[PD] could vanilla borrow iemlib's hi pass filter recipe?

cyrille henry ch at chnry.net
Mon Oct 17 18:36:29 CEST 2016

It was updated for 0.44, so it's not a correction of the bug Katja pointed (in the 0.47)

The updated is describe in hip~ help file as follow :

COMPATIBILITY NOTE: in Pd versions before 0.44, the high-frequency output gain was incorrectly greater than one (usually only slightly so, but noticeably if the cutoff frequency was more than 1/4 the Nyquist frequency). This problem was fixed INCORECTLY in pd 0.44-0 thoguh 0.44-2, and is now hopefully fixed since Pd 0.44-3. To get the old (0.43 and earlier) behavior, set "compatibility" to 0.43 in Pd's command line or by a message:

I think more information can be found in this mailing list archive.

I just wanted to point that this filter can be update while keeping compatibility with old patch (since it already have been done few years ago).


Le 17/10/2016 à 18:06, Ivica Ico Bukvic a écrit :
> On 10/17/2016 8:47 AM, cyrille henry wrote:
>> they have been recently updated (0.44). Many patchs rely on the old sound they deliver, this is achieved via the compatibility flag.
>> (see help file).
> Updated as in fixed the bugs pointed out here or if not, what was updated in them?
> Best,
> Ico
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