I think you are missing what I am suggesting. The software I know of doesn't tune the radio, it tunes it's decoding. So take that full 10.7Mhz and stuff it all into software where you are "receiving" it all at once. You can actually tune multiple channels all at once this way. The software itself picks up the parts it needs based on some parameters you give it.
The software I remember seeing was specifically meant for taking normal radio audio into the soundcard and watching PSK31, and multiple channels of it at once since the sound card was receiving a much wider band than needed, it could see several. All you needed was some math to strip out signals that you aren't centered on, and decode them. ----- "Mark J. Bailey" <[email protected]> wrote: > The radio is an AOR AR5000+3, so it is a wideband unit. The reason it > is > remote is that it is setup at a relative's house with 3 acres and a > nice set > of outside antennas; where I live will not accommodate a good antenna > setup. > The radio also has an output for 10.7MHz IF and, though I don't own > one, > there are a few specturm "display" analyzers that you can view the > 10.7 MHZ > slice all at once and see signal peaks. I don't recall if the > software tool > I use (AR5) interfaces with AOR's spectrum analyzer, but one of them I > saw > would allow you to see out what the analyzer sees in a window and you > could > click on the peak and the software would direct the radio to that VFO > > setting. Someday... :-) Still, any of you who have messed with > radio (HF, > VHF, etc) for any length time (me back to late 70s), it is nothing > like what > it used to be. Long gone are the days of unencrypted RTTY embassy > communications and the like. So, to some degree, it is not as > motivating to > invest heavily into reception gear as it used to be (at least to me). > So, I > was hoping to make it more a function of practical hobby-level utility > and > convenience than cutting edge. If anything, I would like to explore > the > realm of software defined radio next. There are some cool things in > that > arena on Linux as well as Windows. I had not thought of trimming the > buffer > on my existing setup though, so thanks for the suggestion! > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On > Behalf Of Steven S. Critchfield > Sent: Tuesday, September 01, 2009 13:20 > To: [email protected] > Subject: [nlug] Re: Sound system over IP > > > You might want to look at what can be done to reduce your buffers on > your > current solution. > > Current media players buffer an amount of audio data because they are > TCP > streams and are subject to hiccups during congestion. Most people > would > rather deal with a delay they can't exactly observe than to hear audio > drop > outs. > > Your idea of going to RTP wouldn't be bad as RTP can run over UDP and > you > seem to be more interested in the perceived delay than the chance of > dropped > audio. Plus if you have control of the remote end, you can record > local to > capture if you wanted to. > > I might suggest you look at some of the wide band receivers and some > of the > audio tuning apps that use a visual tuning. I have seen some of that > done > with HAM equipment. Granted you might not be interested in tuning a > wide > band across the network, but at least you could see the signal > strengths and > where on the dial before you tuned to them. > > ----- "Mark J. Bailey" <[email protected]> wrote: > > > Something I am looking for that is related but not quite the same > as > > this > > is I have a remote General Coverage radio receiver and it has a > full > > control VB.NET app that runs on an XP VM (Windows has to be good > for > > something :-) at the remote location. That VB.NET app talks to the > > radio > > by way of a COM port on the host. I can either RDP into the XP VM > or > > the > > VB.NET can be remote controlled by another copy using something > like > > DCOM > > (I assume) (I am no M$ programmer). For remote audio streaming, I > > have > > connected it to a linux box sound card's Line In and using > > ICECAST/Darkice, I can easily stream it to wherever using MP3. > > > > But, I also do a lot of VOIP with Asterisk/Trixbox and I know some > > sort of > > real time audio using RTP/RSTP much be possible. But, I am not > sure > > what > > is the best way to accomplish this with a Linux server at the > remote > > end. > > I have to have Linux in the mix somewhere here too! :-) I have > > toyed > > some with Apple's Darwin Streaming Server (DSS) which is supposed > to > > feed > > with RTSP/RTP. The reason I need real time audio is that remotely > > controlling the VFO of a radio is a real pisser if you have to wait > > 5-10 > > secs for the signal's audio to reach you. It would be like tuning > > across > > the FM dial with a 10 second lag. Believe me, it is maddening. I > > have to > > change freq and and wait, change and wait, and so on. I know some > > people > > stream audio from scanners, etc, using things like Teamspeak, but I > > want > > to have the audio served/managed locally. I know with ham radio > > things > > like IRLP (?) and Echolink and Hamsphere using some form of RTP. > > And, > > VOIP too. Ideally what I need is a real time audio client/server > > soluton > > with the server on linux and the clients on windows or linux. > > > > Mark > > > > -----Original Message----- > > From: [email protected] > [mailto:[email protected]] > > On > > Behalf Of David R. Wilson > > Sent: Tuesday, September 01, 2009 10:49 > > To: [email protected] > > Subject: [nlug] Re: Sound system over IP > > > > > > Those answers and more will be at the Axia presentation. > > > > Dave > > > > On Mon, 2009-08-31 at 21:50 -0500, Howard White wrote: > > > Brandon Valentine wrote: > > > > On Mon, Aug 31, 2009 at 10:43 AM, Howard White<[email protected]> > > wrote: > > > >> After our wonderful 64Studio presentation in June and the > > Icecast > > > >> presentation in August, a wild hair got poking on me thinking > > "sound > > > >> system over IP???" > > > > > > > > Howard, > > > > > > > > I think the droid you're looking for is the JACK Audio > Connection > > Kit: > > > > > > > > http://jackaudio.org/ > > > > > > > > Cheers, > > > > > > > > Brandon > > > > > > > Many thanks for your pointer (and David Wilson's also). Jack is > > > included in the 64Studio distro and was demonstrated to us. > > > > > > What I need to know is the hardware level. Plug the microphone > into > > ??? > > > > > to get [IP, USB, Firewire, voodoo]???? Never mind converting > analog > > > > > cables and jacks from balanced to unbalanced to unshielded to > GOK. > > Bear > > > > > in mind, the prime objective is to convert sources to IP as soon > as > > > > > possible so that things like snakes (and spaghetti) are replaced > > with > > > gigabit IP :) > > > > > > Great, I've got a PC with a ??? channel sound card which gives me > > ??? > > > +/- 2 inputs but I got ??? + 10 sources. > > > > > > "Cap'n, the crystals can't take no more!" > > > > > > Howard > > > > > > > > > > > > > > > -- > Steven Critchfield [email protected] > > > > -- Steven Critchfield [email protected] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. 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