[hpsdr] Future projects?

[Murray Lang]

If it turns out to be necessary to define our own protocol then I'd like 
to see it support the transport of frequency domain audio data as well  
as control signals.
The scenario I'd like to see is an SDR (RX) server that acquires the 
data and places the FFT result in shared memory. One or more instances 
of a proxy module can then sniff this, moving up and down the spectrum 
under the control of a remote stub. The spectral data is sent back, 
maybe compressed, to the remote stub where it can be IFFT'd and further 
processed. Maybe there is a better approach, but the idea is to do the 
least amount of work on the server so that it can support the maximum 
number of remote connections. I haven't put much thought into the TX 
equivalent of this.

Murray VK6HL

Naylor Jonathan wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi All
>
> I've been doing some thinking today about a couple of side projects
> that I think would benefit the SDR community. Let me run them past you.
>
> 1. Define a network protocol, or take an existing one, for moving audio
> data between separate machines. This would allow for using (say) WSJT
> on a different machine to the SDR DSP processing. Such a protocol
> should include a negotiation system so that sample formats and sample
> rate information can be passed before the actual data. For use on a
> LAN, UDP would make sense for the audio data itself. As well as
> individual programs supporting it, a plug-in for Jack could also be
> written to use it.
>
> 2. Define and produce an open-source digital audio system. I am fearful
> that a proprietary system will eventually become the standard, and that
> isn't in keeping with ham spirit (IMNSHO). I'm sure we can find an
> adequate open-source codec (Speex?) and cross platform libraries exist
> so that producing software for all of the major platforms would be
> relatively straightforward.
>
> I would happily help with such projects, and surely there must be some
> developers out there that want to contribute to moving SDRs and amateur
> radio in general, forward.
>
> Comments please.
>
> Jonathan   ON/G4KLX
>
>
>
>
>  
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