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<TITLE>Repeater Audio?</TITLE>
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<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">isn't exactly Allstar related, but sorta.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I've got a challenge that I'm not sure how to resolve.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I think I've said this prior. I'v</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">e successfully glued an RTCM to a New Icom NXDN repeater. This repeater is running in mixed analog mode and the Allstar is gated to analog only. There is no external controller running other than the RTCM. The</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> internal controller functions when there is a digital signal and that doesn't come across allstar. For now that's an issue I'm willing to accept on that repeater.</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri"> By using the Disc Out and the Mod in, this setup sounds *awesome*, I'm just blown away at how good it all sounds end to end.</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I'm about to head down this path on a second repeater, but this one I want to bring up as either Digital only or mixed digital. The controller has</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">the above mentioned Disc out, but that only works with</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">an</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> analog signal. To get *transcoded * audio out, you have to use a pin called AF OUT, it's fixed level, but it's not discriminator, at best it sounds like speaker level. This is the only way to get an intelligent audio signal to feed to allstar when running in digital mode, there is no e</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">quivalent of discriminator out when in digital mode.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Because I'm using an RTCM, I also can't *process the audio* or at least</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">it's</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> not obvious. And putting that audio back out into the network, it sounds really bad. it's too bassy, and muddy,</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">basically it's</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">de-emphasized</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> and it really needs to be pre-</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">emphasized</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">. Is there any way with an RTCM to tell anything that I've got</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">de-emphasized</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> audio and to help it out? (it really needs some form of</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">low pass</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> put on it and the mid/high frequencies boosted). Also for note, I'm running my RTCM in conventional mode, not voter mode. and I have a CTCSS gate that is valid with COR *AND* CTCSS (in digital in NXDN they call that RAN codes).</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">So I either need to filter between the radio and the RTCM or in the Allstar code if possible.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">BTW, I really have the same problem coming the other way, FM audio coming from Allstar and being then digitized to NXDN digital (AMBE+2 for those that want to know) *can* sound *really* good, but can also sound really crappy. If the person on the talking end is mumbling, or has a very deep voice, it doesn't sound worth crap, if on the other hand the person has a brig</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">ht voice and talks clearly, it sounds amazing. This has nothing to do with the *emphasis* of this audio, it's FLAT going into the discriminator, the radio from there handles the transcoding.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">So, as a start, I'm looking for a relatively easy (and cheap) way to take speaker quality audio from the repeater and put it out *improved* on allstar with a RTCM. Note, with a URI, I could do that, but I don't seem to know how if possible with the RTCM/Voter/Rpt.conf stuff</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">… </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Anyone faced a similar challenge and found an acceptable approach? I thought about trying one of the CAT audio boards, or maybe building a 3 or 5 band graphic equalizer, but I can't be the only person who's had this issue and solved it?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Thanks in advance, and let me know your thoughts.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">ps. I'm happy to give anyone a demo, just let me know and I'll reconfigure my repeater for digital and show you</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">… I'm testing some analog stuff at the moment, and the new repeater is setting on my floor currently.</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Alan</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
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