[arm-allstar] CW timing question: tomorse program

David McGough kb4fxc at inttek.net
Sat Apr 30 12:25:50 EST 2016


For anyone want to try out tomorse, here is how to get, compile and 
install it for now:

login as root and run (cut and paste should work!):

wget https://raw.githubusercontent.com/mathuin/tomorse/master/tomorse.c
gcc  -O3 tomorse.c -o tomorse -lm -lsndfile
mv tomorse /usr/local/bin


73, David KB4FXC

On Sat, 30 Apr 2016, Tom Whiteside via arm-allstar wrote:

> Thanks for the comments on this and the cool work around!   I'm so happy
> with my arm-allstar repeaters and appreciate the work and support you guys
> do!
> 
> 73 Tom N5TW
> 
> -----Original Message-----
> 
> Message: 2
> Date: Fri, 29 Apr 2016 14:06:43 -0400 (EDT)
> From: David McGough <kb4fxc at inttek.net>
> To: Tom Whiteside via arm-allstar <arm-allstar at hamvoip.org>
> Subject: Re: [arm-allstar] CW timing question
> Message-ID:
> 	<Pine.LNX.4.44.1604291344430.12264-100000 at goliath.inttek.net>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
> 
> 
> Hi Tom,
> 
> I've never found the software generated CW to be a "precision" format.  
> Depending of the hardware combo it can be slow, fast or nervous! It was
> plain Schizo on one of my old ACID boxes from yesteryear!  LOL ....On
> RPi2/RPi3/BBB hardware, it is typically fairly well behaved and I believe
> adequate to satisfy the ID requirements. The timing is a compiled parameter,
> requiring a re-compile to adjust.
> 
> Personally, I recommend just using a pre-recorded CW file for high-quality
> results. That's really easy to do, using commands like:
> 
> echo "DE KB4FXC RPT" | tomorse -c 24 -s 20 > kb4fxc-rpt.wav sox
> kb4fxc-rpt.wav -c 1 -r 8000 -v 0.25  kb4fxc-rpt-8kpcm.wav resample -ql
> 
> Unfortunately, the tomorse program isn't installed in our current ARM
> codebase (perhaps in the next release?).  The source code is very small and
> available here:
> 
> https://github.com/mathuin/tomorse/blob/master/tomorse.c
> 
> 
> 73, David KB4FXC
> 
> 
> _______________________________________________
> 
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> 
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> 



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