Re: [LAU] mixing multiple samples into a single audio file based on start times

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@email-addr-hidden> 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...
>
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Received on Tue Jan 27 00:08:48 2009