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Hi All:<BR> Recently I use the zaptel drive for my own test program, I connect the digium board to a switch IVR(set alaw), and set all channels connected to the IVR to alaw, then I collect the data use the zaptel (on system invoke read and write), the stream from IVR Server. Then I analysis the data use the "cooledit pro", however if I choose the choice 8000*8bit and alaw there is noisy, if I choose 8000*16bit is normal, Why? Could any body help me ? Thanks very much!!<BR> <BR> <IMG style="CURSOR: pointer" onclick="return Control.invoke('ReadingPane', '_onAttachmentClick', event);" height=299 alt="" src="http://bl139w.blu139.mail.live.com/att/GetAttachment.aspx?tnail=0&messageId=f6f67e7e-1bfd-4074-bad7-ff7b077413bb&Aux=44|0|8CB7C0DB5DF0E40|" width=306><br /><hr />使用新一代 Windows Live Messenger 轻松交流和共享！ <a href='http://im.live.cn/messenger.aspx' target='_new'>立刻下载！</a></body>
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