11 Apr
2011
11 Apr
'11
4:42 p.m.
Hi Mike,
Forwarding this to the list where users and developers might be able to assist.
Hope this helps!
Best wishes,
Ico
-----Original Message-----
From: Michael Van [mailto:m_vanwagner@yahoo.com]
Sent: Saturday, April 09, 2011 12:44 PM
To: ico(a)linuxaudio.org
Subject: Frequency Space Editors in Linux
Hello Linux Audio,
I just wanted to find out if anyone know of any Linux programs that do sophisticated noise
removal from recordings, like the frequency space editing process of Windows programs,
Adobe Audition or Cool Edit. I wondered if there is a plugin for Audacity that might do
it.
I need to use something other than standard noise sample removal plugins because the
crackle is only present when the music is playing, not present during quiet stretches.
Thanks,
Mike
11 Apr
11 Apr
5:14 p.m.
It depends on what you need to do precisely.
To be clear, the frequency dependant functionality of the noise removal in
the windows programs mentioned, only appeared in Adobe Audition (1.5 I
believe) after Adobe had purchased Cool Edit from Syntrillium(sp?). Before
that Cool Edit had used only a sampling based process. And really their
frequency based process is only a noise reduction process IIRC, meaning you
essentially remove that frequency range for that period of time, I think it
is a bit smarter than that, but the basic concept is there.
Al this being said, if there is a crackle, there are some specific
algorithms that exist that are _not_ the broadband noise reduction that you
seem to be looking for(In other words are specifically for declicking
audio), that may be of more benefit. However in all these areas of
restoration, Linux is sorely lacking. You can try GWC, but I was never
impressed by it or Audacity for restoration work. Sadly if you are
depending on restorative work, your best bet is either to use another
platform at this time, either another OS or via realtime hardware based
solutions like CEDAR if you can afford it. Alternatively you can attempt to
run other plugins/software via WINE on Linux, whcih I have done in the past
with mixed results.
But really to my knowledge there are no good native audio restoration tools
on Linux. I am currently using the WaveARTS MR Suite on OS X for this work
myself, though since it is machine based authorization(not iLok), and
several of their plugins do run on the receptor hardware, it might be
worthwhile to try to run it via ArdourVST/Wine and see if it can be run on
Linux. This is on my TODO list as I slowly progress to Linux again full
time for production work, but is not something i have had time to do yet.
Seablade
On Mon, Apr 11, 2011 at 10:42 AM, Ivica Ico Bukvic <ico(a)vt.edu> wrote:
Hi Mike,
Forwarding this to the list where users and developers might be able to
assist.
Hope this helps!
Best wishes,
Ico
-----Original Message-----
From: Michael Van [mailto:m_vanwagner@yahoo.com]
Sent: Saturday, April 09, 2011 12:44 PM
To: ico(a)linuxaudio.org
Subject: Frequency Space Editors in Linux
Hello Linux Audio,
I just wanted to find out if anyone know of any Linux programs that do
sophisticated noise removal from recordings, like the frequency space
editing process of Windows programs, Adobe Audition or Cool Edit. I
wondered if there is a plugin for Audacity that might do it.
I need to use something other than standard noise sample removal plugins
because the crackle is only present when the music is playing, not present
during quiet stretches.
Thanks,
Mike
_______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-dev
9:43 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
Hi,
-------- Original Message --------
Subject: [LAU] FW: Frequency Space Editors in Linux
From: Ivica Ico Bukvic <ico(a)vt.edu>
To: linux-audio-user(a)lists.linuxaudio.org,
linux-audio-dev(a)lists.linuxaudio.org
CC: m_vanwagner(a)yahoo.com
Date: 11/04/2011 16:42
Hi Mike,
Forwarding this to the list where users and developers might be able to assist.
Hope this helps!
