[L2Ork-dev] Bug with high pass and band pass filters
Ivica Ico Bukvic
ico at vt.edu
Thu Jan 29 05:16:23 UTC 2015
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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--
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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