Smartphone Developer Forum - Problem capturing small audio blocks in C#

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Author

Problem capturing small audio blocks in C#

APe

2005-01-23, 4:04 pm

Hello,
I'm trying to make a Full-Duplex audio application, and I would like to have
little delays sending the audio stream, so I need to capture audio in small
buffers and send it as soon as possible.
For the moment I just made the sound capture. I'm using the WaveIn from
P/Invoke library modified to stream the audio, instead of saving it to a
file. I'm programming it in C#. If I use large blocks of audio, I have no
problems, but as soon as I reduce them (200 ms or less) I have audio gaps...
It seems as if the device can't proccess the blocks so fast (I'm using a
XDA-II).

Can this be true? Or the device is perfectly capable to do it and it has to
be a programming error?

And... if it is true that the device can't work so fast using the .NET
Compact Framework technology, could this be done using native code?

Thanks in advance.

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