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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In sip.conf, add rxgain=-4.0 to the peer.
This (feel free to correct) should reduce the incoming volume by 4 decibels.
You’ll have to do a “sip reload” for this to take effect.<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>
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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'> asterisk-users-bounces@lists.digium.com
[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 8:33
AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [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>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Thank you! How can I
reduce the RXgain?<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
Am 04.03.2011 um 15:21 schrieb "Danny Nicholas" <<a
href="mailto:danny@debsinc.com">danny@debsinc.com</a>>:<o:p></o:p></span></font></p>
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<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' type=cite>
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face="Times New Roman"><span style='font-size:12.0pt'>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><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><a
href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a><br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] Loudness
of recorded wav-audio</span></font><u1:p></u1:p><o:p></o:p></p>
</div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><u1:p> </u1:p><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hello,<u1:p></u1:p><o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><u1:p> </u1:p><o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><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.<u1:p></u1:p><o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Thanks a lot.<u1:p></u1:p><o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'><br clear=all>
best regards<br>
<br>
Felix <u1:p></u1:p><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><u1:p> </u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>two options are:<u1:p></u1:p></span></font><o:p></o:p></p>
<ol start=1 type=1>
<li class=MsoNormal style='color:navy;mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;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<u1:p></u1:p></span></font><o:p></o:p></li>
<li class=MsoNormal style='color:navy;mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;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<u1:p></u1:p></span></font><o:p></o:p></li>
</ol>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:.25in'><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><u1:p> </u1:p></span></font><o:p></o:p></p>
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