Girth wrote:
> What do you see if you use plug:equal ?
I don't know :)
I think we have 2 issues. The first one is this strange double-free
crash whenever equal is in use. I went back to a fresh PCP 3.2.0
install, and I just get this error consistently when I try to mpg123 or
aplay a file. Sound is ok regardless.
I dropped a message in the PCP3.2 announce thread, either the devs look
at it or not, since the machine doesn't crash I'm ready to send the
trace to /dev/null and forget about it.
The second one, overlaying a sound over the music, all converted to
mono, begins to get sorted. This is my asound.conf file:
Code:
--------------------
tc@pcp:~$ cat /etc/asound.conf
# default - Generated by piCorePlayer
# Unused. Disable it?
pcm.!default {
type plug
slave.pcm "hw:0,0"
}
# PCP3.2: squeezelite gets set to use this device ("-o equal")
pcm.equal {
type plug;
slave.pcm plugequal;
# Mono downmix
ttable {
0.1 0.5
0.0 0.5
1.0 0.5
1.1 0.5
}
}
# Used by equal. Why not.
pcm.plugequal {
type equal;
slave.pcm "plug:dmixer";
controls "/home/tc/.alsaequal.bin"
library "/usr/local/lib/ladspa/caps.so"
}
# Used by plugequal. Allows shared access to device "equal"
pcm.dmixer {
type dmix
ipc_key 1234
ipc_key_add_uid 1
ipc_perm 0666
slave {
pcm "hw:1,0"
}
}
# Whatever ctl magic things
ctl.dmixer {
type hw
card 1
}
ctl.equal {
type equal;
controls "/home/tc/.alsaequal.bin"
library "/usr/local/lib/ladspa/caps.so"
}
--------------------
With this, squeezelite plays in mono and equalized, and I can play a
soundbite at the same time. squeezelite uses "-o equal" (don't know
where PCP sets that), and to overlay a sound I can "sudo aplay -D equal
xxx.wav"
One thing really doesn't cut it: volume control. I need to reduce the
volume for squeezelite temporarily while I play my sound. For the moment
I would need to reduce Digital volume something like 100% to 50%, boost
the player volume setting on LMS so that music remains audible (players
are set at 20-30%), and then play the sound.
That won't work.
Since I am using mono I '\"guess\"'
(https://support.hifiberry.com/hc/en-us/community/posts/201494532/comments/207535179)
squeezelite could output to the left channel, my program to the right
channel, and use different values for left and right Digital volume. In
the end however I still need to output the exact same audio on both
speakers. I fear a t-table f-fest.
I will eagerly read your suggestions.
3 SB 3 Libratone Loop, Zipp Mini iPeng (iPhone + iPad) LMS 7.9
(linux) with plugins: CD Player, WaveInput, Triode's BBC iPlayer by bpa
IRBlaster by Gwendesign (Felix) Server Power Control by Gordon
Harris Smart Mix, Music Walk With Me, What Was That Tune? by Michael
Herger PowerSave by Jason Holtzapple Song Info, Song Lyrics by
Erland Isaksson AirPlay Bridge by philippe_44 WeatherTime by Martin
Rehfeld Auto Dim Display, SaverSwitcher, ContextMenu by Peter Watkins.
------------------------------------------------------------------------
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