<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Sorry, this deserves a better expansion. Sometimes I get in a hurry.<div><br></div><div>Asterisk ships audio around (on the links, etc) as line-level audio (not pre-emphasized and needs no de-epmhasis). This works out great for telephones, computer clients, voice announcements, etc because Asterisk doesn't have to do any filtering. After all Asterisk is a telephone PBX where you would expect audio to be line-level (speaker/mic) audio. This leaves the pre/de-emphasis up to app_rpt channel drivers. Chan_usbradio and chan_voter can add pre-emphasis. Chan_simpleusb cannot pre-emphasise. <div><br></div><div>With chan_voter the DSP pre-emphasis is turned on by setting txctcss = xxx.x in voter.conf. If you want pre-emphasis but no TX P/L set txctcss = to some (any) tone and set txctcsslevel = 0.</div><div><br></div><div>Hope that helps.</div><div>--</div><div><div apple-content-edited="true"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Verdana; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Tim<br>:wq</div></span></span>
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<br><div><div>On Aug 28, 2013, at 10:26 AM, Tim Sawyer <<a href="mailto:tim.sawyer@me.com">tim.sawyer@me.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html charset=windows-1252"><base href="x-msg://33/"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Absolutely, yes. That is it's normal mode. <br><div>
<span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">--<br>Tim<br>:wq</div></span></span>
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<br><div><div>On Aug 28, 2013, at 9:42 AM, KJ6KO <<a href="mailto:kj6ko@innercite.com">kj6ko@innercite.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div bgcolor="#ffffff" style="font-family: Verdana; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><font size="2" face="Arial">I am looking into an RTCM. Does it have the capability of driving a modulator directly? May have to use it with an old Palomar controller which is set up for direct modulator input style TX audio (pre-emphasized)</font></div><div><font size="2" face="Arial"></font> </div><div><font size="2" face="Arial">txprelim=yes?</font></div><div><font size="2" face="Arial"></font> </div><div><font size="2" face="Arial">I know it has the ability to de-emphasize the DISC audio from the Palomar.</font></div><div><font size="2" face="Arial"></font> </div><div><font size="2" face="Arial">Thanks..</font></div><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 8738 (20130828) __________<br></div></blockquote></div></div></blockquote></div><br></div></div></body></html>