Could aliasing be avoided by using a multi-pole low pass filter at nyquist before sending the signal to the dac?
~Kyle On 3/5/07, Frank Barknecht <[EMAIL PROTECTED]> wrote: > Hallo, > Denis Trapeznikoff hat gesagt: // Denis Trapeznikoff wrote: > > > 2007/3/2, hard off <[EMAIL PROTECTED]>: > > >use this construction: > > > > > >[phasor~] > > >| > > >| [r arraylength] > > >| | > > >[*~ ] > > >| > > >[tabread4~ arrayname] > > > > > > > > >where, "arraylength" is the value obtained from the outlet of > > >[soundfiler] when you load your sample. > > > > > What about aliasing? > > Aliasing will happen as usual. > > Now it depends on the content of the "arrayname" table. If > "arrayname" is "const 0", you get no aliasing of course, if it > contains one period of a sine wave, you have a construct like [osc~] > and you will get aliasiang starting at phasor~ frequency = Nyquist = > SR/2. If "arrayname" contains two periods of a sine, it's like playing > an [osc~] with two times the [phasor~] frequency so you start to alias > at a phasor~ frequency of 0.5 Nyquist and so on for arbitrary signals. > > Ciao > -- > Frank Barknecht _ ______footils.org_ __goto10.org__ > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > -- http://theradioproject.com http://perhapsidid.blogspot.com (((())))(()()((((((((()())))()(((((((())()()())()))) (())))))(()))))))))))))(((((((((((()()))))))))((()))) ))(((((((((((())))())))))))))))))))__________ _____())))))(((((((((((((()))))))))))_______ ((((((())))))))))))((((((((000)))oOOOOOO _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
