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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi all,</SPAN><?xml:namespace prefix
= o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have been trying to implement
audio echo cancellation using mdf.c from opal-2.2.2. Using testecho.c the output
obtained is not satisfactory. It is cancelling the far end signal instead of the
near end signal as per requirement. I have been moving in circles figuring how
to approach the problem. Is there something wrong with the mdf that I am
using?</SPAN><o:p></o:p></P>
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face="Times New Roman"> <o:p></o:p></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I would be really thankful if
anybody could guide and help in this matter. I am attaching mdf, testecho, as
well as input .wav files for reference.</SPAN><o:p></o:p></P>
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face="Times New Roman"> <o:p></o:p></FONT></FONT></P>
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face="Times New Roman"> <o:p></o:p></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Regards,</SPAN><o:p></o:p></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Gorun Butail</SPAN><o:p></o:p></P>
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