Re: Enabling LADSPA When Building a SOX Binary

[Christopher Stevens <chris@christopherstevens.cc>]

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Progress, hitting a final wall perhaps:

It seems like everything is in order for enabling ladspa. Awesome! The last
challenge I'm having is using a choice ladspa plugin to bring pitch to my
currently narrative thank you song voices with the vocoder plugin found
here:

http://www.sirlab.de/linux/download_vocoder_ladspa.html

Installation was pretty straightforward:

wget http://www.sirlab.de/linux/download/vocoder-ladspa-0.4.tgz
tar zxf vocoder-ladspa-0.4.tgz
cd vocoder-0.4
#edit INSTALL_PLUGINS_DIR in Makefile to taste, then
make
make install

Eric,
It looks like the example I originally found from 2012 was written by you
(cool!):
https://sourceforge.net/p/sox/patches/92/

When I attempt to run this, I'm thinking some things have changed since
then as I see errors (or I'm likely doing something wrong to start):

sox -M formant.wav carrier.wav \
-b 16 result.wav rate 44100 \
ladspa vocoder 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Result:

sox FAIL rate: usage: ...

Edit (rate to --rate):

sox -M formant.wav carrier.wav \
-b 16 result.wav --rate 44100 \
ladspa vocoder 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Result:

sox FAIL formats: can't open input file `1': No such file or directory

If I run this:

analyseplugin vocoder

The ports hint to me that I'm using it out of order within SOX perhaps?

Plugin Name: "Vocoder"
Plugin Label: "vocoder"
Plugin Unique ID: 1441
Maker: "Achim Settelmeier (adapted to LADSPA by Josh Green)"
Copyright: "None"
Must Run Real-Time: No
Has activate() Function: Yes
Has deactivate() Function: No
Has run_adding() Function: No
Environment: Normal or Hard Real-Time
Ports: "Formant" input, audio
"Carrier" input, audio
"Output" output, audio
"Number of bands" input, control, 1 to 16, integer
"Band 1 Level" input, control, 0 to 1
"Band 2 Level" input, control, 0 to 1
"Band 3 Level" input, control, 0 to 1
"Band 4 Level" input, control, 0 to 1
"Band 5 Level" input, control, 0 to 1
"Band 6 Level" input, control, 0 to 1
"Band 7 Level" input, control, 0 to 1
"Band 8 Level" input, control, 0 to 1
"Band 9 Level" input, control, 0 to 1
"Band 10 Level" input, control, 0 to 1
"Band 11 Level" input, control, 0 to 1
"Band 12 Level" input, control, 0 to 1
"Band 13 Level" input, control, 0 to 1
"Band 14 Level" input, control, 0 to 1
"Band 15 Level" input, control, 0 to 1
"Band 16 Level" input, control, 0 to 1

Thanks much for your work on this project. Also, thanks again for taking a
look at this thread!

Kind regards,

Chris

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