Volumio2 parametric equalizer plugin

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Volumio2 parametric equalizer plugin

Postby parthabhatta » Wed Apr 25 2018 16:02

There is some problem still now. The first step goes on ok. Starting from mkdir command it fails. Pasting the output.

volumio@volumio:~$ wget https://github.com/balbuze/volumio-plug ... triceq.zip
converted 'https://github.com/balbuze/volumio-plugins/raw/master/plugins/audio_interface/volparametriceq/volparametriceq.zip' (ANSI_X3.4-1968) -> 'https://github.com/balbuze/volumio-plugins/raw/master/plugins/audio_interface/volparametriceq/volparametriceq.zip' (UTF-8)
--2018-04-25 16:00:48-- https://github.com/balbuze/volumio-plug ... triceq.zip
Resolving github.com (github.com)... 192.30.253.113, 192.30.253.112
Connecting to github.com (github.com)|192.30.253.113|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/balbu ... triceq.zip [following]
converted 'https://raw.githubusercontent.com/balbuze/volumio-plugins/master/plugins/audio_interface/volparametriceq/volparametriceq.zip' (ANSI_X3.4-1968) -> 'https://raw.githubusercontent.com/balbuze/volumio-plugins/master/plugins/audio_interface/volparametriceq/volparametriceq.zip' (UTF-8)
--2018-04-25 16:00:50-- https://raw.githubusercontent.com/balbu ... triceq.zip
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.36.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.36.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 862516 (842K) [application/zip]
Saving to: 'volparametriceq.zip.1'

volparametriceq.zip 100%[=====================>] 842.30K 324KB/s in 2.6s

2018-04-25 16:00:54 (324 KB/s) - 'volparametriceq.zip.1' saved [862516/862516]

volumio@volumio:~$ mkdir ./volparametriceq
mkdir: cannot create directory './volparametriceq': File exists
volumio@volumio:~$ miniunzip volparametriceq.zip -d ./volparametriceq
MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant
more info at http://www.winimage.com/zLibDll/unzip.html

volparametriceq.zip opened
Error changing into ./volparametriceq, aborting
volumio@volumio:~$ cd ./volparametriceq
-bash: cd: ./volparametriceq: Not a directory
volumio@volumio:~$
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Volumio2 parametric equalizer plugin

Postby balbuze » Wed Apr 25 2018 16:47

please remove all previous file and restart the installation. I rechecked it and works fine...
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Volumio2 parametric equalizer plugin

Postby parthabhatta » Fri Apr 27 2018 02:20

Ok. Please tell me the path where the files need to be cleared / deleted. Moreover can I delete the files through ssh?
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Volumio2 parametric equalizer plugin

Postby balbuze » Fri Apr 27 2018 05:42

The location depends on where you put the files... If you just ssh, it is probably in /home/volumio, except if you CD to an other folder before you tried to install.
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Volumio2 parametric equalizer plugin

Postby parthabhatta » Fri Apr 27 2018 15:19

@balbuze
Thanks.
Removing previous files worked.
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Volumio2 parametric equalizer plugin

Postby Ivo » Wed May 16 2018 11:34

Thank you very much for creating this! Works very well and allows precise adjustments.

I use it to roughly correct both room and loudspeaker response with (diy loudspeaker, currently in development). Easy to go from frequency response measurment, to simulations of EQ, to settings in this plugin in Volumio.

As said, 4 bands is a bit limited, but I gladly use what I can get.
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Volumio2 parametric equalizer plugin

Postby Berry » Thu May 17 2018 05:30

Also here big THANK YOU from me!
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Volumio2 parametric equalizer plugin

Postby pierre232 » Sun May 27 2018 19:53

Hi there,

Thanks for your efforts in making several eq plugins for volumio. I've succesfully used the "simple" 10 band equalizer and wanted to try this one instead.

I have a rpi zero with and external dac connected to it, and when I enable this plugin there is no sound. When I disable the equalizer (slider in the lower section of the plugin settings) there is sound.

Could it be that this plugin is not compatible with the rpi zero? Maybe some instructions in the library that are not supported by this CPU?

I see you made a special x86 variant, which parts are CPU specific, then I can look into it and fix it for the rpi zero...
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Volumio2 parametric equalizer plugin

Postby pierre232 » Mon May 28 2018 15:41

pierre232 wrote:Could it be that this plugin is not compatible with the rpi zero? Maybe some instructions in the library that are not supported by this CPU?
I see you made a special x86 variant, which parts are CPU specific, then I can look into it and fix it for the rpi zero...



Found it, when I wanted to use the library on the rpi zero I got an error:
volumio@volumio:~$ applyplugin 20khz_16.wav 20khz_16out.wav /usr/lib/ladspa/caps.so.org PlateX2 0.75 0.5 0.25 0.25
Illegal instruction

I've recompiled the caps library for armv6:
volumio@volumio:~$ applyplugin 20khz_16.wav 20khz_16out.wav /usr/lib/ladspa/caps.so PlateX2 0.75 0.5 0.25 0.25
Peak output: 9369.39

And it is working like a charm, with unexpectedly much CPU headroom to spare! I thought this would be more CPU intensive, but luckily not.

If you want I can send you my caps.so to support the rpi zero in the plugin also.
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Volumio2 parametric equalizer plugin

Postby balbuze » Mon May 28 2018 16:31

Well done!
I don't own a rpi0, so I never tested on it!
You can make a PULL request on my github. I'll merge it and update install.sh in order to detect the cpu.
Thanks!
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