I've got a project that I've put on the shelf and haven't finished. I
wanted to figure out how to create stable acoustic feedback, and I can
show that a single long-length (on the order of RT60 room
reverberation time) FIR filter can be used to equalize the acoustic
feedback path. I never succeeded in all my experiments except to
create really loud noises that I thought were going to destroy my
loudspeakers, burn down my house, etc... Perhaps other people have
been more successful with acoustic feedback.
The primary problem I found was that simple inverse and regularized
least-squares methods would produce "ringing" and non-compact
solutions that would result in instability when applied. I don't have
time to share all the math tonight, but I will help with the
"discussion" part of all this :)
Chuck
On Tue, Sep 8, 2009 at 9:25 PM, Jerome
Covington<info(a)thespacebetweenthewords.org> wrote:
> I'm interested to know who's been working with feedback, and if anyone
> has any patches they've developed, or that others have developed that
> they think is exemplary.
>
> --
> Regards,
> Jerome Covington
> Â . Â . Â . Â . Â : Â . Â . Â . Â . Â :
> "define audio development"
>
> _______________________________________________
> Pd-list(a)iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
>
Patches item #2849810, was opened at 2009-09-03 05:30
Message generated for change (Comment added) made by eighthave
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Category: None
Group: None
Status: Closed
Resolution: Accepted
Priority: 5
Private: No
Submitted By: João Pais (jmmmp)
Assigned to: Nobody/Anonymous (nobody)
Summary: Portuguese (Portugal) dictionary
Initial Comment:
Hi, here is the portuguese (Portugal) translation. As I'm not a programmer, I advise this to be reviewed by someone else.
Also, I couldn't find the place in Pd where some strings occur - if you can tell me how to find them, or send me a screenshot of them (without understanding the context isn't that easy to do an accurate translation). The following strings were not translated:
- Appearance on parent patch
- Range and size
- Match whole word only
-%s Font
- Messages
- Media
- Bring All to Front
- Sampling
- Routing
- ERROR: 'pd' never showed up, 'pd-gui' quitting!
----------------------------------------------------------------------
>Comment By: Hans-Christoph Steiner (eighthave)
Date: 2009-09-08 13:50
Message:
There is a problem with this po, you can check it by going to
pure-data/branches/pd-gui-rewrite/0.43/po and running 'make'. Basically,
there aren't enough %s pattersn in the translation, here's the error
message:
pt_pt.po:632: a format specification for argument 3 doesn't exist in
'msgstr'
msgfmt: found 2 fatal errors
----------------------------------------------------------------------
Comment By: Hans-Christoph Steiner (eighthave)
Date: 2009-09-08 13:44
Message:
I committed it, but since you have commit access, in the future just commit
directly. Here's the commit:
http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=rev&revision=122…
----------------------------------------------------------------------
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Patches item #2852073, was opened at 2009-09-04 22:29
Message generated for change (Comment added) made by eighthave
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Category: None
Group: None
>Status: Closed
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: Andras Muranyi (muranyia)
Assigned to: Nobody/Anonymous (nobody)
Summary: hu.po
Initial Comment:
Hungarian translation. Element names still in English.
----------------------------------------------------------------------
>Comment By: Hans-Christoph Steiner (eighthave)
Date: 2009-09-08 13:45
Message:
accepted with this commit:
http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=rev&revision=122…
----------------------------------------------------------------------
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Patches item #2849810, was opened at 2009-09-03 05:30
Message generated for change (Settings changed) made by eighthave
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Category: None
Group: None
>Status: Closed
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: João Pais (jmmmp)
Assigned to: Nobody/Anonymous (nobody)
Summary: Portuguese (Portugal) dictionary
Initial Comment:
Hi, here is the portuguese (Portugal) translation. As I'm not a programmer, I advise this to be reviewed by someone else.
Also, I couldn't find the place in Pd where some strings occur - if you can tell me how to find them, or send me a screenshot of them (without understanding the context isn't that easy to do an accurate translation). The following strings were not translated:
- Appearance on parent patch
- Range and size
- Match whole word only
-%s Font
- Messages
- Media
- Bring All to Front
- Sampling
- Routing
- ERROR: 'pd' never showed up, 'pd-gui' quitting!
