search for: getcurrentposision

...adPosition. Never lock the entire buffer, that will halt capture while you compress. Copy the locked region into a buffer, update dwLastFrameReadPosition = dwReadPosition, and unlock the buffer again. Compress the buffer you copied to. Repeat. If you want to avoid the rather gross overhead of GetCurrentPosision, you can estimate the time until the next frame is ready and then just sleep that long, or use IDirectSoundNotify, setting a marker in the buffer for each multiple of framesize, and then wait for the notification event (which you can also plug into your main event loop if you don't want to...

Hello everyone I've a following problem with the speex codec. I'm developing application that is supposed to read sounds from the microphone with DirectSoundCapture. Unfortunately when I want to compress and decompress the sound buffer from DirectSound I only have jitter. Maybe you have some code samples how to compress standard DS buffers: LPDIRECTSOUND8 lpDS = NULL;