Closed issue by thenktor on void-packages repository

https://github.com/void-linux/void-packages/issues/32991

Description:
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### System

* xuname:  Void 5.13.18_1 x86_64 GenuineIntel uptodate rFF
* package: easyeffects-6.1.0_1

### Expected behavior
All filters should work

### Actual behavior
Equalizer does not work

### Infos
It seems there is a missing dependency. Easyeffects says it uses *Linux Studio Plugins* for the equalizer, but I cannot see any *lsp* package installed or in repository.
Furthermore when starting Easyeffects a lot of messages appear:
```txt
[...]
(easyeffects:18912): easyeffects-WARNING **: 11:26:39.890: lv2_wrapper: http://lsp-plug.in/plugins/lv2/para_equalizer_x32_lr port symbol not found: ftr_15

(easyeffects:18912): easyeffects-WARNING **: 11:26:39.891: lv2_wrapper: http://lsp-plug.in/plugins/lv2/para_equalizer_x32_lr port symbol not found: fmr_15

(easyeffects:18912): easyeffects-WARNING **: 11:26:39.891: lv2_wrapper: http://lsp-plug.in/plugins/lv2/para_equalizer_x32_lr port symbol not found: sr_15

(easyeffects:18912): easyeffects-WARNING **: 11:26:39.895: lv2_wrapper: http://lsp-plug.in/plugins/lv2/para_equalizer_x32_lr port symbol not found: fr_16
[...]
```