I don't know how to put this, an Apple Audio HW bug? Post: 302907772

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Operating Systems OS X (Apple) I don't know how to put this, an Apple Audio HW bug? Post 302907772 by wisecracker on Tuesday 1st of July 2014 04:11:35 PM

07-01-2014

Registered User

Hi Corona688...

Quote:

Actually, you could put a switch in your circuit to invert, couldn't you? To flip the secondary side of the transformer.

Absolutely except I have since found a Windows machine that does the same as the Apple gear.
The problem is that this now changes the goalposts as CygWin follows the host Windows OS and the HW it is on.
So therefore one will never know whether the single pulse generator is correct or not SO......

Now I have to assume that the person(s) experimenting with the script do(es) NOT have access to a (semi-)professional oscilloscope but DO have access to a simple multimeter.

So generate two versions of the pulse generator, one '+ve' going and the other '-ve' going named pulse1.wav and pulse2.wav respectively.
Using CCT 3, the voltage doubler, connect the multimeter across the DC output and run each one in turn. The lower voltage one will be +ve going and vice versa.

In fact the Arduino access is already a voltmeter so even a multimeter is not a requirement...

Neat eh! ;o)

Version 0.30.xx to be released soon...

wisecracker

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allegro_exit

allegro_exit(3alleg4)						  Allegro manual					     allegro_exit(3alleg4)

NAME

       allegro_exit - Closes down the Allegro system.

SYNOPSIS

       #include <allegro.h>

       void allegro_exit();

DESCRIPTION

       Closes  down  the Allegro system. This includes returning the system to text mode and removing whatever mouse, keyboard, and timer routines
       have been installed. You don't normally need to bother making an explicit call to this function, because allegro_init() installs it  as	an
       atexit() routine so it will be called automatically when your program exits.

       Note  that  after  you  call  this function, other functions like destroy_bitmap() will most likely crash. This is a problem for C++ global
       destructors, which usually get called after atexit(), so don't put Allegro calls in them. You can write	the  destructor  code  in  another
       method which you can manually call before your program exits, avoiding this problem.

SEE ALSO

       install_allegro(3alleg4),    allegro_init(3alleg4),    destroy_bitmap(3alleg4),	  ex3d(3alleg4),    exscn3d(3alleg4),	exswitch(3alleg4),
       exxfade(3alleg4), exzbuf(3alleg4)

Allegro 							   version 4.4.2					     allegro_exit(3alleg4)