----------------------------------------------------------------------
>Comment By: Hans-Christoph Steiner (eighthave)
Date: 2009-09-08 13:44
Message:
I committed it, but since you have commit access, in the future just commit
directly. Here's the commit:
http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=rev&revision=122…
----------------------------------------------------------------------
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Bugs item #2583821, was opened at 2009-02-10 05:36
Message generated for change (Comment added) made by nobody
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Category: puredata
Group: v0.42
Status: Open
Resolution: None
Priority: 7
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Miller Puckette (millerpuckette)
Summary: pow~ creation arg doesn't work on Windows
Initial Comment:
providing a creation argument for pow~ doesn't work.
pd-vanilla 0.42-4 on winxp
-Jonathan
#N canvas 412 274 450 300 12;
#X floatatom 181 146 5 0 0 0 - - -;
#X floatatom 271 144 5 0 0 0 - - -;
#X obj 181 115 snapshot~;
#X obj 271 115 snapshot~;
#X obj 49 68 metro 100;
#X obj 271 60 pow~;
#X obj 335 12 sig~ 4;
#X obj 49 12 loadbang;
#X obj 181 60 pow~ 4;
#X obj 180 12 sig~ 2;
#X msg 6 111 \; pd dsp 1;
#X connect 2 0 0 0;
#X connect 3 0 1 0;
#X connect 4 0 2 0;
#X connect 4 0 3 0;
#X connect 5 0 3 0;
#X connect 6 0 5 1;
#X connect 7 0 4 0;
#X connect 7 0 10 0;
#X connect 8 0 2 0;
#X connect 9 0 8 0;
#X connect 9 0 5 0;
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2009-09-08 17:23
Message:
Also, [exp~] doesn't have a right inlet, but the help file implies that it
should.
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2009-07-08 15:00
Message:
Notice that the argument is the exponent in the [pow~] object.
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2009-07-08 14:45
Message:
This bug does NOT happen in Pd-0.41.4-extended-rc4 on Windows XP Sp 3.
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2009-02-25 21:53
Message:
the same holds for [log~] and [exp~], (0.42-4 on winxp)
----------------------------------------------------------------------
Comment By: Hans-Christoph Steiner (eighthave)
Date: 2009-02-25 00:06
Message:
This bug does not happen for me on Pd-0.42-4 on Mac OS X 10.5.6/Intel. But
I can confirm it happens on Windows XP with Pd0.42-4
----------------------------------------------------------------------
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Bugs item #2853052, was opened at 2009-09-06 17:41
Message generated for change (Comment added) made by nobody
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Category: pd-extended
Group: v0.41
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: endolith (endolith)
Assigned to: Hans-Christoph Steiner (eighthave)
Summary: Cannot open files with commas in name
Initial Comment:
pd-extended on Windows cannot open files with commas in the name. It just does nothing.
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2009-09-06 21:23
Message:
probably affects all versions of pd ever, except desiredata starting with
commit#12248 today. basically it's a bug introduced in pd in order to cover
up a bigger bug that exists in all branches except desiredata, and then in
desiredata i forgot to remove the covering bug. this covering bug is called
"proc enquote" in all versions of pd that i know about.
----------------------------------------------------------------------
Comment By: endolith (endolith)
Date: 2009-09-06 17:42
Message:
Pd version 0.41.4-extended
----------------------------------------------------------------------
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Bugs item #2853052, was opened at 2009-09-06 13:41
Message generated for change (Comment added) made by endolith
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Category: pd-extended
Group: v0.41
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: endolith (endolith)
Assigned to: Hans-Christoph Steiner (eighthave)
Summary: Cannot open files with commas in name
Initial Comment:
pd-extended on Windows cannot open files with commas in the name. It just does nothing.
----------------------------------------------------------------------
>Comment By: endolith (endolith)
Date: 2009-09-06 13:42
Message:
Pd version 0.41.4-extended
----------------------------------------------------------------------
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Bugs item #2853052, was opened at 2009-09-06 13:41
Message generated for change (Settings changed) made by endolith
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Category: pd-extended
>Group: v0.41
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: endolith (endolith)
Assigned to: Hans-Christoph Steiner (eighthave)
Summary: Cannot open files with commas in name
Initial Comment:
pd-extended on Windows cannot open files with commas in the name. It just does nothing.
----------------------------------------------------------------------
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Bugs item #2853052, was opened at 2009-09-06 13:41
Message generated for change (Tracker Item Submitted) made by endolith
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Category: pd-extended
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: endolith (endolith)
Assigned to: Hans-Christoph Steiner (eighthave)
Summary: Cannot open files with commas in name
Initial Comment:
pd-extended on Windows cannot open files with commas in the name. It just does nothing.
----------------------------------------------------------------------
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Patches item #2852073, was opened at 2009-09-05 04:29
Message generated for change (Tracker Item Submitted) made by muranyia
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andras Muranyi (muranyia)
Assigned to: Nobody/Anonymous (nobody)
Summary: hu.po
Initial Comment:
Hungarian translation. Element names still in English.
----------------------------------------------------------------------
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