Re: Help requested to make a train of symmetric pulse

On Tue, Jul 25, 2017 at 02:36:25PM +0200, Bengt Nilsson wrote:
> Dear all,
> 
> sox man pages are i bit overwhelming for a newbie like me, not
> surprising for such an extensive and powerful toolbox.  So I need some
> hints to get started.
> 
> I need to create a sequence of symmetric pulses, first 2ms positive,
> then 2ms negative, then 0 for 996ms, repeated for 100 seconds. 

What do you mean by pulse?  Should they contain a tone?

If not then this should get you started:
        
    sox "|sox -D -n -p trim 0 0.002 dcshift  0.9" \
        "|sox -D -n -p trim 0 0.002 dcshift -0.9" \
        "|sox -D -n -p trim 0 0.996"              \
        out.wav

Play it a 100 times:

    sox out.wav -d repeat 99

-- 
BR
Thor

------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot