[PD] headroom in Pd

[Alexandre Torres Porres]

here's the deal, if I have a square wave in Pd running at 1 -1 peak to
peak, then you say that should be my maximum output, right?

Thing is that if I give it an extra boost (say, multiply it by 2) I
can clearly listen an increase in loudness. Hence, something in my
system is allowing some headroom to be output.

I got a macbook air from 2010 running 10.7.5... if Pd is not
responsible for this, maybe my hardware + Mac OS is?

here's the patch, try yourselves and tell me what you get please.

Cheers


#N canvas 653 26 257 182 10;
#X obj 79 97 dac~;
#X obj 85 41 square~ 440;
#X floatatom 125 72 5 0 0 0 - - -;
#X obj 85 70 *~;
#X connect 1 0 3 0;
#X connect 2 0 3 1;
#X connect 3 0 0 0;
#X connect 3 0 0 1;

2013/12/21, IOhannes m zmölnig <zmoelnig at iem.at>:
> On 2013-12-21 14:58, peiman khosravi wrote:
>> However, it's probably wise to clip the signal before sending it to dac~.
>> Entirely for health and safety reasons!
>
> this really depends...a clipping sine will have loads of high
> frequencies that might be equally damaging to your audience.
>
> if you want to be safe, use math to make sure that your signal won't
> exceed -1..+1 before sending to the [dac~].
>
> or use a limiter (zexy has a handy one).
>
> fgmrdsa
> IOhannes
>
>