Best wishes,
Ico
-----Original Message-----
From: Michael Van [mailto:m_vanwagner@yahoo.com]
Sent: Saturday, April 09, 2011 12:44 PM
To: ico(a)linuxaudio.org
Subject: Frequency Space Editors in Linux
Hello Linux Audio,
I just wanted to find out if anyone know of any Linux programs that do sophisticated
noise removal from recordings, like the frequency space editing process of Windows
programs, Adobe Audition or Cool Edit. I wondered if there is a plugin for Audacity that
might do it.
Try Gramofile [1] or Gnome Wave Cleaner [2]. Results will very a lot
depending on the source material. There is a noise removal plugin of
Audacity, but IMHO it's not great, but let your ears judge.
Good luck,
Lorenzo.
[1] http://www.opensourcepartners.nl/~costar/gramofile/
[2] http://gwc.sourceforge.net/
I need to use something other than standard noise
sample removal plugins because the crackle is only present when the music is playing, not
present during quiet stretches.
Thanks,
Mike
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
11:39 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, Apr 11, 2011 at 09:43:45PM +0200, Lorenzo Sutton wrote:
Try Gramofile [1] or Gnome Wave Cleaner [2].
Both seem to be quite old and it's not clear at all if they
are still being developed or maintained.
Results will very a lot
depending on the source material. There is a noise removal plugin of
Audacity, but IMHO it's not great, but let your ears judge.
It's not clear at all from the original post what kind of 'noise'
has to be removed. If it is _noise_ (a continuous broadband random
signal), then frequency domain methods should be able to reduce it.
If it is _crackle_ (short spikes) then time domain methods will have
a better chance. Also the remark that the problem only occurs 'while
the music is playing' adds a bit to the puzzle...
It would help to know the origin of the the 'noise' or to have a
sample of it.
Ciao,
--
FA
12 Apr
12 Apr
1:09 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, Apr 11, 2011 at 5:39 PM, Fons Adriaensen <fons(a)linuxaudio.org>wrote;wrote:
It would help to know the origin of the the 'noise' or to have a
sample of it.
Agreed in as far as helping to address it, however it still leaves the fact
that there just aren't many, if any, good restoration solutions on Linux so
even so there is only so much I can suggest, unless you know of some
solutions I don't?
Seablade
Who honestly would like some good restoration solutions on Linux.
9:05 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, 2011-04-11 at 19:09 -0400, Thomas Vecchione wrote:
On Mon, Apr 11, 2011 at 5:39 PM, Fons Adriaensen <fons(a)linuxaudio.org>
wrote:
It would help to know the origin of the the 'noise' or to have
a
sample of it.
Agreed in as far as helping to address it, however it still leaves the
fact that there just aren't many, if any, good restoration solutions
on Linux so even so there is only so much I can suggest, unless you
know of some solutions I don't?
Seablade
Who honestly would like some good restoration solutions on Linux.
If your bike has a flat tyre, there's a good chance it'll stay flat
until you fix it.
You either need to break out some code, or some cash.
Gordon MM0YEQ
9:16 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
Excerpts from Gordon JC Pearce's message of 2011-04-12 09:04:46 +0200:
On Mon, 2011-04-11 at 19:09 -0400, Thomas Vecchione
wrote:
Does someone have some code to fix bikes? The symptoms are flat tires,
shifty gears and funky noises.
On Mon, Apr 11, 2011 at 5:39 PM, Fons Adriaensen <fons(a)linuxaudio.org>
wrote:
It would help to know the origin of the the 'noise' or to have
a
sample of it.
Agreed in as far as helping to address it, however it still leaves the
fact that there just aren't many, if any, good restoration solutions
on Linux so even so there is only so much I can suggest, unless you
know of some solutions I don't?
Seablade
Who honestly would like some good restoration solutions on Linux.
If your bike has a flat tyre, there's a good chance it'll stay flat
until you fix it.
You either need to break out some code, or some cash.
Gordon MM0YEQ 
9:35 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Tuesday 12 April 2011, at 09.16.36, Philipp Überbacher
<hollunder(a)lavabit.com> wrote:
[...]
