How to read sound card DMA buffer using API?

Is it possible to read the sound card DMA buffe开发者_如何学Gor using API in windows XP and vista?

Thanks.

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You'd probably have to write a driver to get at the actual DMA buffer.

If you're trying to get timely input from the microphone (e.g., for speech recognition), then you might be able to use Windows Raw Input.