🚀 go-pugleaf

Carl Danley wrote:

>Anyone able to write me some sample coding for creating a stream to record 
>audio to using the waveIn, waveOut API? 

Since you want to forward the "stream" over TCP/IP,
I think simple buffered read/writes would be simpler.
I have outlined the documentation and general
overview in the sockets group.

"Carl Danley" <cdanley@codebyter.com> wrote in message 
news:48690f45$1@newsgroups.borland.com...
> Anyone able to write me some sample coding for creating a stream to record 
> audio to using the waveIn, waveOut API?

You'll be using the waveIn* functions to open and read from an audio input 
device. The waveOut functions are for writing sounds to audio hardware, not 
for writing WAV files.

Start with waveInOpen:
http://msdn.microsoft.com/en-us/library/ms713735(VS.85).aspx

I don't know what you are recording audio -to-, so I'm assuming to disk. As 
you capture samples, it's straightforward just to write to WAV files 
directly with stdio or iostreams or whatever your preferred API is. Here is 
the WAV file format, they are much easier to write than they are to read::
http://ccrma.stanford.edu/courses/422/projects/WaveFormat/

You only need to write the "data" and "fmt " subchunks. Just write the 
header with the appropriate values then write all the samples, nothing to 
it.

You could also consider using DirectSound, or DirectShow. It's trivial with 
both, assuming familiarity with DirectX and COM. I believe there is a sample 
class CWaveFile that comes with DirectSound that can also handle writing WAV 
files:
http://msdn.microsoft.com/en-us/library/bb206370(VS.85).aspx

See the TOC on the left of that link for more DirectSound links. One 
advantage of DirectSound, or DirectShow, is that it becomes extremely easy 
to use other codecs, such as MP3, to record audio, and also to use files on 
disk as well as hardware as audio sources (or any source with a DirectSound 
driver) without modifying much application code.

Jason

"Jason Cipriani" <jason.cipriani@nospam-gmail.com> wrote in message 
news:48694148$1@newsgroups.borland.com...
> "Carl Danley" <cdanley@codebyter.com> wrote in message 
> news:48690f45$1@newsgroups.borland.com...
>> Anyone able to write me some sample coding for creating a stream to 
>> record audio to using the waveIn, waveOut API?

Oh yeah, I forgot, you may also want to consider AudioLab:

http://www.mitov.com/html/audiolab.html

It's free, incredibly powerful and easy to use, and contains VCL components 
for handling all this kind of stuff for you.

Jason