Unfortunately, the closest I have is the custom dashboard software I hacked
for my race car. :-)
--
//David Olofson - Consultant, Developer, Artist, Open Source Advocate
.--- Games, examples, libraries, scripting, sound, music, graphics ---.
| http://consulting.olofson.net http://olofsonarcade.com |
'---------------------------------------------------------------------'
If your bike
has a flat tyre, there's a good chance it'll stay flat
until you fix it.
You either need to break out some code, or some cash.
Gordon MM0YEQ
Does someone have some code to fix bikes? The symptoms are flat tires,
shifty gears and funky noises. 
10:19 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Tuesday 12 April 2011 09:16:36 Philipp Überbacher wrote:
Excerpts from Gordon JC Pearce's message of
2011-04-12 09:04:46 +0200:
I don't have code to fix tires. But some years ago I decided that its cheaper
(and better for my health) to pay a bike-shop 10€ to fix the flat tire instead
of me spending an afternoon, getting my hands dirty, my mind angry and my bike
broken...
Why not improve gwc? Last I looked, the code was open source. So even if the
original author has no further interest in updating, "fixing" and improving it,
that doesn't keep you from doing exactly that. Or from you setting some bounty
for someone else to do the coding job.
Or you can just wait, lament on the state of noise-removal tools on linux and
keep on paying win-developers to do this...
Have fun,
Arnold
On Mon, 2011-04-11 at 19:09 -0400, Thomas
Vecchione wrote:
Does someone have some code to fix bikes? The symptoms are flat tires,
shifty gears and funky noises. On Mon, Apr 11, 2011 at 5:39 PM, Fons Adriaensen
<fons(a)linuxaudio.org>
wrote:
It would help to know the origin of the the 'noise' or to have
a
sample of it.
Agreed in as far as helping to address it, however it still leaves the
fact that there just aren't many, if any, good restoration solutions
on Linux so even so there is only so much I can suggest, unless you
know of some solutions I don't?
Seablade
Who honestly would like some good restoration solutions on Linux.
If your bike has a flat tyre, there's a good chance it'll stay flat
until you fix it.
You either need to break out some code, or some cash.
Gordon MM0YEQ
12:06 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Tue, Apr 12, 2011 at 3:04 AM, Gordon JC Pearce <gordonjcp(a)gjcp.net>wrote;wrote:
You either need to break out some code, or some cash.
Heh if I could code DSP processing I would, however I never even took Calc,
so for the most part I am way out of my league there. I should get my wife
to teach me sometime. Cash on the other hand is doable(Well maybe not at
this very moment, dang US taxes), but not at the level where I can sponsor
the development of that code solo, otherwise I would have(And have even
mentioned it before though not on mailing lists;)
Seablade
2:12 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On 04/12/2011 07:39 AM, Fons Adriaensen wrote:
Also the remark that the problem only occurs
'while
the music is playing' adds a bit to the puzzle...
sounds like an intermittent cable or channel strip fault to me; that
would be program dependant. if so, there'll be distortions resulting in
the audio that would be difficult if not impossible to 'repair'.
often-times these 'repairs' only create greater awareness of the damage
elsewhere in the program material anyway and lead to diminishing returns.
GWC is the only program I've ever used successfully under linux; and it
was as 'good' as anything else i've used on other platforms - tho I'm
not a great fan of any such dsp. Important to set it up properly
however, but that's the case with all such programs - not for the novice
really.
best results can take much longer than the program is actually worth ;)
g.
2:18 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, Apr 11, 2011 at 9:11 PM, Geoff Beasley <geoff(a)laughingboyrecords.com
wrote:
GWC is the only program I've ever used
successfully under linux; and it was
as 'good' as anything else i've used on other platforms
Sadly I would strongly disagree. The results I can get from what are fast
becoming basic tools on other platforms outperform anything I have been able
to achieve on Linux by a fairly wide margin including GWC. Not to mention
the benefit of running such restoration in realtime in Ardour as opposed to
GWC:)
Seablade
2 May
2 May
1:03 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, 11 Apr 2011 20:18:18 -0400
Thomas Vecchione <seablaede(a)gmail.com> wrote:
On Mon, Apr 11, 2011 at 9:11 PM, Geoff Beasley
<geoff(a)laughingboyrecords.com
Are you saying Ardour has good restoration functionality built-in? If
so, would you care to give a hint/link on how to use it?
