How to do a one pole High-pass filter
Hello,
I want to know how to do a one pole high-pass filter
in Max/MSP...
Thanks.
When you insert an new object, you are presented with several
categories on the left side of the box that pops up and objects on the
right. There is a category "MSP Filters" that will get you started.
Keith
On 10/5/07, Cunha Claudio wrote:
>
> Hello,
>
> I want to know how to do a one pole high-pass filter
> in Max/MSP...
>
> Thanks.
> --
> C.Cunha
>
--
Keith Manlove
(512) 825-9176
keithmanlove@gmail.com
I've see the MSP Filters but there is not a one pole high-pass filter....
right... forgot about that.
On 10/5/07, Cunha Claudio wrote:
>
> I've see the MSP Filters but there is not a one pole high-pass filter....
> --
> C.Cunha
>
--
Keith Manlove
(512) 825-9176
keithmanlove@gmail.com
Hello,
Maybe this can work (sorry, not tested) :
I think onepole is a lowpass filter
You should use filtercoeff in combination with biquad, that will offer you many types of filters.
Also, I don't like the sound of any of the internal max filters and have fallen in love with the 2up.svf~ external, look on maxobjects.com
Onepole is a lowpass filter, but if you subtract its output from the
original signal you will have a highpass filter.
Highpass = original signal - lowpass
Peter McCulloch
On 6 Oct 2007, at 04:18, Peter McCulloch wrote:
> Onepole is a lowpass filter, but if you subtract its output from
> the original signal you will have a highpass filter.
Really? I thought there was always a few samples' worth of latency in
any filter.
-- N.
Nick Rothwell / Cassiel.com Limited
www.cassiel.com
www.myspace.com/cassieldotcom
www.loadbang.net
I know there's a right answer to this, but here are at least some
observations from the test patch:
Delaying the input by one sample accentuates the highpass effect, but
shows a boost as the cutoff gets close to half the Nyquist frequency.
(1 sample delay combined with itself = comb filter...) If the delay is
set to 0, everything above the cutoff frequency is appropriately
passed, so it looks like the delay is actually not necessary, though
some of the comb filtering effects that it could introduce might be
useful in accentuating the effect. (though presumably not accurate...)
Anyways, easier still is to just use hp1~ included in the bonus
externals.
Any DSP gurus care to weigh in?
www.petermcculloch.com
Nick Rothwell wrote:
>
> On 6 Oct 2007, at 04:18, Peter McCulloch wrote:
>
>> Onepole is a lowpass filter, but if you subtract its output from the
>> original signal you will have a highpass filter.
>
> Really? I thought there was always a few samples' worth of latency in
> any filter.
The simplest of all possible lp filters y[k] = x[k] + x[k-1] has 0.5
samples' delay across the board:
--
Owen
bonus externals?
Yup. They're in the Pluggo support folders after you install pluggo.
For me it's:
/Library/Application Support/C74 Plug-in Support/Pluggo
Support/bonus-externs
highpass, lowpass, snapshotting, etc.
Cycling '74: any news on whether these will be transitioning over in
Max 5?
Peter McCulloch