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] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