But you're probably talking about some Windows-only VST plugin or
such... :-/
wrote:
GWC is the only program I've ever used
successfully under linux; and it was
as 'good' as anything else i've used on other platforms
Sadly I would strongly disagree. The results I can get from what are fast
becoming basic tools on other platforms outperform anything I have been able
to achieve on Linux by a fairly wide margin including GWC. Not to mention
the benefit of running such restoration in realtime in Ardour as opposed to
GWC:) 
1:18 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, May 2, 2011 at 7:03 AM, Johannes Kroll <jkroll(a)lavabit.com> wrote:
Are you saying Ardour has good restoration
functionality built-in? If
so, would you care to give a hint/link on how to use it?
Ardour has almost no DSP functionality built in of any kind. Beyond
gain, panning, normalization and phase inversion, Ardour doesn't
attempt to provide any kind of signal processing functionality.
3:01 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Mon, May 2, 2011 at 7:03 AM, Johannes Kroll <jkroll(a)lavabit.com> wrote:
Are you saying Ardour has good restoration
functionality built-in? If
so, would you care to give a hint/link on how to use it?
But you're probably talking about some Windows-only VST plugin or
such... :-/
As Paul mentioned, Ardour has no such functionality, and honestly IMO
is far beyond the scope of Ardour. What Ardour DOES do however is
host plugins, and there are realtime noise removal plugins.
Technically what I use is on OS X in AU format, but on Linux yes I
would be dealing with VST versions through WINE. However since this
is from a manufacturer that some of its plugins are on Receptor, I
would have decently high hopes of it working and intend to test just
that sometime in the hopefully not so distant future.
Seablade
12 Apr
12 Apr
10:12 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
Fons Adriaensen wrote:
My interpretation for noise in this case was the plain English one of
"(a) sound, especially when it is not wanted, unpleasant or loud" [1]
(which is of course disputable) - :)
I am guessing the noise occurring while the music plays may be a result
of some noise gate applied to the source at some stage. Mike may shed
some light on that, maybe making available a section of the material
he'd like to clean...
It occurs to me that I have noticed a similar effect, but the other way
round, in some older films (especially older ones) which were dubbed to
Italian: when no one is speaking there is some background "noise" (e.g.
a street or simply some broadband signal), which dissapears when the
dubbed part comes in as if some kind of ducking was made. The
interesting thing is that the abrupt disappearing and reappearing of the
noise actually makes it more noticeable.
Lorenzo.
On Mon, Apr 11, 2011 at 09:43:45PM +0200, Lorenzo
Sutton wrote:
True. Nontheless they are the only ones
I'm aware of and have used with
a certain degree of satisfaction.
Try Gramofile [1] or Gnome Wave Cleaner [2].
Both seem to be quite old and it's not clear at all if they
are still being developed or maintained. Results will
very a lot
depending on the source material. There is a noise removal plugin of
Audacity, but IMHO it's not great, but let your ears judge.
It's not clear
at all from the original post what kind of 'noise'
has to be removed. If it is _noise_ (a continuous broadband random
signal), then frequency domain methods should be able to reduce it.
If it is _crackle_ (short spikes) then time domain methods will have
a better chance. Also the remark that the problem only occurs 'while
the music is playing' adds a bit to the puzzle...
