[L2Ork-dev] Bug with high pass and band pass filters
Gilberto Agostinho
gilbertohasnofb at googlemail.com
Thu Jan 29 22:29:34 UTC 2015
Thanks a lot for all the help, Ico, and sorry for my slow answers these
days. I reported these bugs to the list with another video showing the
problem, so hopefully they will have a look on it soon.
Take care,
Gilberto
On 29/01/15 06:16, Ivica Ico Bukvic wrote:
> Thanks for the clarification. In that case this bug should be reported
> upstream to Miller et al.
>
> On 1/27/2015 10:39 AM, Gilberto Agostinho wrote:
>> 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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>
> --
> Ivica Ico Bukvic, D.M.A.
> Associate Professor
> Computer Music
> ICAT Senior Fellow
> DISIS, L2Ork
> Virginia Tech
> School of Performing Arts – 0141
> Blacksburg, VA 24061
> (540) 231-6139
> ico at vt.edu
> www.performingarts.vt.edu
> disis.music.vt.edu
> l2ork.music.vt.edu
>
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