25 Jan
2009
25 Jan
'09
1:46 a.m.
Hi,
I'm making a random "beat" generator based on a directory tree of
samples and a map file. Currently, it shuffles sample order and
creates a list of samples and their corresponding start time (example
list below).
I need a good way to mix all of these seperate samples into one single
audio file based on the time at which each starts at. Any
recommendations or thoughts would be appreciated. File format doesn't
matter, I'll use whatever is easiest.
Thanks,
Erik Nomitch
ex:
at: 0.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 2.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 6.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 10.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 14.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 6.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 10.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 14.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 16.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 18.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 16.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 20.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 24.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 28.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 32.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
etc...
25 Jan
25 Jan
1:24 p.m.
New subject: mixing multiple samples into a single audio file based on start times
On Sat, Jan 24, 2009 at 10:46:23PM -0700, Erik Nomitch wrote:
I need a good way to mix all of these seperate samples
into one single
audio file based on the time at which each starts at. Any
recommendations or thoughts would be appreciated. File format doesn't
matter, I'll use whatever is easiest.
Thanks,
Erik Nomitch
ex:
at: 0.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 2.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
Here is an idea, not tested... that is supported by Ecasound 2.5.2
-------------------- setup.ecs ----------------
-a:1 -i:playat,0.0,/home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
-a:2 -i:playat,2.0,/home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
-a:3 -i:playat,4.0,/home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
-a:all -o:alsa,default
-----------------------------------------------
then
ecasound setup.ecs
or for diagnostic purposes:
ecasound -c setup.ecs
start
See 'man ecsasound' for details, or any of the other fine
documentation.
Hope this helps,
Joel
--
Joel Roth
26 Jan
26 Jan
2:44 p.m.
Hi all,
Thank you for all the great responses. I'm currently trying the
ecasound .ecs file solution. Everything mixes in the correct places,
but I'm getting weird artifacts. I have a directory of evidence/clues
here: http://eriknomitch.com/misc/ecasound/
For this example, I'm mixing in four different instances of sample.wav
into out.wav. On samples 1 and 3 the sample seems to play for a split
second and before it's supposed to and then continues playing as you
can see here: http://eriknomitch.com/misc/ecasound/ss.png
(using ecasound 2.5.2, happens when I compile from source and when I
use my package manager)
I couldn't subscribe to the ecasound mailing list for some reason so I
thought I'd try here. I have tried this with a few different .wav
files with similar hiccups. This also happens when I send to -o:alsa
Thanks,
Erik Nomitch
On Sat, Jan 24, 2009 at 10:46 PM, Erik Nomitch <enomitch(a)gmail.com> wrote:
Hi,
I'm making a random "beat" generator based on a directory tree of
samples and a map file. Currently, it shuffles sample order and
creates a list of samples and their corresponding start time (example
list below).
I need a good way to mix all of these seperate samples into one single
audio file based on the time at which each starts at. Any
recommendations or thoughts would be appreciated. File format doesn't
matter, I'll use whatever is easiest.
Thanks,
Erik Nomitch
ex:
at: 0.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 2.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 6.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 10.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 14.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 6.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 10.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 14.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 16.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 18.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
at: 4.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2A.wav
at: 8.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_C2S.wav
at: 12.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1A.wav
at: 16.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_T1S.wav
at: 20.0 play /home/tux/.projects/elign/808/clap/808Clap-Kult_aOrig.wav
at: 24.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01.wav
at: 28.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_ST.wav
at: 32.0 play /home/tux/.projects/elign/808/clap/808Clap-R8_01_VT1.wav
etc...
27 Jan
27 Jan
7:13 p.m.
New subject: mixing multiple samples into a single audio file based on start times
Hi,
On Mon, 26 Jan 2009, Erik Nomitch wrote:
ecasound .ecs file solution. Everything mixes in the
correct places,
but I'm getting weird artifacts. I have a directory of evidence/clues
here: http://eriknomitch.com/misc/ecasound/
... the discussion has continued on ecasound-list. Erik has indeed
discovered a rather nasty bug in the "playat" code. :( A fix is now
available, together with a snapshot tarball release -- upgrade is
recommended to all "playat" users:
http://eca.cx/ecasound-list/2009/01/0090.html
I couldn't subscribe to the ecasound mailing list
for some reason so I
thought I'd try here. I have tried this with a few different .wav
If anyone else has had similar problems with the list, please contact me
privately (the list is hosted at sf.net).
5808
days inactive
5810
days old
linux-audio-user@lists.linuxaudio.org
3 comments
3 participants
participants (3)
-
Erik Nomitch -
Joel Roth -
Kai Vehmanen