In that case, since the filter is digital, it obviously can't pass ALL frequencies, so maybe an L was hacked off in protest. Or maybe it stands for ALmost all frequencies. -Chuckk On Feb 19, 2008 6:28 PM, Alex Weiss wrote: > Partev, > > I think you misunderstood Rory's question. What Rory meant was why > the opcode is written with a single L instead of two. > > Alex > > > > On Feb 19, 2008, at 5:19 PM, Partev Barr Sarkissian wrote: > > > It passes "All" frequencies, high or low (within limits), but does > > so in a way that keeps all the filter's poles and zeros lined up in > > a specific way. So, it has to do with the phase math or complex > > numbers math of filters. An Allpass has a specific math form to > > adheres to just like High-pass, Low-pass, Band-pass and Notch > > filters do. > > > > Hope that helps. More later on my lunch break, if you like. > > - Partev :-) > > > > > > > > ---------------------------------------------------------------------- > > ------------------------------ > > > > --- rorywalsh@ear.ie wrote: > > > > From: Rory Walsh > > To: csound@lists.bath.ac.uk > > Subject: [Csnd] Re: RE: alpass opcode... > > Date: Tue, 19 Feb 2008 09:38:02 +0000 > > > > Give that it's an 'allpass' filter, I would have thought 'allpass' > > would > > have been a better name. Perhaps it's something to do with the > > length of > > opcode names as Alex suggests. I'm just curious. > > > > Rory. > > > > > > Partev Barr Sarkissian wrote: > >> Could you elaborate? > >> - Partev > >> > >> --- rorywalsh@ear.ie wrote: > >> > >> From: Rory Walsh > >> To: csound@lists.bath.ac.uk > >> Subject: [Csnd] alpass opcode... > >> Date: Sat, 16 Feb 2008 18:40:20 +0000 > >> > >> Wouldn't "allpass" have been better name? > >> > >> Rory. > >> > >> > >> Send bugs reports to this list. > >> To unsubscribe, send email sympa@lists.bath.ac.uk with body > >> "unsubscribe csound" > >> > >> > >> > >> > >> _____________________________________________________________ > >> Netscape. Just the Net You Need. > >> > >> > >> Send bugs reports to this list. > >> To unsubscribe, send email sympa@lists.bath.ac.uk with body > >> "unsubscribe csound" > >> > > > > > > Send bugs reports to this list. > > To unsubscribe, send email sympa@lists.bath.ac.uk with body > > "unsubscribe csound" > > > > > > > > > > _____________________________________________________________ > > Netscape. Just the Net You Need. > > > > > > Send bugs reports to this list. > > To unsubscribe, send email sympa@lists.bath.ac.uk with body > > "unsubscribe csound" > > > > Send bugs reports to this list. > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound" > -- http://www.badmuthahubbard.com