilder/

The last couple of hours, I rewrote much of the class so you might want to 
check our the new version.

Kind regards,
Ted Lyngmo

-- 
Replace MY_FIRST_NAME in my email address with my first name to send a private
email to me.

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