Re: terminate routine

[Przemek Klosowski]

On 2/22/19 6:23 AM, Herr Oswald wrote:
> Hello,
>
> a dear friend of mine (who is familiar with matlab) wrote a few lines
> to analyse tempo variations in musical recordings.
>
> One problem he could not get around is how to terminate the routine. At
> present this is solved with a timeout of 10s.
>
> When started, the routine writes time stamps into an array whenever a
> key is pressed. What we now need is a handle to terminate the process
> by a special key with the contents of the array preserved - ctrl-C or
> ctrl-D seem not to work.

I think that you are capturing the tempo by hitting a key while 
listening to the music, and want to terminate the process when the music 
stops---am I right? If so, could you just look at the last character and 
quit when you see something like a 'q'?

while ((a=kbhit()) != 'q') ; coll(end+1) = time; end

> This is the code:
>
> <raw>f=figure;
> pause(0.05);
> set(f,'Position',[1 1 2 2]);
> time=0;
> coll=[];
> tic;
> while time<10
>      waitforbuttonpress;
>      time=toc;
>      tic;
>      coll=[coll time];
> end
> coll
> col=60./coll;
> close(f);
> plot(col(1:end-1))</raw>
>
> We would be very grateful for a brief hint.
>
> Cheers,
> Wolf