[L2Ork-dev] Bug with high pass and band pass filters

[Gilberto Agostinho]

Do you mean the object __[spectrogram~]__ in that patch of mine? That's 
the only abstraction being used there. But It's possible to _hear_ the 
problem with some of the filters (particularly with a narrow band pass: 
if you make a glissando upwards, you can hear that it stops to "move" at 
around 12 kHz).

On 27/01/15 14:29, Ivica Bukvic wrote:
>
> FWIW, you may also want to check the accuracy of abstractions you are 
> using.
>
> On Jan 26, 2015 8:19 AM, "Gilberto Agostinho" 
> <gilbertohasnofb at googlemail.com 
> <mailto:gilbertohasnofb at googlemail.com>> wrote:
>
>     Small update: all these bugs are also present in pd vanilla 0.46.5.
>
>     On 26/01/15 13:05, Gilberto Agostinho wrote:
>
>         Hi Ico,
>
>         I just compiled pd vanilla 0.45.4 and I can confirm the bug is
>         also present there. I contacted the user who reported it to be
>         an extended only bug to know if he is sure about that and I
>         also asked him to test my patch in his computer. If it turns
>         out he was wrong about vanilla's filters being bug free (which
>         is the very likely scenario), I will contact Miller about it
>         and also report the bug at sourceforge. I will let you know
>         about it as well.
>
>         Take care,
>         Gilberto
>
>         On 26/01/15 05:28, Ivica Ico Bukvic wrote:
>
>             Forgot to mention, svf~ acts the same way in your patch.
>             Are you sure everything works as expected in the
>             abstractions you're using?
>
>             Also, have you checked with Miller and if so, what was his
>             response?
>
>             Best,
>
>             Ico
>
>             On 01/25/2015 11:24 PM, Ivica Ico Bukvic wrote:
>
>                 Thanks, Gilberto. Even with the d_filter.c being
>                 essentially synonymous with pd vanilla (latest
>                 version), the problem apparently persists. I am not
>                 sure why. Essentially, the behavior is the same in
>                 both the latest version of pd vanilla and the one we
>                 currently have in pd-l2ork. Did you see it behave
>                 differently in vanilla? If so, what version were you
>                 using and can you please create a video of that
>                 version running the same patch?
>
>                 Best,
>
>                 Ico
>
>                 On 01/24/2015 08:47 PM, Gilberto Agostinho wrote:
>
>                     Hi Ico,
>
>                     Thanks for the quick fixes, I will be happy to
>                     have a look on it. The only thing is I never
>                     compiled pd-l2Ork from source (I only used debian
>                     packages made by others for it), and on my first
>                     try I got some error messages. I am travelling the
>                     whole day tomorrow so I am a bit busy now to try
>                     figuring out what I am doing wrong, but I can
>                     certainly do this once I get home. However, I
>                     prepared a simple patch that can be used to test
>                     the filters, together with a video of the current
>                     behaviour with my build:
>
>                     https://www.dropbox.com/sh/m4vsko1th5ppgnw/AABWywJqu88_ZEdp_pk3yQdda?dl=0
>
>                     http://youtu.be/5nIJIWhqusk
>
>                     Take care,
>                     Gilberto
>
>                     On 24/01/15 21:11, Ivica Ico Bukvic wrote:
>
>                         Gilberto,
>
>                         I just committed experimental fix into git.
>                         Can you please test and report if this is now
>                         fixed?
>
>                         Best,
>
>                         Ico
>
>                         On 01/22/2015 01:12 PM, Gilberto Agostinho wrote:
>
>                             Hello all,
>
>                             Today an user discovered a bug with the
>                             high and bang pass filters in Pd
>                             0.43.4-extended and the same bug is
>                             present in Pd-l2Ork. The same user informs
>                             that Pd vanilla 0.45.4 does not display
>                             these bugs.
>
>                             In case you want to have a look on this
>                             issue, here is his bug ticket:
>                             https://sourceforge.net/p/pure-data/bugs/1187/
>                             And here is the thread where this was
>                             discussed:
>                             http://forum.pdpatchrepo.info/topic/8967/highpass-hip-not-working-as-expected
>
>                             Best,
>                             Gilberto Agostinho
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>
>
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