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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi<font color=navy><span style='color:navy'> all</span></font>,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m currently testing out the speex echo canceller to
determine if it is suitable for use in a client’s product. I have a few
questions regarding problems that I’m having and I would appreciate it if
anyone could help me out.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<ol style='margin-top:0in' start=1 type=1>
<li class=MsoNormal style='mso-list:l0 level1 lfo3'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I provide to .wav files as
arguments to testecho and the output generated always seems to be 44100 Hz
even though the sampling rate in testecho.c is set to 8000 Hz. Why is
this? How can I change this so that the output file is 8000 Hz?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo3'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>The two input files I specified
are .wav and the output is .sw, is this fine? Or do the input files also
need to be .sw?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo3'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>When I test the echo canceller
on slow, non-continuous speech (i.e. counting from 1 to 10), the echo is
removed and the output sounds great. However, if I try to remove the echo
from an audio file containing continuous speech (i.e. reading a paragraph
of text), the output is distorted and the speech can barely be heard. Any
ideas on how this can be fixed?<o:p></o:p></span></font></li>
</ol>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m using the speex-1.2rc1 source.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Mani Ramezani<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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