Hi people,
I'm attempting to setup an equalizer at ALSA level, and the tap_eq LADSPA plugin seems to be the right way to do this. However I found only very few documentation on LADSPA plugins usage in ALSA.. it was still enough to fill my asound.conf file :
######
defaults.pcm.rate_converter "samplerate"
pcm.hd595_ladspa {
type ladspa
slave.pcm "plughw:0,0";
playback_plugins [ {
id 2141
label tap_eq
filename "/usr/lib/ladspa/tap_eq.so"
input {
controls [ 60 -4.5
170 0
310 -4.5
600 -11
1000 -8.5
3000 -13
12000 -15
14000 -8.2 ]
}
} ]
}
pcm.hd595 {
type plug
slave.pcm "hd595_ladspa";
}
######
thought it doesn't work for now. Here's the aplay output :
$ aplay -Dhd595 test.wav
ALSA lib pcm_ladspa.c:1481:(snd_pcm_ladspa_add_plugin) Unable to load plugin 'tap_eq' ID 2141, filename '/usr/lib/ladspa/tap_eq.so'
aplay: main:550: audio open error: Aucun fichier ou répertoire de ce type
/usr/lib/ladspa/tap_eq.so is present, also commenting some of the id/label/filename lines doesn't help either. .
Something wrong with my config ? ( ALSA 1.0.13 drivers and lib )
Cheers!
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