[PD] lop~ and hip~ difference equations

[Dario Sanfilippo]

Thank you so much for your answer, Joe and Alexandre.

You're right, Joe. I was actually referring to hip~ when talking about the
impulse response, indeed hip~ is one-pole and one-zero. It might be good to
specify it in the help file.

What formula would you use for the coefficients of rpole~ and rzero~ to
implement it?

Cheers,
Dario



On 18 February 2016 at 20:27, Alexandre Torres Porres <porres at gmail.com>
wrote:

> let me share some patches too.
>
> as said: lop~ is not the same as rpole~ but is possible to be implemented
> using rpole~, hip~ can be implemented with rpole~ and rzero~
>
> my patches show the difference equations and all, they're in portuguese,
> and part of my computer music class examples available here
> <https://sites.google.com/site/porres/Live%20Electronics%20%28EL%20Locus%20Solus%29%20-%20Porres.zip?attredirects=0&d=1>
>
> cheers
>
> 2016-02-18 14:32 GMT-02:00 Joe White <white.joe4 at gmail.com>:
>
>> Hey Dario,
>>
>> [lop~] can be implemented with just an [rpole~], did you make sure to set
>> the coefficients correctly? I've attached an example patch to implement
>> [lop~].
>>
>> [hip~] is an [rpole~] and [rzero~] in series. You can find the
>> coefficients in the source code.
>>
>> Cheers,
>> Joe
>>
>> On 18 February 2016 at 14:59, Dario Sanfilippo <
>> sanfilippo.dario at gmail.com> wrote:
>>
>>> Hello, list.
>>>
>>> Do you know what the difference equations of [lop~] and [hip~] are?
>>>
>>> Just hoping that one of you has a quick answer, otherwise I'll try
>>> figuring it out by looking at the code.
>>>
>>> Anyway, they don't seem to be the same as [rpole~] as the impulse
>>> response is different.
>>>
>>> Thanks,
>>> Dario
>>>
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