Re: LF: RE: Todmorden receiver

[DK7FC <selberdenken@posteo.de>]

Am 30.11.2017 11:48, schrieb Paul Nicholson:
> > Can you explain what's vcat++ ?
>
> vtcat is a program in vlfrx-tools which moves signal streams
> around and maybe changes the sample format.   The ++ option
> specifies a network connection to send the stream from
> once PC to another.
>
>  http://abelian.org/vlfrx-tools/notes.html#vtcat
>
> Spectrum Lab can work with a stream sent by vtcat or vtvorbis.
I spent quite some time trying to send an uncompressed stream (raw audio 
data)  from a Raspi to a windows PC running SpecLab, without success.
From the examples it wasn't possible to learn how it is done, at least 
for me.
There is an example:

# Send data from channel 2 of buffer @raw to port 9876 on host foo,
# using 2 byte integer format, and maintain the connection
  vtcat @raw:2 ++foo,9876,i2

What means foo ???????? Must it be the IP adress of the PC where SpecLab is 
running?
Can is use any port, just a random number like 9876 or 8765 or 7654?
Don't i need to tell the firewall to let that stream pass, i.e. opening a port?

73, Stefan