It would help to know the origin of the the 'noise' or to have a
sample of it. Ciao,
[1] http://dictionary.cambridge.org/dictionary/british/noise_1
10:48 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
On Tuesday 12 April 2011 10:13:26 Lorenzo Sutton wrote:
It occurs to me that I have noticed a similar effect,
but the other way
round, in some older films (especially older ones) which were dubbed to
Italian: when no one is speaking there is some background "noise" (e.g.
a street or simply some broadband signal), which dissapears when the
dubbed part comes in as if some kind of ducking was made. The
interesting thing is that the abrupt disappearing and reappearing of the
noise actually makes it more noticeable.
Sounds as if the dubbing happened on the final audio tracks. Normally film-
makers save the audio- and speech-tracks separately to switch the language.
But when the material is old and no one saved a "karaoke"-version, the only
chance is to do nice ducking. Or use subtitles and run it in "alternative"
cinemas:-)
Have fun,
Arnold
2 May
2 May
2:23 a.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
I just recently discovered ceres3:
http://www.music.columbia.edu/~stanko/About_Ceres3.html
have you heard of it?
Jeremy
On Mon, Apr 11, 2011 at 10:42 AM, Ivica Ico Bukvic <ico(a)vt.edu> wrote:
Hi Mike,
Forwarding this to the list where users and developers might be able to
assist.
Hope this helps!
Best wishes,
Ico
-----Original Message-----
From: Michael Van [mailto:m_vanwagner@yahoo.com]
Sent: Saturday, April 09, 2011 12:44 PM
To: ico(a)linuxaudio.org
Subject: Frequency Space Editors in Linux
Hello Linux Audio,
I just wanted to find out if anyone know of any Linux programs that do
sophisticated noise removal from recordings, like the frequency space
editing process of Windows programs, Adobe Audition or Cool Edit. I
wondered if there is a plugin for Audacity that might do it.
I need to use something other than standard noise sample removal plugins
because the crackle is only present when the music is playing, not present
during quiet stretches.
Thanks,
Mike
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
1:25 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
J> I just recently discovered ceres3:
J> http://www.music.columbia.edu/~stanko/About_Ceres3.html have you
J> heard of it?
Definitely. Ceres started its life on the SGIs sometime after 1990,
with various ports for various platforms following. The ongoing
development of Ceres (and some other things) at NOTAM can be looked up
here:
http://www.notam02.no/web/category/research-and-development/software/?lang=…
Btw, Henrik Sundt at NOTAM has been working for some time with 'swash' -
a program which does lots of spectral-domain work in sounds, amongst
other things removing noise intelligently. It does some really
brilliant work.
Try email him at <hsundt(a)notam02.no> for more info, and perhaps a
version to try out.
1:30 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
a> Try email him at <hsundt(a)notam02.no>
Sorry, that should read hsundt AT notam02.no
1:48 p.m.
New subject: [LAU] FW: Frequency Space Editors in Linux
andersvi(a)notam02.no wrote:
J> I just recently discovered ceres3:
J> http://www.music.columbia.edu/~stanko/About_Ceres3.html have you
J> heard of it?
Definitely. Ceres started its life on the SGIs sometime after 1990,
with various ports for various platforms following...
At one time I was rather heavily involved in the original Linux ports of
the NoTAM software. I've worked quite a lot with Ceres, Mix, Bio, and
the others linked in Anders' message.
Kjetil's current version of Ceres appears to have consolidated most of
the goodies found in previous ports.
Btw, I've used Ceres for some noise reduction, just getting rid of some
obhvious artifacts. Most of the time I've used it as a sound creation
utility, its Transforms are certainly some of the weirdest I've used. :)
Thanks for the link, Anders, it's nice to see that the older NoTAM stuff
still lives on.
Best,
dp
4906
days inactive
4927
days old
linux-audio-dev@lists.linuxaudio.org
21 comments
14 participants
participants (14)
-
andersvi＠notam02.no -
Arnold Krille -
Dave Phillips -
David Olofson -
Fons Adriaensen -
Geoff Beasley -
Gordon JC Pearce -
Ivica Ico Bukvic -
Jeremy Salwen -
Johannes Kroll -
Lorenzo Sutton -
Paul Davis -
Philipp Überbacher -
Thomas Vecchione