Subject: [ecasound] muting a loop device doesn't appear to squash it
From: Jeremy Hall (jhall_AT_uu.net)
Date: Tue Nov 13 2001 - 21:08:07 EET
Hi,
I have the following setup.
# ecasound chainsetup file
# general
-b:64 -r:50 -z:intbuf -z:nodb -sr:48000 -n:pr9 -X -z:noxruns -z:psr -t:1095
# audio inputs
-a:7 -f:f32_le,1,48000 -i:audio7.wav,
-a:8 -f:f32_le,1,48000 -i:audio8.wav,
-a:9 -f:f32_le,1,48000 -i:audio9.wav, -y:2084.139
-a:10 -f:f32_le,1,48000 -i:audio10.wav, -y:2084.139
-a:11 -f:f32_le,1,48000 -i:audio11.wav, -y:2084.139
-a:12 -f:f32_le,1,48000 -i:audio12.wav, -y:2084.139
-a:13 -f:f32_le,1,48000 -i:audio13.wav, -y:2084.139
-a:15 -f:f32_le,1,48000 -i:audio15.wav, -y:2084.139
-a:16 -f:f32_le,1,48000 -i:audio16.wav, -y:2084.139
-a:17 -f:f32_le,1,48000 -i:audio17.wav, -y:2084.139
-a:18 -f:f32_le,1,48000 -i:audio18.wav, -y:2084.139
-a:19 -f:f32_le,1,48000 -i:audio19.wav, -y:2084.139
-a:20 -f:f32_le,1,48000 -i:audio20.wav, -y:2084.139
-a:21 -f:f32_le,1,48000 -i:audio21.wav, -y:2084.139
-a:22 -f:s32_le,2,48000 -i:loop,1,1
-a:23 -f:s32_le,2,48000 -i:loop,2,2
-a:24 -f:s32_le,2,48000 -i:loop,3,3
-a:25 -f:s32_le,2,48000 -i:loop,4,4
-a:26,27 -f:s32_le,2,48000 -i:loop,5,5
# audio outputs
-a:17,18,19 -f:s32_le,2,48000 -o:loop,1,1
-a:20 -f:s32_le,2,48000 -o:null
-a:11,12,13,15,16,21 -f:s32_le,2,48000 -o:loop,2,2
-a:9,10 -f:s32_le,2,48000 -o:loop,3,3
-a:7,8 -f:s32_le,2,48000 -o:loop,4,4
-a:22,23,24,25 -f:s32_le,2,48000 -o:loop,5,5
-a:26 -f:s32_le,2,48000 -o:alsa,dsp1
-a:27 -f:s16_le,2,48000 -o:/tmp/out.raw,
# chain operators and controllers
-a:7 -epp:0.00
-a:8 -erc:1.00,2.00 -epp:100.00
-a:9 -epp:0.00 -ea:201.14
-a:10 -erc:1.00,2.00 -epp:100.00 -ea:201.14
-a:11 -epp:0.00 -ea:159.00
-a:12 -erc:1.00,2.00 -epp:100.00 -ea:159.00
-a:13 -erc:1.00,2.00 -epp:25.00 -ea:600.00
-a:15 -erc:1.00,2.00 -epp:50.00 -ea:130.00
-a:16 -erc:1.00,2.00 -epp:75.00 -ea:16.00
-a:17 -erc:1.00,2.00 -epp:40.00 -ea:100.00 -eli:1203,2.00,600.00,2.00 -eli:1403,-8.00,0.020,0.25,0.12 -ea:20.00
-a:18 -erc:1.00,2.00 -epp:60.00 -eli:1403,0.01,1.00,0.75,0.20 -ea:38.00 -ea:80.00
-a:19 -erc:1.00,2.00 -epp:50.00 -eli:1403,0.49,0.25,0.25,0.50 -ea:38.00 -ea:100.00
-a:20 -erc:1.00,2.00 -epp:50.00 -ea:5.52
-a:21 -erc:1.00,2.00 -epp:90.00 -ea:76.10 -ea:100.00
-a:22 -eli:1123,0.00,0.90,0.30,0.00,0.50,1.00 -ea:850.00
-a:23 -ea:200.00
-a:24 -ea:100.00
-a:25 -ea:43.00 -eli:1203,2.00,130.00,1.50 -eli:1203,3.00,1500.00,6.00 -eli:1123,0.00,0.75,0.70,0.13,0.50,1.00
-a:26 -ea:100.00
-a:27 -ea:1000.00
now you can see that 22,23,24,25 feed 26 and 27 and are the loop
outputs. how things are set up
7 and 8 have a piano, 9 and 10 are room mics, were on to capture the feel,
11,12,13,15,16,21 are instruments, 17,18,19 are vocals, 20 is unused, 22
is the vocals mix group, 23 is the instruments mix group, 24 is the room
mix group, 25 is the piano mix group, 26 is a monitor out, and 27 is a
production out.
As you can see, by mixing all these channels together, one need only mute
the groups to mute a flock of vocals or instruments, one also need amplify
the final output a _LOT_ to get anything close to 0DB.
but why I am writing this note is when you mute these channels you get
bleeding in the right channel, for ex if I mute the vocals group I still
hear them a bit in the right channel. not sure about the left, but
definitely the right.
_J
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This archive was generated by hypermail 2b28 : Tue Nov 13 2001 - 21:01:51 EET