Hi Johannes,
this is strange. I'm certainly being a dunce, but I can't see how you can get aliasing when you're already in the digital domain...?? the DAC's have reconstruction filters so there won't be any aliasing when converted to analogue either.....????!!?!?!
any hints/prods appreciated. regards,
Matt
-=-=-=-=-=-=-=-=-=-=-=-=- http://www.loopit.org/ -=-=-=-=-=-=-=-=-=-=-=-=- ----- Original Message ----- From: "Johannes Taelman" j0@advalvas.be To: "matthew jones" m.jones@signal.dra.hmg.gb Cc: "PD-List" pd-list@iem.kug.ac.at; "Martin Dupras" martin.dupras@uwe.ac.uk Sent: Friday, March 05, 2004 3:42 PM Subject: Re: [PD] band-limited square wave
Matt,
None of these methods are band-limited in any sense, and will sound aliased.
Check out Tom Schouten's creb package. I started porting it to win32, some objects work, but continued working other projects before finishing it...
j#|@
matthew jones wrote:
why not an [osc~] or [phasor~] connected to a [>~]? then bandpass
filter?
phasor is probably nicest cos you can change the 'larger than' value linearly to get pulse width modulation.
ideally you want to subtract 0.5 ([-~ 0.5]) from the result and multiply
by
two ([*~ 2]) to make it a true square wave.
Matt
----- Original Message ----- From: "Martin Dupras" martin.dupras@uwe.ac.uk
Does anyone know how to generate band-limited square waves (or other classi waeforms) in PD?
Thanks.
- martin
PD-list mailing list PD-list@iem.at http://iem.at/cgi-bin/mailman/listinfo/pd-list
Matt
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matthew jones