Hello I use the Direct KS and work with short packets (5 - 10ms) for low latency. It's OK for many sound cards, but not for Realtek HD Audio (ALC662). I have the crackling sound for packet time < 40ms. Starting from 40ms packets the sound is fine. I have the latest version of the driver. I tried the Direct KS sample, the result was same. Thanks in advance for any suggestions. ********************************************************************************************** This message (including any attachments) issued by RAFAEL- ADVANCED DEFENSE SYSTEMS LTD. (hereinafter "RAFAEL") contains confidential information intended for a specific individual and purpose, may constitute information that is privileged or confidential or otherwise protected from disclosure. If you are not the intended recipient, you should contact us immediately and thereafter delete this message from your system. You are hereby notified that any disclosure, copying, dissemination, distribution or forwarding of this message, or the taking of any action based on it, is strictly prohibited. If you have received this e-mail in error, please notify us immediately by e-mail mailto:lawraf@xxxxxxxxxxxx and completely delete or destroy any and all electronic or other copies of the original message and any attachments thereof. ********************************************************************************************** ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/