<html><body bgcolor="#FFFFFF"><div>Thank you! How can I reduce the RXgain?<br><br></div><div><br>Am 04.03.2011 um 15:21 schrieb "Danny Nicholas" <<a href="mailto:danny@debsinc.com">danny@debsinc.com</a>>:<br><br></div><div></div><blockquote type="cite"><div>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;
font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma">
<a href="mailto:asterisk-users-bounces@lists.digium.com">asterisk-users-bounces@lists.digium.com</a>
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style="font-weight:
bold">On Behalf Of </span></b>Felix Dong<br>
<b><span style="font-weight:bold">Sent:</span></b> Friday, March 04, 2011 2:31
AM<br>
<b><span style="font-weight:bold">To:</span></b> <a href="mailto:asterisk-users@lists.digium.com"><a href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a></a><br>
<b><span style="font-weight:bold">Subject:</span></b> [asterisk-users] Loudness
of recorded wav-audio</span></font><o:p></o:p></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">Hello,<o:p></o:p></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">I sent a wav-audio to Asterisk though SIP and ISDN channels and
recorded it in wav-audio at the Asterisk server. I found the loudness level of
the recorded audio was too high comparing with the orginal audio. How can I
ajust it, so that there will be no amplifier used for recording.<o:p></o:p></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">Thanks a lot.<o:p></o:p></span></font></p>
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best regards<br>
<br>
Felix <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">two options are:<o:p></o:p></span></font></p>
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<li class="MsoNormal" style="color:navy;mso-list:l0 level1 lfo1"><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial">reduce
RXgain – assuming your are using Record() command<o:p></o:p></span></font></li>
<li class="MsoNormal" style="color:navy;mso-list:l0 level1 lfo1"><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial">use
sox to reduce the volume; something like sox –v .8 file1.wav file2.wav<o:p></o:p></span></font></li>
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<p class="MsoNormal" style="margin-left:.25in"><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
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