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 Forum index » Advanced Topics » Additional Software (PETs, n' stuff) » Multimedia
LADSPA plugin audio effects
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Joined: 10 Mar 2010
Posts: 3778
Location: Ontario

PostPosted: Sat 17 Nov 2012, 15:22    Post_subject:  LADSPA plugin audio effects  

LADSPA plugin effects for mhwaveedit and Audacity sound editors

Warning---> Most versions of mhwaveedit don't support LADSPA
plugins. An exception is the version that Pemasu is currently using in

.... and I have made a mhwaveedit pet package for Barry Kauler's
Precise and Slacko that supports plugins

There are nice flange effects and change of speed effects Laughing

Instructions: just click on LADSPA plugin package to install.
If you have a version of mhwaveedit that recognizes plugins then you
will see many more effects are listed at bottom of effects list.
The FFTW package is optional. It is apparently needed for a couple of
effects(i.e. scaling) but it's not all that important, so I suggest leaving
it out.

Description  an alternate selection of plugins

Filename  tap-plugins-0.7.2.pet 
Filesize  76.89 KB 
Downloaded  557 Time(s) 

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Joined: 17 Jul 2011
Posts: 428
Location: Greece

PostPosted: Sun 18 Nov 2012, 05:21    Post_subject:  

Nice!! Smile
I 'm a sound engineer and i have to use Windows on the studio computer. Evil or Very Mad
I 'd really like to try more open-source audio apps,maybe try a full Puppy sound distro...

Christos Koulaxizis
Woof woof from Greece...

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Joined: 23 May 2010
Posts: 2502
Location: near here

PostPosted: Fri 23 Nov 2012, 10:29    Post_subject:  

Nice work, will definitely look at this when my audio computer is fixed ; -)
helping Wiki for help | IF SendSpace link = "dead" THEN PM me ("up file to http://meownplanet.net/")
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Joined: 10 Mar 2010
Posts: 3778
Location: Ontario

PostPosted: Sat 24 Nov 2012, 15:32    Post_subject:  

I found more plugins!!!

The Tap-plugins are excellent and easy to use
but I noticed that the sound volume is low in the output file.
I have to use 'nomalize' after completing the effect to boost
the sound to an acceptable level.

The Caps-plugins I found accidentally in Slacko distribution.
This is rather strange since the version of mhwaveedit in
Slacko doesn't recognize plugins. Perhaps they were intended to
be used for Audacity. The solution is to upgrade mhwaveedit to
my version here....

The Caps plugins are excellent and don't have the problem
with sound volume that the Taps plugins have.

I tested on a simple mono voice sound file and here are some

C* Plate ---> excellent reverb effect
C* Autowah ---> set f to 500 and convert to a telephone voice
C* StereoChorusI ---> good echo
C* Plate2x2 ---> set Blend to high to get more echo
C* JVRev ---> excellent dream like echo effect!!
C* Click ---> makes a metronome clicking effect
C* ChorusI --> set feedback to high to get echo

my favorite in the Caps plugins is C* JVRev


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Joined: 10 Mar 2010
Posts: 3778
Location: Ontario

PostPosted: Sat 24 Nov 2012, 16:00    Post_subject:  

Tap plugins have a good website for support.
There is a description of the settings which is nice.

Here's some observations...

Sound volume is low so I have to normalize

TAP Pink/Fractal Noise ---> adds a hiss to background which
might be useful in film editing.

Tap pitch shift ---> this can make a voice sound like it's
been recorded by a distant microphone . Might be useful for
film editing.

Instructions - Set dry to minus 50 and wet to minux 40
If semitone shift is set to high level (i.e. 6.0) , then you get
space alien voice

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Joined: 10 Mar 2010
Posts: 3778
Location: Ontario

PostPosted: Sat 24 Nov 2012, 16:10    Post_subject:  

Here is some notes for the original LADSPA-plugins.
I tested with simple mono speaking voice

Auto phasor ---> adjust feedback to get feedback affect
Chebystiev distortion ---> adds static
Vinyl (Vinyl effect) ---> makes audio sound like it came from old vinyl
Gong --> interesting echo
DJ Flange --> simple flange effect
multivoice chorus ---> chorus
Bode frequency ---> excellent underwater effect
Plate reverb ---> put settings to right to get a stadium echo
RingMod ---> convert to space alien voice
GVerb ---> excellent reverb effect
Flanger ---> set Feedback to -0.6
Rate shifter --> makes voice high pitched but doubles the words
non Band limited single sample impulse ---> simple ticking beat

Don't confuse 'Bode frequency' with 'Bode frequency (CV)'.
I wasn't able to get 'Bode frequency (CV)' to work Crying or Very sad

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