Hello,
I try using Stereo Amplifier plugin from ladspa sdk.
This is my .asoundrc
pcm.amp_s {
type ladspa
slave.pcm "plughw:0,0"
plugins {
0 {
id 1049
label "amp_stereo"
# channels 2
filename "/usr/src/ladspa/ladspa_sdk/plugins/amp.so"
policy none
input {
bindings {
0 0
1 1
}
}
output {
bindings {
0 0
1 1
}
}
input {
controls [ 4 ]
}
}
}
}
pcm.amps {
type plug
slave.pcm "amp_s"
slave.channels 2
ttable {
0.0 1
1.1 1
}
}
and than i type next command:
[alexx@alexx alexx]$ aplay -Damps sine_1k_2x16x44100.wav
Playing WAVE 'sine_1k_2x16x44100.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
ALSA lib pcm_ladspa.c:440:(snd_pcm_ladspa_allocate_instances) Unable to
connect input port of plugin 'Stereo Amplifier' channel 1 depth 0
aplay: set_params:885: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 32
CHANNELS: 2
RATE: 44100
PERIOD_TIME: (23219 23220)
PERIOD_SIZE: 1024
PERIOD_BYTES: 4096
PERIODS: 16
BUFFER_TIME: (371519 371520)
BUFFER_SIZE: 16384
BUFFER_BYTES: 65536
TICK_TIME: 10000
What's wrong and how I must do this config to work?
ALSA 1.0.9a, sound card snd-au8830 (Vortex2)
PS
Sorry, for bad english, its not my native language...
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